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CERTFR-2025-AVI-0536
Vulnerability from certfr_avis - Published: 2025-06-25 - Updated: 2025-06-25
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, un déni de service à distance et une atteinte à la confidentialité des données.
Solutions
Se référer au bulletin de sécurité de l'éditeur pour l'obtention des correctifs (cf. section Documentation).
| Vendor | Product | Description | ||
|---|---|---|---|---|
| Mozilla | Firefox ESR | Firefox ESR versions antérieures à 128.12 | ||
| Mozilla | Firefox ESR | Firefox ESR versions antérieures à 115.25 | ||
| Mozilla | Thunderbird | Thunderbird versions antérieures à 140 | ||
| Mozilla | Firefox | Firefox versions antérieures à 140 |
| Title | Publication Time | Tags | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||
{
"$ref": "https://www.cert.ssi.gouv.fr/openapi.json",
"affected_systems": [
{
"description": "Firefox ESR versions ant\u00e9rieures \u00e0 128.12",
"product": {
"name": "Firefox ESR",
"vendor": {
"name": "Mozilla",
"scada": false
}
}
},
{
"description": "Firefox ESR versions ant\u00e9rieures \u00e0 115.25",
"product": {
"name": "Firefox ESR",
"vendor": {
"name": "Mozilla",
"scada": false
}
}
},
{
"description": "Thunderbird versions ant\u00e9rieures \u00e0 140",
"product": {
"name": "Thunderbird",
"vendor": {
"name": "Mozilla",
"scada": false
}
}
},
{
"description": "Firefox versions ant\u00e9rieures \u00e0 140",
"product": {
"name": "Firefox",
"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-2025-6434",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-6434"
},
{
"name": "CVE-2025-6428",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-6428"
},
{
"name": "CVE-2025-6435",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-6435"
},
{
"name": "CVE-2025-6433",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-6433"
},
{
"name": "CVE-2025-6427",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-6427"
},
{
"name": "CVE-2025-6430",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-6430"
},
{
"name": "CVE-2025-6429",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-6429"
},
{
"name": "CVE-2025-6426",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-6426"
},
{
"name": "CVE-2025-6436",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-6436"
},
{
"name": "CVE-2025-6425",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-6425"
},
{
"name": "CVE-2025-6431",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-6431"
},
{
"name": "CVE-2025-6432",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-6432"
},
{
"name": "CVE-2025-6424",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-6424"
}
],
"initial_release_date": "2025-06-25T00:00:00",
"last_revision_date": "2025-06-25T00:00:00",
"links": [],
"reference": "CERTFR-2025-AVI-0536",
"revisions": [
{
"description": "Version initiale",
"revision_date": "2025-06-25T00:00:00.000000"
}
],
"risks": [
{
"description": "D\u00e9ni de service \u00e0 distance"
},
{
"description": "Injection de code indirecte \u00e0 distance (XSS)"
},
{
"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"
}
],
