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CERTFR-2026-AVI-0354
Vulnerability from certfr_avis - Published: 2026-03-25 - Updated: 2026-03-25
De multiples vulnérabilités ont été découvertes dans les produits Mozilla. Certaines d'entre elles permettent à un attaquant de provoquer une exécution de code arbitraire à distance, une élévation de privilèges et un déni de service à distance.
Solutions
Se référer au bulletin de sécurité de l'éditeur pour l'obtention des correctifs (cf. section Documentation).
Impacted products
| Vendor | Product | Description | ||
|---|---|---|---|---|
| Mozilla | Firefox | Firefox versions antérieures à 149 | ||
| Mozilla | Thunderbird | Thunderbird versions antérieures à 140.9 | ||
| Mozilla | Thunderbird | Thunderbird versions antérieures à 149 | ||
| Mozilla | Firefox ESR | Firefox ESR versions antérieures à 140.9 | ||
| Mozilla | Firefox ESR | Firefox ESR versions antérieures à 115.34 |
References
| Title | Publication Time | Tags | |||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||||
{
"$ref": "https://www.cert.ssi.gouv.fr/openapi.json",
"affected_systems": [
{
"description": "Firefox versions ant\u00e9rieures \u00e0 149",
"product": {
"name": "Firefox",
"vendor": {
"name": "Mozilla",
"scada": false
}
}
},
{
"description": "Thunderbird versions ant\u00e9rieures \u00e0 140.9",
"product": {
"name": "Thunderbird",
"vendor": {
"name": "Mozilla",
"scada": false
}
}
},
{
"description": "Thunderbird versions ant\u00e9rieures \u00e0 149",
"product": {
"name": "Thunderbird",
"vendor": {
"name": "Mozilla",
"scada": false
}
}
},
{
"description": "Firefox ESR versions ant\u00e9rieures \u00e0 140.9",
"product": {
"name": "Firefox ESR",
"vendor": {
"name": "Mozilla",
"scada": false
}
}
},
{
"description": "Firefox ESR versions ant\u00e9rieures \u00e0 115.34",
"product": {
"name": "Firefox ESR",
"vendor": {
"name": "Mozilla",
"scada": false
}
}
}
],
"affected_systems_content": "",
"content": "## Solutions\n\nSe r\u00e9f\u00e9rer au bulletin de s\u00e9curit\u00e9 de l\u0027\u00e9diteur pour l\u0027obtention des correctifs (cf. section Documentation).",
"cves": [
{
"name": "CVE-2026-4684",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-4684"
},
{
"name": "CVE-2026-4721",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-4721"
},
{
"name": "CVE-2026-4725",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-4725"
},
{
"name": "CVE-2026-4728",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-4728"
},
{
"name": "CVE-2026-4720",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-4720"
},
{
"name": "CVE-2026-4710",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-4710"
},
{
"name": "CVE-2026-4694",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-4694"
},
{
"name": "CVE-2026-4698",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-4698"
},
{
"name": "CVE-2026-4690",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-4690"
},
{
"name": "CVE-2026-4697",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-4697"
},
{
"name": "CVE-2026-4689",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-4689"
},
{
"name": "CVE-2026-4711",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-4711"
},
{
"name": "CVE-2026-4706",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-4706"
},
{
"name": "CVE-2026-4715",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-4715"
},
{
"name": "CVE-2026-4729",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-4729"
},
{
"name": "CVE-2026-4696",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-4696"
},
{
"name": "CVE-2026-4726",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-4726"
},
{
"name": "CVE-2026-4687",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-4687"
},
{
"name": "CVE-2026-4709",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-4709"
},
{
"name": "CVE-2025-59375",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-59375"
},
{
"name": "CVE-2026-4714",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-4714"
},
{
"name": "CVE-2026-4699",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-4699"
},
{
"name": "CVE-2026-4695",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-4695"
},
{
"name": "CVE-2026-4693",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-4693"
},
{
"name": "CVE-2026-3889",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-3889"
},
{
"name": "CVE-2026-4692",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-4692"
},
{
"name": "CVE-2026-4701",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-4701"
},
{
"name": "CVE-2026-4724",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-4724"
},
{
"name": "CVE-2026-4705",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-4705"
},
{
"name": "CVE-2026-4717",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-4717"
},
{
"name": "CVE-2026-4700",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-4700"
},
{
"name": "CVE-2026-4723",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-4723"
},
{
"name": "CVE-2026-4688",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-4688"
},
{
"name": "CVE-2026-4712",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-4712"
},
{
"name": "CVE-2026-4707",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-4707"
},
{
"name": "CVE-2026-4716",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-4716"
},
{
"name": "CVE-2026-4704",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-4704"
},
{
"name": "CVE-2026-4727",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-4727"
},
{
"name": "CVE-2026-4722",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-4722"
},
{
"name": "CVE-2026-4713",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-4713"
},
{
"name": "CVE-2026-4718",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-4718"
},
{
"name": "CVE-2026-4685",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-4685"
},
{
"name": "CVE-2026-4702",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-4702"
},
{
"name": "CVE-2026-4719",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-4719"
},
{
"name": "CVE-2026-4708",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-4708"
},
{
"name": "CVE-2026-4371",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-4371"
},
{
"name": "CVE-2026-4691",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-4691"
},
{
"name": "CVE-2026-4686",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-4686"
}
],
"initial_release_date": "2026-03-25T00:00:00",
"last_revision_date": "2026-03-25T00:00:00",
"links": [],
"reference": "CERTFR-2026-AVI-0354",
"revisions": [
{
"description": "Version initiale",
"revision_date": "2026-03-25T00:00:00.000000"
}
],
"risks": [
{
"description": "D\u00e9ni de service \u00e0 distance"
},
{
"description": "Ex\u00e9cution de code arbitraire \u00e0 distance"
},
{
"description": "Non sp\u00e9cifi\u00e9 par l\u0027\u00e9diteur"
},
{
"description": "Contournement de la politique de s\u00e9curit\u00e9"
},
{
"description": "Atteinte \u00e0 la confidentialit\u00e9 des donn\u00e9es"
},
{
"description": "\u00c9l\u00e9vation de privil\u00e8ges"
}
],
"summary": "De multiples vuln\u00e9rabilit\u00e9s ont \u00e9t\u00e9 d\u00e9couvertes dans les produits Mozilla. Certaines d\u0027entre elles permettent \u00e0 un attaquant de provoquer une ex\u00e9cution de code arbitraire \u00e0 distance, une \u00e9l\u00e9vation de privil\u00e8ges et un d\u00e9ni de service \u00e0 distance.",
"title": "Multiples vuln\u00e9rabilit\u00e9s dans les produits Mozilla",
"vendor_advisories": [
{
"published_at": "2026-03-24",
"title": "Bulletin de s\u00e9curit\u00e9 Mozilla mfsa2026-20",
"url": "https://www.mozilla.org/en-US/security/advisories/mfsa2026-20/"
},
{
"published_at": "2026-03-24",
"title": "Bulletin de s\u00e9curit\u00e9 Mozilla mfsa2026-24",
"url": "https://www.mozilla.org/en-US/security/advisories/mfsa2026-24/"
},
{
"published_at": "2026-03-24",
"title": "Bulletin de s\u00e9curit\u00e9 Mozilla mfsa2026-23",
"url": "https://www.mozilla.org/en-US/security/advisories/mfsa2026-23/"
},
{
"published_at": "2026-03-24",
"title": "Bulletin de s\u00e9curit\u00e9 Mozilla mfsa2026-22",
"url": "https://www.mozilla.org/en-US/security/advisories/mfsa2026-22/"
},
{
"published_at": "2026-03-24",
"title": "Bulletin de s\u00e9curit\u00e9 Mozilla mfsa2026-21",
"url": "https://www.mozilla.org/en-US/security/advisories/mfsa2026-21/"
}
]
}
CVE-2026-4710 (GCVE-0-2026-4710)
Vulnerability from cvelistv5 – Published: 2026-03-24 12:30 – Updated: 2026-03-26 18:54
VLAI?
