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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-2026-4691 (GCVE-0-2026-4691)
Vulnerability from cvelistv5 – Published: 2026-03-24 12:30 – Updated: 2026-05-07 14:50
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 was fixed in Firefox 149, Firefox ESR 115.34, Firefox ESR 140.9, Thunderbird 149, and Thunderbird 140.9.
Severity
9.8 (Critical)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
- CWE-416 - Use After Free
Assigner
References
6 references
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Mozilla | Firefox |
Unaffected:
115.34 , ≤ 115.*
(rpm)
Unaffected: 140.9 , ≤ 140.* (rpm) Unaffected: 149 , ≤ * (rpm) |
|
| Mozilla | Thunderbird |
Unaffected:
140.9 , ≤ 140.*
(rpm)
Unaffected: 149 , ≤ * (rpm) |
Credits
Fabius Artrel
{
"containers": {
"adp": [
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"metrics": [
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"attackComplexity": "LOW",
"attackVector": "NETWORK",
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"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"
}
},
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"options": [
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},
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"Technical Impact": "total"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-03-26T12:49:03.878448Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-416",
"description": "CWE-416 Use After Free",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-05-07T14:50:45.605Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"product": "Firefox",
"vendor": "Mozilla",
"versions": [
{
"lessThanOrEqual": "115.*",
"status": "unaffected",
"version": "115.34",
"versionType": "rpm"
},
{
"lessThanOrEqual": "140.*",
"status": "unaffected",
"version": "140.9",
"versionType": "rpm"
},
{
"lessThanOrEqual": "*",
"status": "unaffected",
"version": "149",
"versionType": "rpm"
}
]
},
{
"product": "Thunderbird",
"vendor": "Mozilla",
"versions": [
{
"lessThanOrEqual": "140.*",
"status": "unaffected",
"version": "140.9",
"versionType": "rpm"
},
{
"lessThanOrEqual": "*",
"status": "unaffected",
"version": "149",
"versionType": "rpm"
}
]
}
],
"credits": [
{
"lang": "en",
"value": "Fabius Artrel"
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],
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{
"lang": "en",
"supportingMedia": [
{
"base64": false,
"type": "text/html",
"value": "Use-after-free in the CSS Parsing and Computation component. This vulnerability was fixed in Firefox 149, Firefox ESR 115.34, Firefox ESR 140.9, Thunderbird 149, and Thunderbird 140.9."
}
],
"value": "Use-after-free in the CSS Parsing and Computation component. This vulnerability was fixed in Firefox 149, Firefox ESR 115.34, Firefox ESR 140.9, Thunderbird 149, and Thunderbird 140.9."
}
],
"providerMetadata": {
"dateUpdated": "2026-04-13T13:48:42.999Z",
"orgId": "f16b083a-5664-49f3-a51e-8d479e5ed7fe",
"shortName": "mozilla"
},
"references": [
{
"url": "https://bugzilla.mozilla.org/show_bug.cgi?id=2017512"
},
{
"url": "https://www.mozilla.org/security/advisories/mfsa2026-20/"
},
{
"url": "https://www.mozilla.org/security/advisories/mfsa2026-21/"
},
{
"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": "Use-after-free in the CSS Parsing and Computation component"
}
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"cveMetadata": {
"assignerOrgId": "f16b083a-5664-49f3-a51e-8d479e5ed7fe",
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"datePublished": "2026-03-24T12:30:24.376Z",
"dateReserved": "2026-03-23T23:21:44.154Z",
"dateUpdated": "2026-05-07T14:50:45.605Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2026-4692 (GCVE-0-2026-4692)
Vulnerability from cvelistv5 – Published: 2026-03-24 12:30 – Updated: 2026-04-13 13:48
VLAI
EPSS
Title
Sandbox escape in the Responsive Design Mode component
Summary
Sandbox escape in the Responsive Design Mode component. This vulnerability was fixed in Firefox 149, Firefox ESR 115.34, Firefox ESR 140.9, Thunderbird 149, and Thunderbird 140.9.