"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, un d\u00e9ni de service \u00e0 distance et une atteinte \u00e0 la confidentialit\u00e9 des donn\u00e9es.",
"title": "Multiples vuln\u00e9rabilit\u00e9s dans les produits Mozilla",
"vendor_advisories": [
{
"published_at": "2025-06-24",
"title": "Bulletin de s\u00e9curit\u00e9 Mozilla mfsa2025-51",
"url": "https://www.mozilla.org/en-US/security/advisories/mfsa2025-51/"
},
{
"published_at": "2025-06-24",
"title": "Bulletin de s\u00e9curit\u00e9 Mozilla mfsa2025-53",
"url": "https://www.mozilla.org/en-US/security/advisories/mfsa2025-53/"
},
{
"published_at": "2025-06-24",
"title": "Bulletin de s\u00e9curit\u00e9 Mozilla mfsa2025-52",
"url": "https://www.mozilla.org/en-US/security/advisories/mfsa2025-52/"
}
]
}
CVE-2025-6424 (GCVE-0-2025-6424)
Vulnerability from cvelistv5 – Published: 2025-06-24 12:27 – Updated: 2026-04-13 14:26- CWE-416 - Use After Free
| Vendor | Product | Version | |
|---|---|---|---|
| Mozilla | Firefox |
Unaffected:
115.25 , ≤ 115.*
(rpm)
Unaffected: 128.12 , ≤ 128.* (rpm) Unaffected: 140 , ≤ * (rpm) |
|
| Mozilla | Thunderbird |
Unaffected:
128.12 , ≤ 128.*
(rpm)
Unaffected: 140 , ≤ * (rpm) |
{
"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-2025-6424",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "yes"
},
{
"Technical Impact": "total"
}
],
"role": "CISA Coordinator",
"timestamp": "2025-06-25T12:36:06.501007Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-416",
"description": "CWE-416 Use After Free",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2025-06-25T12:42:03.245Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
},
{
"providerMetadata": {
"dateUpdated": "2025-11-03T20:06:57.283Z",
"orgId": "af854a3a-2127-422b-91ae-364da2661108",
"shortName": "CVE"
},
"references": [
{
"url": "https://lists.debian.org/debian-lts-announce/2025/07/msg00002.html"
},
{
"url": "https://lists.debian.org/debian-lts-announce/2025/06/msg00029.html"
}
],
"title": "CVE Program Container"
}
],
"cna": {
"affected": [
{
"product": "Firefox",
"vendor": "Mozilla",
"versions": [
{
"lessThanOrEqual": "115.*",
"status": "unaffected",
"version": "115.25",
"versionType": "rpm"
},
{
"lessThanOrEqual": "128.*",
"status": "unaffected",
"version": "128.12",
"versionType": "rpm"
},
{
"lessThanOrEqual": "*",
"status": "unaffected",
"version": "140",
"versionType": "rpm"
}
]
},
{
"product": "Thunderbird",
"vendor": "Mozilla",
"versions": [
{
"lessThanOrEqual": "128.*",
"status": "unaffected",
"version": "128.12",
"versionType": "rpm"
},
{
"lessThanOrEqual": "*",
"status": "unaffected",
"version": "140",
"versionType": "rpm"
}
]
}
],
"credits": [
{
"lang": "en",
"value": "LJP and HexRabbit (DEVCORE Research Team)"
}
],
"descriptions": [
{
"lang": "en",
"supportingMedia": [
{
"base64": false,
"type": "text/html",
"value": "A use-after-free in FontFaceSet resulted in a potentially exploitable crash. This vulnerability was fixed in Firefox 140, Firefox ESR 115.25, Firefox ESR 128.12, Thunderbird 140, and Thunderbird 128.12."
}
],
"value": "A use-after-free in FontFaceSet resulted in a potentially exploitable crash. This vulnerability was fixed in Firefox 140, Firefox ESR 115.25, Firefox ESR 128.12, Thunderbird 140, and Thunderbird 128.12."