EPSS
Title
Incorrect boundary conditions in the Audio/Video component
Summary
Incorrect boundary conditions in the Audio/Video component. This vulnerability affects Firefox < 149, Firefox ESR < 140.9, Thunderbird < 149, and Thunderbird < 140.9.
Severity ?
9.8 (Critical)
CWE
- CWE-119 - Improper Restriction of Operations within the Bounds of a Memory Buffer
Assigner
References
Impacted products
| Vendor | Product | Version | |||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Mozilla | Firefox |
Affected:
unspecified , < 149
(custom)
|
|||||||||||||||||
|
|||||||||||||||||||
Credits
Sajeeb Lohani
{
"containers": {
"adp": [
{
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 9.8,
"baseSeverity": "CRITICAL",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
"version": "3.1"
}
},
{
"other": {
"content": {
"id": "CVE-2026-4710",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "yes"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-03-26T18:52:46.444267Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-119",
"description": "CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-03-26T18:54:06.751Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"product": "Firefox",
"vendor": "Mozilla",
"versions": [
{
"lessThan": "149",
"status": "affected",
"version": "unspecified",
"versionType": "custom"
}
]
},
{
"product": "Firefox ESR",
"vendor": "Mozilla",
"versions": [
{
"lessThan": "140.9",
"status": "affected",
"version": "unspecified",
"versionType": "custom"
}
]
},
{
"product": "Thunderbird",
"vendor": "Mozilla",
"versions": [
{
"lessThan": "149",
"status": "affected",
"version": "unspecified",
"versionType": "custom"
}
]
},
{
"product": "Thunderbird",
"vendor": "Mozilla",
"versions": [
{
"lessThan": "140.9",
"status": "affected",
"version": "unspecified",
"versionType": "custom"
}
]
}
],
"credits": [
{
"lang": "en",
"value": "Sajeeb Lohani"
}
],
"descriptions": [
{
"lang": "en",
"supportingMedia": [
{
"base64": false,
"type": "text/html",
"value": "Incorrect boundary conditions in the Audio/Video component. This vulnerability affects Firefox \u003c 149, Firefox ESR \u003c 140.9, Thunderbird \u003c 149, and Thunderbird \u003c 140.9."
}
],
"value": "Incorrect boundary conditions in the Audio/Video component. This vulnerability affects Firefox \u003c 149, Firefox ESR \u003c 140.9, Thunderbird \u003c 149, and Thunderbird \u003c 140.9."
}
],
"providerMetadata": {
"dateUpdated": "2026-03-24T20:27:42.269Z",
"orgId": "f16b083a-5664-49f3-a51e-8d479e5ed7fe",
"shortName": "mozilla"
},
"references": [
{
"url": "https://bugzilla.mozilla.org/show_bug.cgi?id=2016370"
},
{
"url": "https://www.mozilla.org/security/advisories/mfsa2026-20/"
},
{
"url": "https://www.mozilla.org/security/advisories/mfsa2026-22/"
},
{
"url": "https://www.mozilla.org/security/advisories/mfsa2026-23/"
},
{
"url": "https://www.mozilla.org/security/advisories/mfsa2026-24/"
}
],
"title": "Incorrect boundary conditions in the Audio/Video component"
}
},
"cveMetadata": {
"assignerOrgId": "f16b083a-5664-49f3-a51e-8d479e5ed7fe",
"assignerShortName": "mozilla",
"cveId": "CVE-2026-4710",
"datePublished": "2026-03-24T12:30:35.852Z",
"dateReserved": "2026-03-23T23:22:21.623Z",
"dateUpdated": "2026-03-26T18:54:06.751Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2026-4705 (GCVE-0-2026-4705)
Vulnerability from cvelistv5 – Published: 2026-03-24 12:30 – Updated: 2026-03-25 19:49
VLAI?
EPSS
Title
Undefined behavior in the WebRTC: Signaling component
Summary
Undefined behavior in the WebRTC: Signaling component. This vulnerability affects Firefox < 149, Firefox ESR < 140.9, Thunderbird < 149, and Thunderbird < 140.9.
Severity ?
9.8 (Critical)
CWE
- CWE-758 - Reliance on Undefined, Unspecified, or Implementation-Defined Behavior
Assigner
References
Impacted products
| Vendor | Product | Version | |||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Mozilla | Firefox |
Affected:
unspecified , < 149
(custom)
|
|||||||||||||||||
|
|||||||||||||||||||
Credits
Evyatar Ben Asher, Keane Lucas, Nicholas Carlini, Newton Cheng, Daniel Freeman, Alex Gaynor, and Joel Weinberger using Claude from Anthropic
{
"containers": {
"adp": [
{
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 9.8,
"baseSeverity": "CRITICAL",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
"version": "3.1"
}
},
{
"other": {
"content": {
"id": "CVE-2026-4705",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "yes"
},
{
"Technical Impact": "total"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-03-25T19:38:48.900474Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-758",
"description": "CWE-758 Reliance on Undefined, Unspecified, or Implementation-Defined Behavior",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-03-25T19:49:54.957Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"product": "Firefox",
"vendor": "Mozilla",
"versions": [
{
"lessThan": "149",
"status": "affected",
"version": "unspecified",
"versionType": "custom"
}
]
},
{
"product": "Firefox ESR",
"vendor": "Mozilla",
"versions": [
{
"lessThan": "140.9",
"status": "affected",
"version": "unspecified",
"versionType": "custom"
}
]
},
{
"product": "Thunderbird",
"vendor": "Mozilla",
"versions": [
{
"lessThan": "149",
"status": "affected",
"version": "unspecified",
"versionType": "custom"
}
]
},
{
"product": "Thunderbird",
"vendor": "Mozilla",
"versions": [
{
"lessThan": "140.9",
"status": "affected",
"version": "unspecified",
"versionType": "custom"
}
]
}
],
"credits": [
{
"lang": "en",
"value": "Evyatar Ben Asher, Keane Lucas, Nicholas Carlini, Newton Cheng, Daniel Freeman, Alex Gaynor, and Joel Weinberger using Claude from Anthropic"
}
],
"descriptions": [
{
"lang": "en",
"supportingMedia": [
{
"base64": false,
"type": "text/html",
"value": "Undefined behavior in the WebRTC: Signaling component. This vulnerability affects Firefox \u003c 149, Firefox ESR \u003c 140.9, Thunderbird \u003c 149, and Thunderbird \u003c 140.9."