Severity
9.6 (Critical)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
Assigner
References
6 references
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Mozilla | Firefox |
Unaffected:
115.34 , ≤ 115.*
(rpm)
Unaffected: 140.9 , ≤ 140.* (rpm) Unaffected: 149 , ≤ * (rpm) |
|
| Mozilla | Thunderbird |
Unaffected:
140.9 , ≤ 140.*
(rpm)
Unaffected: 149 , ≤ * (rpm) |
Credits
Tom Ritter
{
"containers": {
"adp": [
{
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
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"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "NONE",
"scope": "CHANGED",
"userInteraction": "REQUIRED",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H",
"version": "3.1"
}
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"timestamp": "2026-03-25T03:55:56.912626Z",
"version": "2.0.3"
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}
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"problemTypes": [
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"descriptions": [
{
"description": "CWE-noinfo Not enough information",
"lang": "en",
"type": "CWE"
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"dateUpdated": "2026-03-25T14:07:21.962Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"product": "Firefox",
"vendor": "Mozilla",
"versions": [
{
"lessThanOrEqual": "115.*",
"status": "unaffected",
"version": "115.34",
"versionType": "rpm"
},
{
"lessThanOrEqual": "140.*",
"status": "unaffected",
"version": "140.9",
"versionType": "rpm"
},
{
"lessThanOrEqual": "*",
"status": "unaffected",
"version": "149",
"versionType": "rpm"
}
]
},
{
"product": "Thunderbird",
"vendor": "Mozilla",
"versions": [
{
"lessThanOrEqual": "140.*",
"status": "unaffected",
"version": "140.9",
"versionType": "rpm"
},
{
"lessThanOrEqual": "*",
"status": "unaffected",
"version": "149",
"versionType": "rpm"
}
]
}
],
"credits": [
{
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"value": "Tom Ritter"
}
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"lang": "en",
"supportingMedia": [
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"base64": false,
"type": "text/html",
"value": "Sandbox escape in the Responsive Design Mode component. This vulnerability was fixed in Firefox 149, Firefox ESR 115.34, Firefox ESR 140.9, Thunderbird 149, and Thunderbird 140.9."
}
],
"value": "Sandbox escape in the Responsive Design Mode component. This vulnerability was fixed in Firefox 149, Firefox ESR 115.34, Firefox ESR 140.9, Thunderbird 149, and Thunderbird 140.9."
}
],
"providerMetadata": {
"dateUpdated": "2026-04-13T13:48:45.652Z",
"orgId": "f16b083a-5664-49f3-a51e-8d479e5ed7fe",
"shortName": "mozilla"
},
"references": [
{
"url": "https://bugzilla.mozilla.org/show_bug.cgi?id=2017643"
},
{
"url": "https://www.mozilla.org/security/advisories/mfsa2026-20/"
},
{
"url": "https://www.mozilla.org/security/advisories/mfsa2026-21/"
},
{
"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": "Sandbox escape in the Responsive Design Mode component"
}
},
"cveMetadata": {
"assignerOrgId": "f16b083a-5664-49f3-a51e-8d479e5ed7fe",
"assignerShortName": "mozilla",
"cveId": "CVE-2026-4692",
"datePublished": "2026-03-24T12:30:24.864Z",
"dateReserved": "2026-03-23T23:21:46.185Z",
"dateUpdated": "2026-04-13T13:48:45.652Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2026-4693 (GCVE-0-2026-4693)
Vulnerability from cvelistv5 – Published: 2026-03-24 12:30 – Updated: 2026-05-07 14:51
VLAI
EPSS
Title
Incorrect boundary conditions in the Audio/Video: Playback component
Summary
Incorrect boundary conditions in the Audio/Video: Playback component. This vulnerability was fixed in Firefox 149, Firefox ESR 115.34, Firefox ESR 140.9, Thunderbird 149, and Thunderbird 140.9.
Severity
7.5 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-754 - Improper Check for Unusual or Exceptional Conditions
Assigner
References
6 references
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Mozilla | Firefox |
Unaffected:
115.34 , ≤ 115.*
(rpm)
Unaffected: 140.9 , ≤ 140.* (rpm) Unaffected: 149 , ≤ * (rpm) |
|
| Mozilla | Thunderbird |
Unaffected:
140.9 , ≤ 140.*
(rpm)
Unaffected: 149 , ≤ * (rpm) |
Credits
Sajeeb Lohani
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CVE-2026-4694 (GCVE-0-2026-4694)
Vulnerability from cvelistv5 – Published: 2026-03-24 12:30 – Updated: 2026-05-07 14:51
VLAI
EPSS
Title
Incorrect boundary conditions, integer overflow in the Graphics component
Summary
Incorrect boundary conditions, integer overflow in the Graphics component. This vulnerability was fixed in Firefox 149, Firefox ESR 115.34, Firefox ESR 140.9, Thunderbird 149, and Thunderbird 140.9.
Severity
7.5 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-754 - Improper Check for Unusual or Exceptional Conditions
Assigner
References
6 references
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Mozilla | Firefox |
Unaffected:
115.34 , ≤ 115.*
(rpm)
Unaffected: 140.9 , ≤ 140.* (rpm) Unaffected: 149 , ≤ * (rpm) |
|
| Mozilla | Thunderbird |
Unaffected:
140.9 , ≤ 140.*
(rpm)
Unaffected: 149 , ≤ * (rpm) |
Credits
Sajeeb Lohani
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CVE-2026-4695 (GCVE-0-2026-4695)
Vulnerability from cvelistv5 – Published: 2026-03-24 12:30 – Updated: 2026-05-07 14:51
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 was fixed in Firefox 149, Firefox ESR 140.9, Thunderbird 149, and Thunderbird 140.9.