}
],
"providerMetadata": {
"dateUpdated": "2026-04-13T14:26:04.861Z",
"orgId": "f16b083a-5664-49f3-a51e-8d479e5ed7fe",
"shortName": "mozilla"
},
"references": [
{
"url": "https://bugzilla.mozilla.org/show_bug.cgi?id=1966423"
},
{
"url": "https://www.mozilla.org/security/advisories/mfsa2025-51/"
},
{
"url": "https://www.mozilla.org/security/advisories/mfsa2025-52/"
},
{
"url": "https://www.mozilla.org/security/advisories/mfsa2025-53/"
},
{
"url": "https://www.mozilla.org/security/advisories/mfsa2025-54/"
},
{
"url": "https://www.mozilla.org/security/advisories/mfsa2025-55/"
}
],
"title": "Use-after-free in FontFaceSet"
}
},
"cveMetadata": {
"assignerOrgId": "f16b083a-5664-49f3-a51e-8d479e5ed7fe",
"assignerShortName": "mozilla",
"cveId": "CVE-2025-6424",
"datePublished": "2025-06-24T12:27:59.669Z",
"dateReserved": "2025-06-20T14:51:26.620Z",
"dateUpdated": "2026-04-13T14:26:04.861Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2025-6425 (GCVE-0-2025-6425)
Vulnerability from cvelistv5 – Published: 2025-06-24 12:27 – Updated: 2026-04-13 14:26- CWE-200 - Exposure of Sensitive Information to an Unauthorized Actor
| Vendor | Product | Version | |
|---|---|---|---|
| Mozilla | Firefox |
Unaffected:
115.25 , ≤ 115.*
(rpm)
Unaffected: 128.12 , ≤ 128.* (rpm) Unaffected: 140 , ≤ * (rpm) |
|
| Mozilla | Thunderbird |
Unaffected:
128.12 , ≤ 128.*
(rpm)
Unaffected: 140 , ≤ * (rpm) |
{
"containers": {
"adp": [
{
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 4.3,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "LOW",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "REQUIRED",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N",
"version": "3.1"
}
},
{
"other": {
"content": {
"id": "CVE-2025-6425",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2025-06-25T14:21:41.910497Z",
"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": "2025-06-25T14:30:48.734Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
},
{
"providerMetadata": {
"dateUpdated": "2025-11-03T20:07:00.354Z",
"orgId": "af854a3a-2127-422b-91ae-364da2661108",
"shortName": "CVE"
},
"references": [
{
"url": "https://lists.debian.org/debian-lts-announce/2025/07/msg00002.html"
},
{
"url": "https://lists.debian.org/debian-lts-announce/2025/06/msg00029.html"
}
],
"title": "CVE Program Container"
}
],
"cna": {
"affected": [
{
"product": "Firefox",
"vendor": "Mozilla",
"versions": [
{
"lessThanOrEqual": "115.*",
"status": "unaffected",
"version": "115.25",
"versionType": "rpm"
},
{
"lessThanOrEqual": "128.*",
"status": "unaffected",
"version": "128.12",
"versionType": "rpm"
},
{
"lessThanOrEqual": "*",
"status": "unaffected",
"version": "140",
"versionType": "rpm"
}
]
},
{
"product": "Thunderbird",
"vendor": "Mozilla",
"versions": [
{
"lessThanOrEqual": "128.*",
"status": "unaffected",
"version": "128.12",
"versionType": "rpm"
},
{
"lessThanOrEqual": "*",
"status": "unaffected",
"version": "140",
"versionType": "rpm"
}
]
}
],
"credits": [
{
"lang": "en",
"value": "Rob Wu"
}
],
"descriptions": [
{
"lang": "en",
"supportingMedia": [
{
"base64": false,
"type": "text/html",
"value": "An attacker who enumerated resources from the WebCompat extension could have obtained a persistent UUID that identified the browser, and persisted between containers and normal/private browsing mode, but not profiles. This vulnerability was fixed in Firefox 140, Firefox ESR 115.25, Firefox ESR 128.12, Thunderbird 140, and Thunderbird 128.12."
}
],
"value": "An attacker who enumerated resources from the WebCompat extension could have obtained a persistent UUID that identified the browser, and persisted between containers and normal/private browsing mode, but not profiles. This vulnerability was fixed in Firefox 140, Firefox ESR 115.25, Firefox ESR 128.12, Thunderbird 140, and Thunderbird 128.12."