}
],
"value": "Undefined behavior in the WebRTC: Signaling component. This vulnerability affects Firefox \u003c 149, Firefox ESR \u003c 140.9, Thunderbird \u003c 149, and Thunderbird \u003c 140.9."
}
],
"providerMetadata": {
"dateUpdated": "2026-03-24T20:27:36.988Z",
"orgId": "f16b083a-5664-49f3-a51e-8d479e5ed7fe",
"shortName": "mozilla"
},
"references": [
{
"url": "https://bugzilla.mozilla.org/show_bug.cgi?id=2014873"
},
{
"url": "https://www.mozilla.org/security/advisories/mfsa2026-20/"
},
{
"url": "https://www.mozilla.org/security/advisories/mfsa2026-22/"
},
{
"url": "https://www.mozilla.org/security/advisories/mfsa2026-23/"
},
{
"url": "https://www.mozilla.org/security/advisories/mfsa2026-24/"
}
],
"title": "Undefined behavior in the WebRTC: Signaling component"
}
},
"cveMetadata": {
"assignerOrgId": "f16b083a-5664-49f3-a51e-8d479e5ed7fe",
"assignerShortName": "mozilla",
"cveId": "CVE-2026-4705",
"datePublished": "2026-03-24T12:30:32.731Z",
"dateReserved": "2026-03-23T23:22:11.844Z",
"dateUpdated": "2026-03-25T19:49:54.957Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2026-4695 (GCVE-0-2026-4695)
Vulnerability from cvelistv5 – Published: 2026-03-24 12:30 – Updated: 2026-03-26 12:55
VLAI?
EPSS
Title
Incorrect boundary conditions in the Audio/Video: Web Codecs component
Summary
Incorrect boundary conditions in the Audio/Video: Web Codecs component. This vulnerability affects Firefox < 149, Firefox ESR < 140.9, Thunderbird < 149, and Thunderbird < 140.9.
Severity ?
7.5 (High)
CWE
- CWE-754 - Improper Check for Unusual or Exceptional Conditions
Assigner
References
Impacted products
| Vendor | Product | Version | |||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Mozilla | Firefox |
Affected:
unspecified , < 149
(custom)
|
|||||||||||||||||
|
|||||||||||||||||||
Credits
Atte Kettunen
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CVE-2026-4715 (GCVE-0-2026-4715)
Vulnerability from cvelistv5 – Published: 2026-03-24 12:30 – Updated: 2026-03-25 19:49
VLAI?
EPSS
Title
Uninitialized memory in the Graphics: Canvas2D component
Summary
Uninitialized memory in the Graphics: Canvas2D component. This vulnerability affects Firefox < 149, Firefox ESR < 140.9, Thunderbird < 149, and Thunderbird < 140.9.
Severity ?
9.1 (Critical)
CWE
- CWE-908 - Use of Uninitialized Resource
Assigner
References
Impacted products
| Vendor | Product | Version | |||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Mozilla | Firefox |
Affected:
unspecified , < 149
(custom)
|
|||||||||||||||||
|
|||||||||||||||||||
Credits
Jun Yang
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CVE-2026-4693 (GCVE-0-2026-4693)
Vulnerability from cvelistv5 – Published: 2026-03-24 12:30 – Updated: 2026-03-26 12:51
VLAI?
EPSS
Title
Incorrect boundary conditions in the Audio/Video: Playback component
Summary
Incorrect boundary conditions in the Audio/Video: Playback component. This vulnerability affects Firefox < 149, Firefox ESR < 115.34, Firefox ESR < 140.9, Thunderbird < 149, and Thunderbird < 140.9.
Severity ?
7.5 (High)
CWE
- CWE-754 - Improper Check for Unusual or Exceptional Conditions
Assigner
References
Impacted products
| Vendor | Product | Version | ||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Mozilla | Firefox |
Affected:
unspecified , < 149
(custom)
|
||||||||||||||||||||||
|
||||||||||||||||||||||||
Credits
Sajeeb Lohani
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CVE-2026-4694 (GCVE-0-2026-4694)
Vulnerability from cvelistv5 – Published: 2026-03-24 12:30 – Updated: 2026-03-26 12:53
VLAI?
EPSS
Title
Incorrect boundary conditions, integer overflow in the Graphics component
Summary
Incorrect boundary conditions, integer overflow in the Graphics component. This vulnerability affects Firefox < 149, Firefox ESR < 115.34, Firefox ESR < 140.9, Thunderbird < 149, and Thunderbird < 140.9.
Severity ?
7.5 (High)
CWE
- CWE-754 - Improper Check for Unusual or Exceptional Conditions
Assigner
References
| URL | Tags | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Mozilla | Firefox |
Affected:
unspecified , < 149
(custom)
|
||||||||||||||||||||||
|
||||||||||||||||||||||||
Credits
Sajeeb Lohani
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CVE-2026-4709 (GCVE-0-2026-4709)
Vulnerability from cvelistv5 – Published: 2026-03-24 12:30 – Updated: 2026-03-25 20:44
VLAI?
EPSS
Title
Incorrect boundary conditions in the Audio/Video: GMP component
Summary
Incorrect boundary conditions in the Audio/Video: GMP component. This vulnerability affects Firefox < 149, Firefox ESR < 115.34, Firefox ESR < 140.9, Thunderbird < 149, and Thunderbird < 140.9.
Severity ?
7.5 (High)
CWE
- CWE-754 - Improper Check for Unusual or Exceptional Conditions
Assigner
References
| URL | Tags | ||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Mozilla | Firefox |
Affected:
unspecified , < 149
(custom)
|
||||||||||||||||||||||
|
||||||||||||||||||||||||
Credits
Sajeeb Lohani
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CVE-2026-3889 (GCVE-0-2026-3889)
Vulnerability from cvelistv5 – Published: 2026-03-24 20:27 – Updated: 2026-03-25 19:49
VLAI?
EPSS
Title
Spoofing issue in Thunderbird
Summary
Spoofing issue in Thunderbird. This vulnerability affects Thunderbird < 149 and Thunderbird < 140.9.
