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CERTFR-2026-AVI-0507
Vulnerability from certfr_avis - Published: 2026-04-29 - Updated: 2026-04-29
De multiples vulnérabilités ont été découvertes dans les produits Mozilla. Certaines d'entre elles permettent à un attaquant de provoquer une atteinte à la confidentialité des données, un contournement de la politique de sécurité et un problème de sécurité non spécifié par l'éditeur.
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 ESR | Firefox ESR versions antérieures à 115.35.1 | ||
| Mozilla | Firefox | Firefox versions antérieures à 150.0.1 | ||
| Mozilla | Firefox ESR | Firefox ESR versions antérieures à 140.10.1 |
References
| Title | Publication Time | Tags | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||
{
"$ref": "https://www.cert.ssi.gouv.fr/openapi.json",
"affected_systems": [
{
"description": "Firefox ESR versions ant\u00e9rieures \u00e0 115.35.1",
"product": {
"name": "Firefox ESR",
"vendor": {
"name": "Mozilla",
"scada": false
}
}
},
{
"description": "Firefox versions ant\u00e9rieures \u00e0 150.0.1",
"product": {
"name": "Firefox",
"vendor": {
"name": "Mozilla",
"scada": false
}
}
},
{
"description": "Firefox ESR versions ant\u00e9rieures \u00e0 140.10.1",
"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-2026-7324",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-7324"
},
{
"name": "CVE-2026-7323",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-7323"
},
{
"name": "CVE-2026-7322",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-7322"
},
{
"name": "CVE-2026-7320",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-7320"
},
{
"name": "CVE-2026-7321",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-7321"
}
],
"initial_release_date": "2026-04-29T00:00:00",
"last_revision_date": "2026-04-29T00:00:00",
"links": [],
"reference": "CERTFR-2026-AVI-0507",
"revisions": [
{
"description": "Version initiale",
"revision_date": "2026-04-29T00:00:00.000000"
}
],
"risks": [
{
"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"
}
],
"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 atteinte \u00e0 la confidentialit\u00e9 des donn\u00e9es, un contournement de la politique de s\u00e9curit\u00e9 et un probl\u00e8me de s\u00e9curit\u00e9 non sp\u00e9cifi\u00e9 par l\u0027\u00e9diteur.",
"title": "Multiples vuln\u00e9rabilit\u00e9s dans les produits Mozilla",
"vendor_advisories": [
{
"published_at": "2026-04-28",
"title": "Bulletin de s\u00e9curit\u00e9 Mozilla mfsa2026-37",
"url": "https://www.mozilla.org/en-US/security/advisories/mfsa2026-37/"
},
{
"published_at": "2026-04-28",
"title": "Bulletin de s\u00e9curit\u00e9 Mozilla mfsa2026-35",
"url": "https://www.mozilla.org/en-US/security/advisories/mfsa2026-35/"
},
{
"published_at": "2026-04-28",
"title": "Bulletin de s\u00e9curit\u00e9 Mozilla mfsa2026-36",
"url": "https://www.mozilla.org/en-US/security/advisories/mfsa2026-36/"
}
]
}
CVE-2026-7323 (GCVE-0-2026-7323)
Vulnerability from cvelistv5 – Published: 2026-04-28 13:49 – Updated: 2026-04-28 18:36
VLAI?
EPSS
Title
Memory safety bugs fixed in Firefox ESR 140.10.1 and Firefox 150.0.1
Summary
Memory safety bugs present in Firefox ESR 140.10.0 and Firefox 150.0.0. 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 150.0.1 and Firefox ESR 140.10.1.
Severity ?
7.3 (High)
CWE
Assigner
References
Impacted products
Credits
Ryan Hunt, Steve Fink and the Mozilla Fuzzing Team
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}
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CVE-2026-7324 (GCVE-0-2026-7324)
Vulnerability from cvelistv5 – Published: 2026-04-28 13:49 – Updated: 2026-04-28 18:36
VLAI?
EPSS
Title
Memory safety bugs fixed in Firefox 150.0.1
Summary
Memory safety bugs present in Firefox 150.0.0. 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 150.0.1.
Severity ?
7.3 (High)
CWE
- CWE-119 - Improper Restriction of Operations within the Bounds of a Memory Buffer
Assigner
References
Credits
The Mozilla Fuzzing Team
{
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"confidentialityImpact": "LOW",
"integrityImpact": "LOW",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
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CVE-2026-7322 (GCVE-0-2026-7322)
Vulnerability from cvelistv5 – Published: 2026-04-28 13:49 – Updated: 2026-04-28 18:36
VLAI?
EPSS
Title
Memory safety bugs fixed in Firefox ESR 115.35.1, Firefox ESR 140.10.1 and Firefox 150.0.1
Summary
Memory safety bugs present in Firefox ESR 115.35.0, Firefox ESR 140.10.0 and Firefox 150.0.0. 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 150.0.1, Firefox ESR 140.10.1, and Firefox ESR 115.35.1.
Severity ?
7.3 (High)
CWE
Assigner
References
Impacted products
Credits
C.M.Chang, Christian Holler, Steve Fink and the Mozilla Fuzzing Team
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CVE-2026-7320 (GCVE-0-2026-7320)
Vulnerability from cvelistv5 – Published: 2026-04-28 13:49 – Updated: 2026-04-28 15:45
VLAI?
EPSS
Title
Information disclosure due to incorrect boundary conditions in the Audio/Video component
Summary
Information disclosure due to incorrect boundary conditions in the Audio/Video component. This vulnerability was fixed in Firefox 150.0.1, Firefox ESR 140.10.1, and Firefox ESR 115.35.1.
Severity ?
7.5 (High)
CWE
- CWE-119 - Improper Restriction of Operations within the Bounds of a Memory Buffer
Assigner
References
Impacted products
Credits
Xuehao Guo
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"status": "unaffected",
"version": "140.10.1",
"versionType": "rpm"
},
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"status": "unaffected",
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]
}
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"url": "https://www.mozilla.org/security/advisories/mfsa2026-36/"
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"datePublished": "2026-04-28T13:49:08.262Z",
"dateReserved": "2026-04-28T13:42:15.666Z",
"dateUpdated": "2026-04-28T15:45:17.393Z",
"state": "PUBLISHED"
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CVE-2026-7321 (GCVE-0-2026-7321)
Vulnerability from cvelistv5 – Published: 2026-04-28 13:49 – Updated: 2026-04-29 05:43
VLAI?
EPSS
Title
Sandbox escape due to incorrect boundary conditions in the WebRTC: Networking component
Summary
Sandbox escape due to incorrect boundary conditions in the WebRTC: Networking component. This vulnerability was fixed in Firefox 150, Thunderbird 150, and Firefox ESR 140.10.1.
Severity ?
9.6 (Critical)
CWE
- CWE-120 - Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
Assigner
References
Impacted products
| Vendor | Product | Version | |||||||
|---|---|---|---|---|---|---|---|---|---|
| Mozilla | Firefox |
Unaffected:
140.10.1 , ≤ 140.*
(rpm)
Unaffected: 150 , ≤ * (rpm) |
|||||||
|
|||||||||
Credits
The Mozilla Fuzzing Team
{
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"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 9.6,
"baseSeverity": "CRITICAL",
"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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"references": [
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"url": "https://bugzilla.mozilla.org/show_bug.cgi?id=2029461"
},
{
"url": "https://www.mozilla.org/security/advisories/mfsa2026-30/"
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{
"url": "https://www.mozilla.org/security/advisories/mfsa2026-33/"
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Trend slope:
-
(linear fit over daily sighting counts)
Show additional events:
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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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