}
],
"providerMetadata": {
"dateUpdated": "2026-04-13T14:26:06.659Z",
"orgId": "f16b083a-5664-49f3-a51e-8d479e5ed7fe",
"shortName": "mozilla"
},
"references": [
{
"url": "https://bugzilla.mozilla.org/show_bug.cgi?id=1717672"
},
{
"url": "https://www.mozilla.org/security/advisories/mfsa2025-51/"
},
{
"url": "https://www.mozilla.org/security/advisories/mfsa2025-52/"
},
{
"url": "https://www.mozilla.org/security/advisories/mfsa2025-53/"
},
{
"url": "https://www.mozilla.org/security/advisories/mfsa2025-54/"
},
{
"url": "https://www.mozilla.org/security/advisories/mfsa2025-55/"
}
],
"title": "The WebCompat WebExtension shipped with Firefox exposed a persistent UUID"
}
},
"cveMetadata": {
"assignerOrgId": "f16b083a-5664-49f3-a51e-8d479e5ed7fe",
"assignerShortName": "mozilla",
"cveId": "CVE-2025-6425",
"datePublished": "2025-06-24T12:27:59.987Z",
"dateReserved": "2025-06-20T14:51:28.050Z",
"dateUpdated": "2026-04-13T14:26:06.659Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2025-6426 (GCVE-0-2025-6426)
Vulnerability from cvelistv5 – Published: 2025-06-24 12:28 – Updated: 2026-04-13 14:30- CWE-345 - Insufficient Verification of Data Authenticity
| Vendor | Product | Version | |
|---|---|---|---|
| Mozilla | Firefox |
Unaffected:
128.12 , ≤ 128.*
(rpm)
Unaffected: 140 , ≤ * (rpm) |
|
| Mozilla | Thunderbird |
Unaffected:
128.12 , ≤ 128.*
(rpm)
Unaffected: 140 , ≤ * (rpm) |
{
"containers": {
"adp": [
{
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 8.8,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "REQUIRED",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
"version": "3.1"
}
},
{
"other": {
"content": {
"id": "CVE-2025-6426",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "total"
}
],
"role": "CISA Coordinator",
"timestamp": "2025-06-25T14:21:30.828136Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-345",
"description": "CWE-345 Insufficient Verification of Data Authenticity",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2025-06-25T14:30:17.128Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"product": "Firefox",
"vendor": "Mozilla",
"versions": [
{
"lessThanOrEqual": "128.*",
"status": "unaffected",
"version": "128.12",
"versionType": "rpm"
},
{
"lessThanOrEqual": "*",
"status": "unaffected",
"version": "140",
"versionType": "rpm"
}
]
},
{
"product": "Thunderbird",
"vendor": "Mozilla",
"versions": [
{
"lessThanOrEqual": "128.*",
"status": "unaffected",
"version": "128.12",
"versionType": "rpm"
},
{
"lessThanOrEqual": "*",
"status": "unaffected",
"version": "140",
"versionType": "rpm"
}
]
}
],
"credits": [
{
"lang": "en",
"value": "pwn2car"
}
],
"descriptions": [
{
"lang": "en",
"supportingMedia": [
{
"base64": false,
"type": "text/html",
"value": "The executable file warning did not warn users before opening files with the \u003ccode\u003eterminal\u003c/code\u003e extension. \u003cbr\u003e*This bug only affects Firefox for macOS. Other versions of Firefox are unaffected.*. This vulnerability was fixed in Firefox 140, Firefox ESR 128.12, Thunderbird 140, and Thunderbird 128.12."
}
],
"value": "The executable file warning did not warn users before opening files with the `terminal` extension. \n*This bug only affects Firefox for macOS. Other versions of Firefox are unaffected.*. This vulnerability was fixed in Firefox 140, Firefox ESR 128.12, Thunderbird 140, and Thunderbird 128.12."