Severity
7.5 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-754 - Improper Check for Unusual or Exceptional Conditions
Assigner
References
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Mozilla | Firefox |
Unaffected:
140.9 , ≤ 140.*
(rpm)
Unaffected: 149 , ≤ * (rpm) |
|
| Mozilla | Thunderbird |
Unaffected:
140.9 , ≤ 140.*
(rpm)
Unaffected: 149 , ≤ * (rpm) |
Credits
Atte Kettunen
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CVE-2026-4696 (GCVE-0-2026-4696)
Vulnerability from cvelistv5 – Published: 2026-03-24 12:30 – Updated: 2026-05-07 14:52
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 was fixed in Firefox 149, Firefox ESR 115.34, Firefox ESR 140.9, Thunderbird 149, and Thunderbird 140.9.
Severity
9.8 (Critical)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
- CWE-416 - Use After Free
Assigner
References
6 references
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Mozilla | Firefox |
Unaffected:
115.34 , ≤ 115.*
(rpm)
Unaffected: 140.9 , ≤ 140.* (rpm) Unaffected: 149 , ≤ * (rpm) |
|
| Mozilla | Thunderbird |
Unaffected:
140.9 , ≤ 140.*
(rpm)
Unaffected: 149 , ≤ * (rpm) |
Credits
Sota Wada
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CVE-2026-4697 (GCVE-0-2026-4697)
Vulnerability from cvelistv5 – Published: 2026-03-24 12:30 – Updated: 2026-05-07 14:52
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 was fixed in Firefox 149, Firefox ESR 140.9, Thunderbird 149, and Thunderbird 140.9.
Severity
7.5 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-754 - Improper Check for Unusual or Exceptional Conditions
Assigner
References
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Mozilla | Firefox |
Unaffected:
140.9 , ≤ 140.*
(rpm)
Unaffected: 149 , ≤ * (rpm) |
|
| Mozilla | Thunderbird |
Unaffected:
140.9 , ≤ 140.*
(rpm)
Unaffected: 149 , ≤ * (rpm) |
Credits
Lorenzo
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CVE-2026-4698 (GCVE-0-2026-4698)
Vulnerability from cvelistv5 – Published: 2026-03-24 12:30 – Updated: 2026-05-22 12:47
VLAI
EPSS
Title
JIT miscompilation in the JavaScript Engine: JIT component
Summary
JIT miscompilation in the JavaScript Engine: JIT component. This vulnerability was fixed in Firefox 149, Firefox ESR 115.34, Firefox ESR 140.9, Thunderbird 149, and Thunderbird 140.9.
Severity
8.8 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
- CWE-843 - Access of Resource Using Incompatible Type ('Type Confusion')
Assigner
References
6 references
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Mozilla | Firefox |
Unaffected:
115.34 , ≤ 115.*
(rpm)
Unaffected: 140.9 , ≤ 140.* (rpm) Unaffected: 149 , ≤ * (rpm) |
|
| Mozilla | Thunderbird |
Unaffected:
140.9 , ≤ 140.*
(rpm)
Unaffected: 149 , ≤ * (rpm) |
Credits
maxpl0it working with Trend Micro Zero Day Initiative
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CVE-2026-4699 (GCVE-0-2026-4699)
Vulnerability from cvelistv5 – Published: 2026-03-24 12:30 – Updated: 2026-05-12 16:52
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 was fixed in Firefox 149, Firefox ESR 115.34, Firefox ESR 140.9, Thunderbird 149, and Thunderbird 140.9.
Severity
7.5 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-754 - Improper Check for Unusual or Exceptional Conditions
Assigner
References
6 references
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Mozilla | Firefox |
Unaffected:
115.34 , ≤ 115.*
(rpm)
Unaffected: 140.9 , ≤ 140.* (rpm) Unaffected: 149 , ≤ * (rpm) |
|
| Mozilla | Thunderbird |
Unaffected:
140.9 , ≤ 140.*
(rpm)
Unaffected: 149 , ≤ * (rpm) |
Credits
Matej Smycka
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CVE-2026-4700 (GCVE-0-2026-4700)
Vulnerability from cvelistv5 – Published: 2026-03-24 12:30 – Updated: 2026-05-12 16:53
VLAI
EPSS
Title
Mitigation bypass in the Networking: HTTP component
Summary
Mitigation bypass in the Networking: HTTP component. This vulnerability was fixed in Firefox 149, Firefox ESR 140.9, Thunderbird 149, and Thunderbird 140.9.
Severity
9.8 (Critical)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
- CWE-288 - Authentication Bypass Using an Alternate Path or Channel
Assigner
References
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Mozilla | Firefox |
Unaffected:
140.9 , ≤ 140.*
(rpm)
Unaffected: 149 , ≤ * (rpm) |
|
| Mozilla | Thunderbird |
Unaffected:
140.9 , ≤ 140.*
(rpm)
Unaffected: 149 , ≤ * (rpm) |
Credits
pizzahunthack1
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Loading…
Trend slope:
-
(linear fit over daily sighting counts)
Show additional events:
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
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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