Severity ?
6.5 (Medium)
CWE
- CWE-451 - User Interface (UI) Misrepresentation of Critical Information
Assigner
References
Impacted products
| Vendor | Product | Version | |||||||
|---|---|---|---|---|---|---|---|---|---|
| Mozilla | Thunderbird |
Affected:
unspecified , < 149
(custom)
|
|||||||
|
|||||||||
Credits
Eemeli Aro
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CVE-2026-4722 (GCVE-0-2026-4722)
Vulnerability from cvelistv5 – Published: 2026-03-24 12:30 – Updated: 2026-03-25 03:56
VLAI?
EPSS
Title
Privilege escalation in the IPC component
Summary
Privilege escalation in the IPC component. This vulnerability affects Firefox < 149 and Thunderbird < 149.
Severity ?
8.8 (High)
Assigner
References
Impacted products
| Vendor | Product | Version | |||||||
|---|---|---|---|---|---|---|---|---|---|
| Mozilla | Firefox |
Affected:
unspecified , < 149
(custom)
|
|||||||
|
|||||||||
Credits
Nika Layzell
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CVE-2026-4714 (GCVE-0-2026-4714)
Vulnerability from cvelistv5 – Published: 2026-03-24 12:30 – Updated: 2026-03-25 16:10
VLAI?
EPSS
Title
Incorrect boundary conditions in the Audio/Video component
Summary
Incorrect boundary conditions in the Audio/Video component. This vulnerability affects Firefox < 149, Firefox ESR < 140.9, Thunderbird < 149, and Thunderbird < 140.9.
Severity ?
7.5 (High)
CWE
- CWE-754 - Improper Check for Unusual or Exceptional Conditions
Assigner
References
Impacted products
| Vendor | Product | Version | |||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Mozilla | Firefox |
Affected:
unspecified , < 149
(custom)
|
|||||||||||||||||
|
|||||||||||||||||||
Credits
Sajeeb Lohani
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CVE-2026-4685 (GCVE-0-2026-4685)
Vulnerability from cvelistv5 – Published: 2026-03-24 12:30 – Updated: 2026-03-26 12:47
VLAI?
EPSS
Title
Incorrect boundary conditions in the Graphics: Canvas2D component
Summary
Incorrect boundary conditions in the Graphics: Canvas2D component. This vulnerability affects Firefox < 149, Firefox ESR < 115.34, Firefox ESR < 140.9, Thunderbird < 149, and Thunderbird < 140.9.
Severity ?
7.5 (High)
CWE
- CWE-754 - Improper Check for Unusual or Exceptional Conditions
Assigner
References
| URL | Tags | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Mozilla | Firefox |
Affected:
unspecified , < 149
(custom)
|
||||||||||||||||||||||
|
||||||||||||||||||||||||
Credits
Sajeeb Lohani
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CVE-2026-4692 (GCVE-0-2026-4692)
Vulnerability from cvelistv5 – Published: 2026-03-24 12:30 – Updated: 2026-03-25 14:07
VLAI?
EPSS
Title
Sandbox escape in the Responsive Design Mode component
Summary
Sandbox escape in the Responsive Design Mode component. This vulnerability affects Firefox < 149, Firefox ESR < 115.34, Firefox ESR < 140.9, Thunderbird < 149, and Thunderbird < 140.9.
Severity ?
9.6 (Critical)
Assigner
References
| URL | Tags | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Mozilla | Firefox |
Affected:
unspecified , < 149
(custom)
|
||||||||||||||||||||||
|
||||||||||||||||||||||||
Credits
Tom Ritter
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CVE-2026-4371 (GCVE-0-2026-4371)
Vulnerability from cvelistv5 – Published: 2026-03-24 20:27 – Updated: 2026-03-25 16:24
VLAI?
EPSS
Title
Out of bounds read in IMAP parsing
Summary
A malicious mail server could send malformed strings with negative lengths, causing the parser to read memory outside the buffer. If a mail server or connection to a mail server were compromised, an attacker could cause the parser to malfunction, potentially crashing Thunderbird or leaking sensitive data. This vulnerability affects Thunderbird < 149 and Thunderbird < 140.9.
Severity ?
7.4 (High)
CWE
- CWE-126 - Buffer Over-read
Assigner
References
Impacted products
| Vendor | Product | Version | |||||||
|---|---|---|---|---|---|---|---|---|---|
| Mozilla | Thunderbird |
Affected:
unspecified , < 149
(custom)
|
|||||||
|
|||||||||
Credits
Rintaro Kobayashi
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CVE-2026-4712 (GCVE-0-2026-4712)
Vulnerability from cvelistv5 – Published: 2026-03-24 12:30 – Updated: 2026-03-25 18:08
VLAI?
EPSS
Title
Information disclosure in the Widget: Cocoa component
Summary
Information disclosure in the Widget: Cocoa component. This vulnerability affects Firefox < 149, Firefox ESR < 140.9, Thunderbird < 149, and Thunderbird < 140.9.
Severity ?
7.5 (High)
CWE
- CWE-200 - Exposure of Sensitive Information to an Unauthorized Actor
Assigner
References
Impacted products
| Vendor | Product | Version | |||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Mozilla | Firefox |
Affected:
unspecified , < 149
(custom)
|
|||||||||||||||||
|
|||||||||||||||||||
Credits
Josh Aas
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CVE-2025-59375 (GCVE-0-2025-59375)
Vulnerability from cvelistv5 – Published: 2025-09-15 00:00 – Updated: 2025-11-04 21:13
VLAI?
EPSS
Summary
libexpat in Expat before 2.7.2 allows attackers to trigger large dynamic memory allocations via a small document that is submitted for parsing.
Severity ?
CWE
- CWE-770 - Allocation of Resources Without Limits or Throttling
Assigner
References
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| libexpat project | libexpat |
Affected:
0 , < 2.7.2
(semver)
|
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CVE-2026-4720 (GCVE-0-2026-4720)
Vulnerability from cvelistv5 – Published: 2026-03-24 12:30 – Updated: 2026-03-25 13:10
VLAI?
EPSS
Title
Memory safety bugs fixed in Firefox ESR 140.9, Thunderbird ESR 140.9, Firefox 149 and Thunderbird 149
Summary
Memory safety bugs present in Firefox ESR 140.8, Thunderbird ESR 140.8, Firefox 148 and Thunderbird 148. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Firefox < 149, Firefox ESR < 140.9, Thunderbird < 149, and Thunderbird < 140.9.
Severity ?
9.8 (Critical)
CWE
- CWE-120 - Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
Assigner
References
Impacted products
| Vendor | Product | Version | |||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Mozilla | Firefox |
Affected:
unspecified , < 149
(custom)
|
|||||||||||||||||
|
|||||||||||||||||||
Credits
Christian Holler, Gabriele Svelto, Tom Schuster and the Mozilla Fuzzing Team
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CVE-2026-4704 (GCVE-0-2026-4704)
Vulnerability from cvelistv5 – Published: 2026-03-24 12:30 – Updated: 2026-03-25 18:08
VLAI?