}
],
"providerMetadata": {
"dateUpdated": "2026-04-13T14:30:40.735Z",
"orgId": "f16b083a-5664-49f3-a51e-8d479e5ed7fe",
"shortName": "mozilla"
},
"references": [
{
"url": "https://bugzilla.mozilla.org/show_bug.cgi?id=1964385"
},
{
"url": "https://www.mozilla.org/security/advisories/mfsa2025-51/"
},
{
"url": "https://www.mozilla.org/security/advisories/mfsa2025-53/"
},
{
"url": "https://www.mozilla.org/security/advisories/mfsa2025-54/"
},
{
"url": "https://www.mozilla.org/security/advisories/mfsa2025-55/"
}
],
"title": "No warning when opening executable terminal files on macOS"
}
},
"cveMetadata": {
"assignerOrgId": "f16b083a-5664-49f3-a51e-8d479e5ed7fe",
"assignerShortName": "mozilla",
"cveId": "CVE-2025-6426",
"datePublished": "2025-06-24T12:28:00.614Z",
"dateReserved": "2025-06-20T14:51:29.856Z",
"dateUpdated": "2026-04-13T14:30:40.735Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2025-6427 (GCVE-0-2025-6427)
Vulnerability from cvelistv5 – Published: 2025-06-24 12:28 – Updated: 2026-04-13 14:31- CWE-693 - Protection Mechanism Failure
| Vendor | Product | Version | |
|---|---|---|---|
| Mozilla | Firefox |
Unaffected:
140 , ≤ *
(rpm)
|
|
| Mozilla | Thunderbird |
Unaffected:
140 , ≤ *
(rpm)
|
{
"containers": {
"adp": [
{
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 9.1,
"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:N",
"version": "3.1"
}
},
{
"other": {
"content": {
"id": "CVE-2025-6427",
"options": [
{
"Exploitation": "none"
},
{
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CVE-2025-6428 (GCVE-0-2025-6428)
Vulnerability from cvelistv5 – Published: 2025-06-24 12:28 – Updated: 2026-04-13 14:31- CWE-601 - URL Redirection to Untrusted Site ('Open Redirect')
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CVE-2025-6429 (GCVE-0-2025-6429)
Vulnerability from cvelistv5 – Published: 2025-06-24 12:28 – Updated: 2026-04-13 14:30- CWE-116 - Improper Encoding or Escaping of Output
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Unaffected:
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(rpm)
Unaffected: 140 , ≤ * (rpm) |
|
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CVE-2025-6430 (GCVE-0-2025-6430)
Vulnerability from cvelistv5 – Published: 2025-06-24 12:28 – Updated: 2026-04-13 14:30- CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
| Vendor | Product | Version | |
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Unaffected:
128.12 , ≤ 128.*
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Unaffected: 140 , ≤ * (rpm) |
|
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CVE-2025-6431 (GCVE-0-2025-6431)
Vulnerability from cvelistv5 – Published: 2025-06-24 12:28 – Updated: 2026-04-13 14:31- CWE-285 - Improper Authorization
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CVE-2025-6432 (GCVE-0-2025-6432)
Vulnerability from cvelistv5 – Published: 2025-06-24 12:28 – Updated: 2026-04-13 14:31- CWE-200 - Exposure of Sensitive Information to an Unauthorized Actor
| Vendor | Product | Version | |
|---|---|---|---|
| Mozilla | Firefox |
Unaffected:
140 , ≤ *
(rpm)
|
|
| Mozilla | Thunderbird |
Unaffected:
140 , ≤ *
(rpm)
|
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"description": "CWE-200 Exposure of Sensitive Information to an Unauthorized Actor",
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"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2025-06-25T14:26:02.827Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"product": "Firefox",
"vendor": "Mozilla",
"versions": [
{
"lessThanOrEqual": "*",
"status": "unaffected",
"version": "140",
"versionType": "rpm"
}
]
},
{
"product": "Thunderbird",
"vendor": "Mozilla",
"versions": [
{
"lessThanOrEqual": "*",
"status": "unaffected",
"version": "140",
"versionType": "rpm"
}
]
}
],
"credits": [
{
"lang": "en",
"value": "Albert"
}
],
"descriptions": [
{
"lang": "en",
"supportingMedia": [
{
"base64": false,
"type": "text/html",
"value": "When Multi-Account Containers was enabled, DNS requests could have bypassed a SOCKS proxy when the domain name was invalid or the SOCKS proxy was not responding. This vulnerability was fixed in Firefox 140 and Thunderbird 140."
}
],
"value": "When Multi-Account Containers was enabled, DNS requests could have bypassed a SOCKS proxy when the domain name was invalid or the SOCKS proxy was not responding. This vulnerability was fixed in Firefox 140 and Thunderbird 140."
