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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-2026-4712 (GCVE-0-2026-4712)
Vulnerability from cvelistv5 – Published: 2026-03-24 12:30 – Updated: 2026-04-13 13:50
VLAI
EPSS
Title
Information disclosure in the Widget: Cocoa component
Summary
Information disclosure in the Widget: Cocoa 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-200 - Exposure of Sensitive Information to an Unauthorized Actor
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
Josh Aas
{
"containers": {
"adp": [
{
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 7.5,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
"version": "3.1"
}
},
{
"other": {
"content": {
"id": "CVE-2026-4712",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "yes"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-03-25T17:49:31.267492Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-200",
"description": "CWE-200 Exposure of Sensitive Information to an Unauthorized Actor",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-03-25T18:08:03.408Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"product": "Firefox",
"vendor": "Mozilla",
"versions": [
{
"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": "Josh Aas"
}
],
"descriptions": [
{
"lang": "en",
"supportingMedia": [
{
"base64": false,
"type": "text/html",
"value": "Information disclosure in the Widget: Cocoa component. This vulnerability was fixed in Firefox 149, Firefox ESR 140.9, Thunderbird 149, and Thunderbird 140.9."
}
],
"value": "Information disclosure in the Widget: Cocoa component. This vulnerability was fixed in Firefox 149, Firefox ESR 140.9, Thunderbird 149, and Thunderbird 140.9."
}
],
"providerMetadata": {
"dateUpdated": "2026-04-13T13:50:52.664Z",
"orgId": "f16b083a-5664-49f3-a51e-8d479e5ed7fe",
"shortName": "mozilla"
},
"references": [
{
"url": "https://bugzilla.mozilla.org/show_bug.cgi?id=2017666"
},
{
"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": "Information disclosure in the Widget: Cocoa component"
}
},
"cveMetadata": {
"assignerOrgId": "f16b083a-5664-49f3-a51e-8d479e5ed7fe",
"assignerShortName": "mozilla",
"cveId": "CVE-2026-4712",
"datePublished": "2026-03-24T12:30:37.333Z",
"dateReserved": "2026-03-23T23:22:25.868Z",
"dateUpdated": "2026-04-13T13:50:52.664Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2026-4713 (GCVE-0-2026-4713)
Vulnerability from cvelistv5 – Published: 2026-03-24 12:30 – Updated: 2026-04-13 13:50
VLAI
EPSS
Title
Incorrect boundary conditions in the Graphics component
Summary
Incorrect boundary conditions in the Graphics 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
Sajeeb Lohani
{
"containers": {
"adp": [
{
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 7.5,
"baseSeverity": "HIGH",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"version": "3.1"
}
},
{
"other": {
"content": {
"id": "CVE-2026-4713",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "yes"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-03-25T16:13:05.618870Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-754",
"description": "CWE-754 Improper Check for Unusual or Exceptional Conditions",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-03-25T16:13:37.918Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"product": "Firefox",
"vendor": "Mozilla",
"versions": [
{
"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": "Sajeeb Lohani"
}
],
"descriptions": [
{
"lang": "en",
"supportingMedia": [
{
"base64": false,
"type": "text/html",
"value": "Incorrect boundary conditions in the Graphics component. This vulnerability was fixed in Firefox 149, Firefox ESR 140.9, Thunderbird 149, and Thunderbird 140.9."
}
],
"value": "Incorrect boundary conditions in the Graphics component. This vulnerability was fixed in Firefox 149, Firefox ESR 140.9, Thunderbird 149, and Thunderbird 140.9."