EPSS
Title
Denial-of-service in the WebRTC: Signaling component
Summary
Denial-of-service in the WebRTC: Signaling component. This vulnerability affects Firefox < 149, Firefox ESR < 140.9, Thunderbird < 149, and Thunderbird < 140.9.
Severity ?
7.5 (High)
CWE
- CWE-400 - Uncontrolled Resource Consumption
Assigner
References
Impacted products
| Vendor | Product | Version | |||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Mozilla | Firefox |
Affected:
unspecified , < 149
(custom)
|
|||||||||||||||||
|
|||||||||||||||||||
Credits
Evyatar Ben Asher, Keane Lucas, Nicholas Carlini, Newton Cheng, Daniel Freeman, Alex Gaynor, and Joel Weinberger using Claude from Anthropic
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CVE-2026-4699 (GCVE-0-2026-4699)
Vulnerability from cvelistv5 – Published: 2026-03-24 12:30 – Updated: 2026-03-26 13:01
VLAI?
EPSS
Title
Incorrect boundary conditions in the Layout: Text and Fonts component
Summary
Incorrect boundary conditions in the Layout: Text and Fonts component. This vulnerability affects Firefox < 149, Firefox ESR < 115.34, Firefox ESR < 140.9, Thunderbird < 149, and Thunderbird < 140.9.
Severity ?
7.5 (High)
CWE
- CWE-754 - Improper Check for Unusual or Exceptional Conditions
Assigner
References
| URL | Tags | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Mozilla | Firefox |
Affected:
unspecified , < 149
(custom)
|
||||||||||||||||||||||
|
||||||||||||||||||||||||
Credits
Matej Smycka
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CVE-2026-4700 (GCVE-0-2026-4700)
Vulnerability from cvelistv5 – Published: 2026-03-24 12:30 – Updated: 2026-03-26 13:03
VLAI?
EPSS
Title
Mitigation bypass in the Networking: HTTP component
Summary
Mitigation bypass in the Networking: HTTP component. This vulnerability affects Firefox < 149, Firefox ESR < 140.9, Thunderbird < 149, and Thunderbird < 140.9.
Severity ?
9.8 (Critical)
CWE
- CWE-288 - Authentication Bypass Using an Alternate Path or Channel
Assigner
References
Impacted products
| Vendor | Product | Version | |||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Mozilla | Firefox |
Affected:
unspecified , < 149
(custom)
|
|||||||||||||||||
|
|||||||||||||||||||
Credits
pizzahunthack1
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CVE-2026-4697 (GCVE-0-2026-4697)
Vulnerability from cvelistv5 – Published: 2026-03-24 12:30 – Updated: 2026-03-26 12:58
VLAI?
EPSS
Title
Incorrect boundary conditions in the Audio/Video: Web Codecs component
Summary
Incorrect boundary conditions in the Audio/Video: Web Codecs component. This vulnerability affects Firefox < 149, Firefox ESR < 140.9, Thunderbird < 149, and Thunderbird < 140.9.
Severity ?
7.5 (High)
CWE
- CWE-754 - Improper Check for Unusual or Exceptional Conditions
Assigner
References
Impacted products
| Vendor | Product | Version | |||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Mozilla | Firefox |
Affected:
unspecified , < 149
(custom)
|
|||||||||||||||||
|
|||||||||||||||||||
Credits
Lorenzo
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CVE-2026-4702 (GCVE-0-2026-4702)
Vulnerability from cvelistv5 – Published: 2026-03-24 12:30 – Updated: 2026-03-25 19:50
VLAI?
EPSS
Title
JIT miscompilation in the JavaScript Engine component
Summary
JIT miscompilation in the JavaScript Engine component. This vulnerability affects Firefox < 149, Firefox ESR < 140.9, Thunderbird < 149, and Thunderbird < 140.9.
Severity ?
9.8 (Critical)
CWE
- CWE-843 - Access of Resource Using Incompatible Type ('Type Confusion')
Assigner
References
Impacted products
| Vendor | Product | Version | |||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Mozilla | Firefox |
Affected:
unspecified , < 149
(custom)
|
|||||||||||||||||
|
|||||||||||||||||||
Credits
Evyatar Ben Asher, Keane Lucas, Nicholas Carlini, Newton Cheng, Daniel Freeman, Alex Gaynor, and Joel Weinberger using Claude from Anthropic
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CVE-2026-4706 (GCVE-0-2026-4706)
Vulnerability from cvelistv5 – Published: 2026-03-24 12:30 – Updated: 2026-03-25 19:49
VLAI?
EPSS
Title
Incorrect boundary conditions in the Graphics: Canvas2D component
Summary
Incorrect boundary conditions in the Graphics: Canvas2D component. This vulnerability affects Firefox < 149, Firefox ESR < 115.34, Firefox ESR < 140.9, Thunderbird < 149, and Thunderbird < 140.9.
Severity ?
7.5 (High)
CWE
- CWE-754 - Improper Check for Unusual or Exceptional Conditions
Assigner
References
| URL | Tags | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Mozilla | Firefox |
Affected:
unspecified , < 149
(custom)
|
||||||||||||||||||||||
|
||||||||||||||||||||||||
Credits
Jun Yang
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CVE-2026-4689 (GCVE-0-2026-4689)
Vulnerability from cvelistv5 – Published: 2026-03-24 12:30 – Updated: 2026-03-25 14:05
VLAI?
EPSS
Title
Sandbox escape due to incorrect boundary conditions, integer overflow in the XPCOM component
Summary
Sandbox escape due to incorrect boundary conditions, integer overflow in the XPCOM component. This vulnerability affects Firefox < 149, Firefox ESR < 115.34, Firefox ESR < 140.9, Thunderbird < 149, and Thunderbird < 140.9.
Severity ?
10 (Critical)
CWE
Assigner
References
| URL | Tags | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Mozilla | Firefox |
Affected:
unspecified , < 149
(custom)
|
||||||||||||||||||||||
|
||||||||||||||||||||||||
Credits
Sajeeb Lohani
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CVE-2026-4684 (GCVE-0-2026-4684)
Vulnerability from cvelistv5 – Published: 2026-03-24 12:30 – Updated: 2026-03-25 03:55
VLAI?
EPSS
Title
Race condition, use-after-free in the Graphics: WebRender component
Summary
Race condition, use-after-free in the Graphics: WebRender component. This vulnerability affects Firefox < 149, Firefox ESR < 115.34, Firefox ESR < 140.9, Thunderbird < 149, and Thunderbird < 140.9.
Severity ?