}
],
"providerMetadata": {
"dateUpdated": "2026-04-13T14:31:07.825Z",
"orgId": "f16b083a-5664-49f3-a51e-8d479e5ed7fe",
"shortName": "mozilla"
},
"references": [
{
"url": "https://bugzilla.mozilla.org/show_bug.cgi?id=1943804"
},
{
"url": "https://www.mozilla.org/security/advisories/mfsa2025-51/"
},
{
"url": "https://www.mozilla.org/security/advisories/mfsa2025-54/"
}
],
"title": "DNS Requests leaked outside of a configured SOCKS proxy"
}
},
"cveMetadata": {
"assignerOrgId": "f16b083a-5664-49f3-a51e-8d479e5ed7fe",
"assignerShortName": "mozilla",
"cveId": "CVE-2025-6432",
"datePublished": "2025-06-24T12:28:03.769Z",
"dateReserved": "2025-06-20T14:51:37.854Z",
"dateUpdated": "2026-04-13T14:31:07.825Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2025-6433 (GCVE-0-2025-6433)
Vulnerability from cvelistv5 – Published: 2025-06-24 12:28 – Updated: 2026-04-13 14:31- CWE-295 - Improper Certificate Validation
| Vendor | Product | Version | |
|---|---|---|---|
| Mozilla | Firefox |
Unaffected:
140 , ≤ *
(rpm)
|
|
| Mozilla | Thunderbird |
Unaffected:
140 , ≤ *
(rpm)
|
{
"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-2025-6433",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "yes"
},
{
"Technical Impact": "total"
}
],
"role": "CISA Coordinator",
"timestamp": "2025-06-25T12:31:56.389041Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-295",
"description": "CWE-295 Improper Certificate Validation",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2025-06-25T12:41:50.340Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"product": "Firefox",
"vendor": "Mozilla",
"versions": [
{
"lessThanOrEqual": "*",
"status": "unaffected",
"version": "140",
"versionType": "rpm"
}
]
},
{
"product": "Thunderbird",
"vendor": "Mozilla",
"versions": [
{
"lessThanOrEqual": "*",
"status": "unaffected",
"version": "140",
"versionType": "rpm"
}
]
}
],
"credits": [
{
"lang": "en",
"value": "Simon"
}
],
"descriptions": [
{
"lang": "en",
"supportingMedia": [
{
"base64": false,
"type": "text/html",
"value": "If a user visited a webpage with an invalid TLS certificate, and granted an exception, the webpage was able to provide a WebAuthn challenge that the user would be prompted to complete. This is in violation of the WebAuthN spec which requires \"a secure transport established without errors\". This vulnerability was fixed in Firefox 140 and Thunderbird 140."
}
],
"value": "If a user visited a webpage with an invalid TLS certificate, and granted an exception, the webpage was able to provide a WebAuthn challenge that the user would be prompted to complete. This is in violation of the WebAuthN spec which requires \"a secure transport established without errors\". This vulnerability was fixed in Firefox 140 and Thunderbird 140."
}
],
"providerMetadata": {
"dateUpdated": "2026-04-13T14:31:09.599Z",
"orgId": "f16b083a-5664-49f3-a51e-8d479e5ed7fe",
"shortName": "mozilla"
},
"references": [
{
"url": "https://bugzilla.mozilla.org/show_bug.cgi?id=1954033"
},
{
"url": "https://www.mozilla.org/security/advisories/mfsa2025-51/"
},
{
"url": "https://www.mozilla.org/security/advisories/mfsa2025-54/"
}
],
"title": "WebAuthn would allow a user to sign a challenge on a webpage with an invalid TLS certificate"
}
},
"cveMetadata": {
"assignerOrgId": "f16b083a-5664-49f3-a51e-8d479e5ed7fe",
"assignerShortName": "mozilla",
"cveId": "CVE-2025-6433",
"datePublished": "2025-06-24T12:28:04.065Z",
"dateReserved": "2025-06-20T14:51:39.059Z",
"dateUpdated": "2026-04-13T14:31:09.599Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
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| Author | Source | Type | Date | Other |
|---|
Nomenclature
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