}
],
"providerMetadata": {
"dateUpdated": "2026-04-13T13:50:54.808Z",
"orgId": "f16b083a-5664-49f3-a51e-8d479e5ed7fe",
"shortName": "mozilla"
},
"references": [
{
"url": "https://bugzilla.mozilla.org/show_bug.cgi?id=2018113"
},
{
"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 Graphics component"
}
},
"cveMetadata": {
"assignerOrgId": "f16b083a-5664-49f3-a51e-8d479e5ed7fe",
"assignerShortName": "mozilla",
"cveId": "CVE-2026-4713",
"datePublished": "2026-03-24T12:30:37.800Z",
"dateReserved": "2026-03-23T23:22:27.865Z",
"dateUpdated": "2026-04-13T13:50:54.808Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2026-4714 (GCVE-0-2026-4714)
Vulnerability from cvelistv5 – Published: 2026-03-24 12:30 – Updated: 2026-04-13 13:50
VLAI
EPSS
Title
Incorrect boundary conditions in the Audio/Video component
Summary
Incorrect boundary conditions in the Audio/Video 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
Sajeeb Lohani
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CVE-2026-4715 (GCVE-0-2026-4715)
Vulnerability from cvelistv5 – Published: 2026-03-24 12:30 – Updated: 2026-04-13 13:50
VLAI
EPSS
Title
Uninitialized memory in the Graphics: Canvas2D component
Summary
Uninitialized memory in the Graphics: Canvas2D component. This vulnerability was fixed in Firefox 149, Firefox ESR 140.9, Thunderbird 149, and Thunderbird 140.9.
Severity
9.1 (Critical)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-908 - Use of Uninitialized Resource
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
Jun Yang
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CVE-2026-4716 (GCVE-0-2026-4716)
Vulnerability from cvelistv5 – Published: 2026-03-24 12:30 – Updated: 2026-04-13 13:51
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 was fixed in Firefox 149, Firefox ESR 140.9, Thunderbird 149, and Thunderbird 140.9.
Severity
9.1 (Critical)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-908 - Use of Uninitialized Resource
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
Pwn2addr
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CVE-2026-4717 (GCVE-0-2026-4717)
Vulnerability from cvelistv5 – Published: 2026-03-24 12:30 – Updated: 2026-04-13 13:51
VLAI
EPSS
Title
Privilege escalation in the Netmonitor component
Summary
Privilege escalation in the Netmonitor 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)
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
Satoki Tsuji
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CVE-2026-4718 (GCVE-0-2026-4718)
Vulnerability from cvelistv5 – Published: 2026-03-24 12:30 – Updated: 2026-04-13 13:51
VLAI
EPSS
Title
Undefined behavior in the WebRTC: Signaling component
Summary
Undefined behavior in the WebRTC: Signaling component. This vulnerability was fixed in Firefox 149, Firefox ESR 140.9, Thunderbird 149, and Thunderbird 140.9.
Severity
8.1 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
- CWE-758 - Reliance on Undefined, Unspecified, or Implementation-Defined Behavior
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
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-2026-4719 (GCVE-0-2026-4719)
Vulnerability from cvelistv5 – Published: 2026-03-24 12:30 – Updated: 2026-04-13 13:51
VLAI
EPSS
Title
Incorrect boundary conditions in the Graphics: Text component
Summary
Incorrect boundary conditions in the Graphics: Text 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-119 - Improper Restriction of Operations within the Bounds of a Memory Buffer
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
Sajeeb Lohani
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CVE-2026-4720 (GCVE-0-2026-4720)
Vulnerability from cvelistv5 – Published: 2026-03-24 12:30 – Updated: 2026-04-13 13:51
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 was fixed in Firefox 149, Firefox ESR 140.9, Thunderbird 149, and Thunderbird 140.9.
Severity
9.8 (Critical)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
- CWE-120 - Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
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
Christian Holler, Gabriele Svelto, Tom Schuster and the Mozilla Fuzzing Team
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CVE-2026-4721 (GCVE-0-2026-4721)
Vulnerability from cvelistv5 – Published: 2026-03-24 12:30 – Updated: 2026-04-13 13:51
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 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: no
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
- CWE-120 - Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
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
Christian Holler, Timothy Nikkel, Tom Schuster and the Mozilla Fuzzing Team
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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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