7.5 (High)
CWE
Assigner
References
| URL | Tags | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Mozilla | Firefox |
Affected:
unspecified , < 149
(custom)
|
||||||||||||||||||||||
|
||||||||||||||||||||||||
Credits
Oskar L
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CVE-2026-4716 (GCVE-0-2026-4716)
Vulnerability from cvelistv5 – Published: 2026-03-24 12:30 – Updated: 2026-03-25 19:49
VLAI?
EPSS
Title
Incorrect boundary conditions, uninitialized memory in the JavaScript Engine component
Summary
Incorrect boundary conditions, uninitialized memory in the JavaScript Engine component. This vulnerability affects Firefox < 149, Firefox ESR < 140.9, Thunderbird < 149, and Thunderbird < 140.9.
Severity ?
9.1 (Critical)
CWE
- CWE-908 - Use of Uninitialized Resource
Assigner
References
Impacted products
| Vendor | Product | Version | |||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Mozilla | Firefox |
Affected:
unspecified , < 149
(custom)
|
|||||||||||||||||
|
|||||||||||||||||||
Credits
Pwn2addr
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CVE-2026-4686 (GCVE-0-2026-4686)
Vulnerability from cvelistv5 – Published: 2026-03-24 12:30 – Updated: 2026-03-26 12:47
VLAI?
EPSS
Title
Incorrect boundary conditions in the Graphics: Canvas2D component
Summary
Incorrect boundary conditions in the Graphics: Canvas2D component. This vulnerability affects Firefox < 149, Firefox ESR < 115.34, Firefox ESR < 140.9, Thunderbird < 149, and Thunderbird < 140.9.
Severity ?
7.5 (High)
CWE
- CWE-754 - Improper Check for Unusual or Exceptional Conditions
Assigner
References
| URL | Tags | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Mozilla | Firefox |
Affected:
unspecified , < 149
(custom)
|
||||||||||||||||||||||
|
||||||||||||||||||||||||
Credits
Sajeeb Lohani
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CVE-2026-4690 (GCVE-0-2026-4690)
Vulnerability from cvelistv5 – Published: 2026-03-24 12:30 – Updated: 2026-03-25 14:07
VLAI?
EPSS
Title
Sandbox escape due to incorrect boundary conditions, integer overflow in the XPCOM component
Summary
Sandbox escape due to incorrect boundary conditions, integer overflow in the XPCOM component. This vulnerability affects Firefox < 149, Firefox ESR < 115.34, Firefox ESR < 140.9, Thunderbird < 149, and Thunderbird < 140.9.
Severity ?
9.6 (Critical)
CWE
Assigner
References
| URL | Tags | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Mozilla | Firefox |
Affected:
unspecified , < 149
(custom)
|
||||||||||||||||||||||
|
||||||||||||||||||||||||
Credits
Sajeeb Lohani
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CVE-2026-4707 (GCVE-0-2026-4707)
Vulnerability from cvelistv5 – Published: 2026-03-24 12:30 – Updated: 2026-03-25 19:49
VLAI?
EPSS
Title
Incorrect boundary conditions in the Graphics: Canvas2D component
Summary
Incorrect boundary conditions in the Graphics: Canvas2D component. This vulnerability affects Firefox < 149, Firefox ESR < 115.34, Firefox ESR < 140.9, Thunderbird < 149, and Thunderbird < 140.9.
Severity ?
7.5 (High)
CWE
- CWE-754 - Improper Check for Unusual or Exceptional Conditions
Assigner
References
| URL | Tags | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Mozilla | Firefox |
Affected:
unspecified , < 149
(custom)
|
||||||||||||||||||||||
|
||||||||||||||||||||||||
Credits
Sajeeb Lohani
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CVE-2026-4725 (GCVE-0-2026-4725)
Vulnerability from cvelistv5 – Published: 2026-03-24 12:30 – Updated: 2026-03-25 14:07
VLAI?
EPSS
Title
Sandbox escape due to use-after-free in the Graphics: Canvas2D component
Summary
Sandbox escape due to use-after-free in the Graphics: Canvas2D component. This vulnerability affects Firefox < 149 and Thunderbird < 149.
Severity ?
9.3 (Critical)
CWE
- CWE-416 - Use After Free
Assigner
References
Impacted products
| Vendor | Product | Version | |||||||
|---|---|---|---|---|---|---|---|---|---|
| Mozilla | Firefox |
Affected:
unspecified , < 149
(custom)
|
|||||||
|
|||||||||
Credits
Jun Yang
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CVE-2026-4727 (GCVE-0-2026-4727)
Vulnerability from cvelistv5 – Published: 2026-03-24 12:30 – Updated: 2026-03-25 18:07
VLAI?
EPSS
Title
Denial-of-service in the Libraries component in NSS
Summary
Denial-of-service in the Libraries component in NSS. This vulnerability affects Firefox < 149 and Thunderbird < 149.
Severity ?
7.5 (High)
CWE
- CWE-400 - Uncontrolled Resource Consumption
Assigner
References
Impacted products
| Vendor | Product | Version | |||||||
|---|---|---|---|---|---|---|---|---|---|
| Mozilla | Firefox |
Affected:
unspecified , < 149
(custom)
|
|||||||
|
|||||||||
Credits
Cody
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CVE-2026-4724 (GCVE-0-2026-4724)
Vulnerability from cvelistv5 – Published: 2026-03-24 12:30 – Updated: 2026-03-25 19:50
VLAI?
EPSS
Title
Undefined behavior in the Audio/Video component
Summary
Undefined behavior in the Audio/Video component. This vulnerability affects Firefox < 149 and Thunderbird < 149.
Severity ?
9.1 (Critical)
CWE
- CWE-758 - Reliance on Undefined, Unspecified, or Implementation-Defined Behavior
Assigner
References
Impacted products
| Vendor | Product | Version | |||||||
|---|---|---|---|---|---|---|---|---|---|
| Mozilla | Firefox |
Affected:
unspecified , < 149
(custom)
|
|||||||
|
|||||||||
Credits
Evyatar Ben Asher, Keane Lucas, Nicholas Carlini, Newton Cheng, Daniel Freeman, Alex Gaynor, and Joel Weinberger using Claude from Anthropic
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CVE-2026-4698 (GCVE-0-2026-4698)
Vulnerability from cvelistv5 – Published: 2026-03-24 12:30 – Updated: 2026-03-26 13:00
VLAI?
EPSS
Title
JIT miscompilation in the JavaScript Engine: JIT component
Summary
JIT miscompilation in the JavaScript Engine: JIT component. This vulnerability affects Firefox < 149, Firefox ESR < 115.34, Firefox ESR < 140.9, Thunderbird < 149, and Thunderbird < 140.9.
Severity ?
9.8 (Critical)
CWE
- CWE-843 - Access of Resource Using Incompatible Type ('Type Confusion')
Assigner
References
| URL | Tags | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Mozilla | Firefox |
Affected:
unspecified , < 149
(custom)
|
||||||||||||||||||||||
|
||||||||||||||||||||||||
Credits
maxpl0it working with Trend Micro Zero Day Initiative
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CVE-2026-4729 (GCVE-0-2026-4729)
Vulnerability from cvelistv5 – Published: 2026-03-24 12:30 – Updated: 2026-03-25 13:08
VLAI?
EPSS
Title
Memory safety bugs fixed in Firefox 149 and Thunderbird 149
Summary
Memory safety bugs present in Firefox 148 and Thunderbird 148. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Firefox < 149 and Thunderbird < 149.
Severity ?
9.8 (Critical)
CWE
- CWE-120 - Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
Assigner
References
Impacted products
| Vendor | Product | Version | |||||||
|---|---|---|---|---|---|---|---|---|---|
| Mozilla | Firefox |
Affected:
unspecified , < 149
(custom)
|
|||||||
|
|||||||||
Credits
Christian Holler, Fatih Kilic, Tom Schuster and the Mozilla Fuzzing Team
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CVE-2026-4708 (GCVE-0-2026-4708)
Vulnerability from cvelistv5 – Published: 2026-03-24 12:30 – Updated: 2026-03-25 16:31
VLAI?
EPSS
Title
Incorrect boundary conditions in the Graphics component
Summary
Incorrect boundary conditions in the Graphics component. This vulnerability affects Firefox < 149, Firefox ESR < 140.9, Thunderbird < 149, and Thunderbird < 140.9.
Severity ?
7.5 (High)
CWE
- CWE-754 - Improper Check for Unusual or Exceptional Conditions
Assigner
References
Impacted products
| Vendor | Product | Version | |||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Mozilla | Firefox |
Affected:
unspecified , < 149
(custom)
|
|||||||||||||||||
|
|||||||||||||||||||
Credits
Sajeeb Lohani
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CVE-2026-4721 (GCVE-0-2026-4721)
Vulnerability from cvelistv5 – Published: 2026-03-24 12:30 – Updated: 2026-03-25 13:09
VLAI?
EPSS
Title
Memory safety bugs fixed in Firefox ESR 115.34, Firefox ESR 140.9, Thunderbird ESR 140.9, Firefox 149 and Thunderbird 149
Summary
Memory safety bugs present in Firefox ESR 115.33, Firefox ESR 140.8, Thunderbird ESR 140.8, Firefox 148 and Thunderbird 148. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Firefox < 149, Firefox ESR < 115.34, Firefox ESR < 140.9, Thunderbird < 149, and Thunderbird < 140.9.
Severity ?
9.8 (Critical)
CWE
- CWE-120 - Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
Assigner
References
| URL | Tags | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Mozilla | Firefox |
Affected:
unspecified , < 149
(custom)
|
||||||||||||||||||||||
|
||||||||||||||||||||||||
Credits
Christian Holler, Timothy Nikkel, Tom Schuster and the Mozilla Fuzzing Team
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CVE-2026-4687 (GCVE-0-2026-4687)
Vulnerability from cvelistv5 – Published: 2026-03-24 12:30 – Updated: 2026-03-25 14:06
VLAI?
EPSS
Title
Sandbox escape due to incorrect boundary conditions in the Telemetry component
Summary
Sandbox escape due to incorrect boundary conditions in the Telemetry component. This vulnerability affects Firefox < 149, Firefox ESR < 115.34, Firefox ESR < 140.9, Thunderbird < 149, and Thunderbird < 140.9.
Severity ?
9.6 (Critical)
CWE
- CWE-120 - Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
Assigner
References
| URL | Tags | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Mozilla | Firefox |
Affected:
unspecified , < 149
(custom)
|
||||||||||||||||||||||
|
||||||||||||||||||||||||
Credits
Sajeeb Lohani
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CVE-2026-4701 (GCVE-0-2026-4701)
Vulnerability from cvelistv5 – Published: 2026-03-24 12:30 – Updated: 2026-03-26 13:05
VLAI?
EPSS
Title
Use-after-free in the JavaScript Engine component
Summary
Use-after-free in the JavaScript Engine component. This vulnerability affects Firefox < 149, Firefox ESR < 140.9, Thunderbird < 149, and Thunderbird < 140.9.
Severity ?
9.8 (Critical)
CWE
- CWE-416 - Use After Free
Assigner
References
Impacted products
| Vendor | Product | Version | |||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Mozilla | Firefox |
Affected:
unspecified , < 149
(custom)
|
|||||||||||||||||
|
|||||||||||||||||||
Credits
Gary Kwong
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CVE-2026-4728 (GCVE-0-2026-4728)
Vulnerability from cvelistv5 – Published: 2026-03-24 12:30 – Updated: 2026-03-25 19:49
VLAI?
EPSS
Title
Spoofing issue in the Privacy: Anti-Tracking component
Summary
Spoofing issue in the Privacy: Anti-Tracking component. This vulnerability affects Firefox < 149 and Thunderbird < 149.
Severity ?
6.5 (Medium)
CWE
- CWE-290 - Authentication Bypass by Spoofing
Assigner
References
Impacted products
| Vendor | Product | Version | |||||||
|---|---|---|---|---|---|---|---|---|---|
| Mozilla | Firefox |
Affected:
unspecified , < 149
(custom)
|
|||||||
|
|||||||||
Credits
Aswinkumar Gokulakannan
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CVE-2026-4696 (GCVE-0-2026-4696)
Vulnerability from cvelistv5 – Published: 2026-03-24 12:30 – Updated: 2026-03-26 12:57
VLAI?
EPSS
Title
Use-after-free in the Layout: Text and Fonts component
Summary
Use-after-free in the Layout: Text and Fonts component. This vulnerability affects Firefox < 149, Firefox ESR < 115.34, Firefox ESR < 140.9, Thunderbird < 149, and Thunderbird < 140.9.
Severity ?
9.8 (Critical)
CWE
- CWE-416 - Use After Free
Assigner
References
| URL | Tags | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Mozilla | Firefox |
Affected:
unspecified , < 149
(custom)
|
||||||||||||||||||||||
|
||||||||||||||||||||||||
Credits
Sota Wada
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CVE-2026-4726 (GCVE-0-2026-4726)
Vulnerability from cvelistv5 – Published: 2026-03-24 12:30 – Updated: 2026-03-25 18:07
VLAI?
EPSS
Title
Denial-of-service in the XML component
Summary
Denial-of-service in the XML component. This vulnerability affects Firefox < 149 and Thunderbird < 149.
Severity ?
7.5 (High)
CWE
- CWE-400 - Uncontrolled Resource Consumption
Assigner
References
Impacted products
| Vendor | Product | Version | |||||||
|---|---|---|---|---|---|---|---|---|---|
| Mozilla | Firefox |
Affected:
unspecified , < 149
(custom)
|
|||||||
|
|||||||||
Credits
Hanno Boeck
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CVE-2026-4723 (GCVE-0-2026-4723)
Vulnerability from cvelistv5 – Published: 2026-03-24 12:30 – Updated: 2026-03-25 19:50
VLAI?
EPSS
Title
Use-after-free in the JavaScript Engine component
Summary
Use-after-free in the JavaScript Engine component. This vulnerability affects Firefox < 149 and Thunderbird < 149.
Severity ?
9.8 (Critical)
CWE
- CWE-416 - Use After Free
Assigner
References
Impacted products
| Vendor | Product | Version | |||||||
|---|---|---|---|---|---|---|---|---|---|
| Mozilla | Firefox |
Affected:
unspecified , < 149
(custom)
|
|||||||
|
|||||||||
Credits
Evyatar Ben Asher, Keane Lucas, Nicholas Carlini, Newton Cheng, Daniel Freeman, Alex Gaynor, and Joel Weinberger using Claude from Anthropic
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CVE-2026-4713 (GCVE-0-2026-4713)
Vulnerability from cvelistv5 – Published: 2026-03-24 12:30 – Updated: 2026-03-25 16:13
VLAI?
EPSS
Title
Incorrect boundary conditions in the Graphics component
Summary
Incorrect boundary conditions in the Graphics component. This vulnerability affects Firefox < 149, Firefox ESR < 140.9, Thunderbird < 149, and Thunderbird < 140.9.
Severity ?
7.5 (High)
CWE
- CWE-754 - Improper Check for Unusual or Exceptional Conditions
Assigner
References
Impacted products
| Vendor | Product | Version | |||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Mozilla | Firefox |
Affected:
unspecified , < 149
(custom)
|
|||||||||||||||||
|
|||||||||||||||||||
Credits
Sajeeb Lohani
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CVE-2026-4691 (GCVE-0-2026-4691)
Vulnerability from cvelistv5 – Published: 2026-03-24 12:30 – Updated: 2026-03-26 12:49
VLAI?
EPSS
Title
Use-after-free in the CSS Parsing and Computation component
Summary
Use-after-free in the CSS Parsing and Computation component. This vulnerability affects Firefox < 149, Firefox ESR < 115.34, Firefox ESR < 140.9, Thunderbird < 149, and Thunderbird < 140.9.
Severity ?
9.8 (Critical)
CWE
- CWE-416 - Use After Free
Assigner
References
| URL | Tags | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Mozilla | Firefox |
Affected:
unspecified , < 149
(custom)
|
||||||||||||||||||||||
|
||||||||||||||||||||||||
Credits
Fabius Artrel
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CVE-2026-4717 (GCVE-0-2026-4717)
Vulnerability from cvelistv5 – Published: 2026-03-24 12:30 – Updated: 2026-03-25 13:11
VLAI?
EPSS
Title
Privilege escalation in the Netmonitor component
Summary
Privilege escalation in the Netmonitor component. This vulnerability affects Firefox < 149, Firefox ESR < 140.9, Thunderbird < 149, and Thunderbird < 140.9.
Severity ?
9.8 (Critical)
Assigner
References
Impacted products
| Vendor | Product | Version | |||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Mozilla | Firefox |
Affected:
unspecified , < 149
(custom)
|
|||||||||||||||||
|
|||||||||||||||||||
Credits
Satoki Tsuji
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CVE-2026-4688 (GCVE-0-2026-4688)
Vulnerability from cvelistv5 – Published: 2026-03-24 12:30 – Updated: 2026-03-25 14:08
VLAI?
EPSS
Title
Sandbox escape due to use-after-free in the Disability Access APIs component
Summary
Sandbox escape due to use-after-free in the Disability Access APIs component. This vulnerability affects Firefox < 149, Firefox ESR < 140.9, Thunderbird < 149, and Thunderbird < 140.9.
Severity ?
9.6 (Critical)
CWE
- CWE-416 - Use After Free
Assigner
References
Impacted products
| Vendor | Product | Version | |||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Mozilla | Firefox |
Affected:
unspecified , < 149
(custom)
|
|||||||||||||||||
|
|||||||||||||||||||
Credits
Sajeeb Lohani
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CVE-2026-4719 (GCVE-0-2026-4719)
Vulnerability from cvelistv5 – Published: 2026-03-24 12:30 – Updated: 2026-03-25 19:49
VLAI?
EPSS
Title
Incorrect boundary conditions in the Graphics: Text component
Summary
Incorrect boundary conditions in the Graphics: Text component. This vulnerability affects Firefox < 149, Firefox ESR < 140.9, Thunderbird < 149, and Thunderbird < 140.9.
Severity ?
7.5 (High)
CWE
- CWE-119 - Improper Restriction of Operations within the Bounds of a Memory Buffer
Assigner
References
Impacted products
| Vendor | Product | Version | |||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Mozilla | Firefox |
Affected:
unspecified , < 149
(custom)
|
|||||||||||||||||
|
|||||||||||||||||||
Credits
Sajeeb Lohani
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CVE-2026-4711 (GCVE-0-2026-4711)
Vulnerability from cvelistv5 – Published: 2026-03-24 12:30 – Updated: 2026-03-25 16:25
VLAI?
EPSS
Title
Use-after-free in the Widget: Cocoa component
Summary
Use-after-free in the Widget: Cocoa component. This vulnerability affects Firefox < 149, Firefox ESR < 140.9, Thunderbird < 149, and Thunderbird < 140.9.
Severity ?
9.8 (Critical)
CWE
- CWE-416 - Use After Free
Assigner
References
Impacted products
| Vendor | Product | Version | |||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Mozilla | Firefox |
Affected:
unspecified , < 149
(custom)
|
|||||||||||||||||
|
|||||||||||||||||||
Credits
Josh Aas
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CVE-2026-4718 (GCVE-0-2026-4718)
Vulnerability from cvelistv5 – Published: 2026-03-24 12:30 – Updated: 2026-03-25 19:49
VLAI?
EPSS
Title
Undefined behavior in the WebRTC: Signaling component
Summary
Undefined behavior in the WebRTC: Signaling component. This vulnerability affects Firefox < 149, Firefox ESR < 140.9, Thunderbird < 149, and Thunderbird < 140.9.
Severity ?
8.1 (High)
CWE
- CWE-758 - Reliance on Undefined, Unspecified, or Implementation-Defined Behavior
Assigner
References
Impacted products
| Vendor | Product | Version | |||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Mozilla | Firefox |
Affected:
unspecified , < 149
(custom)
|
|||||||||||||||||
|
|||||||||||||||||||
Credits
Evyatar Ben Asher, Keane Lucas, Nicholas Carlini, Newton Cheng, Daniel Freeman, Alex Gaynor, and Joel Weinberger using Claude from Anthropic
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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