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CERTFR-2026-AVI-1240
Vulnerability from certfr_avis - Published: 2026-09-30 - Updated: 2026-09-30
De multiples vulnérabilités ont été découvertes dans les produits Mozilla. Certaines d'entre elles permettent à un attaquant de provoquer une élévation de privilèges, 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).
Impacted products
| Vendor | Product | Description | ||
|---|---|---|---|---|
| Mozilla | Firefox ESR | Firefox ESR versions antérieures à 140.17 | ||
| Mozilla | Firefox | Firefox versions antérieures à 157 | ||
| Mozilla | Firefox ESR | Firefox ESR versions antérieures à 115.42 | ||
| Mozilla | Firefox ESR | Firefox ESR versions antérieures à 153.4 |
References
| Title | Publication Time | Tags | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||
{
"$ref": "https://www.cert.ssi.gouv.fr/openapi.json",
"affected_systems": [
{
"description": "Firefox ESR versions ant\u00e9rieures \u00e0 140.17",
"product": {
"name": "Firefox ESR",
"vendor": {
"name": "Mozilla",
"scada": false
}
}
},
{
"description": "Firefox versions ant\u00e9rieures \u00e0 157",
"product": {
"name": "Firefox",
"vendor": {
"name": "Mozilla",
"scada": false
}
}
},
{
"description": "Firefox ESR versions ant\u00e9rieures \u00e0 115.42",
"product": {
"name": "Firefox ESR",
"vendor": {
"name": "Mozilla",
"scada": false
}
}
},
{
"description": "Firefox ESR versions ant\u00e9rieures \u00e0 153.4",
"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-2026-100786",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-100786"
},
{
"name": "CVE-2026-100763",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-100763"
},
{
"name": "CVE-2026-100796",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-100796"
},
{
"name": "CVE-2026-100829",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-100829"
},
{
"name": "CVE-2026-100824",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-100824"
},
{
"name": "CVE-2026-100760",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-100760"
},
{
"name": "CVE-2026-100761",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-100761"
},
{
"name": "CVE-2026-100780",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-100780"
},
{
"name": "CVE-2026-100821",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-100821"
},
{
"name": "CVE-2026-100828",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-100828"
},
{
"name": "CVE-2026-100797",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-100797"
},
{
"name": "CVE-2026-100830",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-100830"
},
{
"name": "CVE-2026-100814",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-100814"
},
{
"name": "CVE-2026-100788",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-100788"
},
{
"name": "CVE-2026-100779",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-100779"
},
{
"name": "CVE-2026-100792",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-100792"
},
{
"name": "CVE-2026-100784",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-100784"
},
{
"name": "CVE-2026-100791",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-100791"
},
{
"name": "CVE-2026-100812",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-100812"
},
{
"name": "CVE-2026-100778",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-100778"
},
{
"name": "CVE-2026-100768",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-100768"
},
{
"name": "CVE-2026-100819",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-100819"
},
{
"name": "CVE-2026-100803",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-100803"
},
{
"name": "CVE-2026-100818",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-100818"
},
{
"name": "CVE-2026-100764",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-100764"
},
{
"name": "CVE-2026-100816",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-100816"
},
{
"name": "CVE-2026-100794",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-100794"
},
{
"name": "CVE-2026-100799",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-100799"
},
{
"name": "CVE-2026-100787",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-100787"
},
{
"name": "CVE-2026-100758",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-100758"
},
{
"name": "CVE-2026-100756",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-100756"
},
{
"name": "CVE-2026-100806",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-100806"
},
{
"name": "CVE-2026-100771",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-100771"
},
{
"name": "CVE-2026-100762",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-100762"
},
{
"name": "CVE-2026-100801",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-100801"
},
{
"name": "CVE-2026-100782",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-100782"
},
{
"name": "CVE-2026-100757",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-100757"
},
{
"name": "CVE-2026-100793",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-100793"
},
{
"name": "CVE-2026-100815",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-100815"
},
{
"name": "CVE-2026-100822",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-100822"
},
{
"name": "CVE-2026-100770",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-100770"
},
{
"name": "CVE-2026-100805",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-100805"
},
{
"name": "CVE-2026-100804",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-100804"
},
{
"name": "CVE-2026-100817",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-100817"
},
{
"name": "CVE-2026-100774",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-100774"
},
{
"name": "CVE-2026-100781",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-100781"
},
{
"name": "CVE-2026-96869",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-96869"
},
{
"name": "CVE-2026-92035",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-92035"
},
{
"name": "CVE-2026-100820",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-100820"
},
{
"name": "CVE-2026-100772",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-100772"
},
{
"name": "CVE-2026-100813",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-100813"
},
{
"name": "CVE-2026-100775",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-100775"
},
{
"name": "CVE-2026-100789",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-100789"
},
{
"name": "CVE-2026-100826",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-100826"
},
{
"name": "CVE-2026-100783",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-100783"
},
{
"name": "CVE-2026-100798",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-100798"
},
{
"name": "CVE-2026-100773",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-100773"
},
{
"name": "CVE-2026-100809",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-100809"
},
{
"name": "CVE-2026-100807",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-100807"
},
{
"name": "CVE-2026-100776",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-100776"
},
{
"name": "CVE-2026-100832",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-100832"
},
{
"name": "CVE-2026-100800",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-100800"
},
{
"name": "CVE-2026-100810",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-100810"
},
{
"name": "CVE-2026-100825",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-100825"
},
{
"name": "CVE-2026-100766",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-100766"
},
{
"name": "CVE-2026-100802",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-100802"
},
{
"name": "CVE-2026-100831",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-100831"
},
{
"name": "CVE-2026-100759",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-100759"
},
{
"name": "CVE-2026-100823",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-100823"
},
{
"name": "CVE-2026-100777",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-100777"
},
{
"name": "CVE-2026-100790",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-100790"
},
{
"name": "CVE-2026-100767",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-100767"
},
{
"name": "CVE-2026-100808",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-100808"
},
{
"name": "CVE-2026-100785",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-100785"
},
{
"name": "CVE-2026-100795",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-100795"
},
{
"name": "CVE-2026-100811",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-100811"
},
{
"name": "CVE-2026-100765",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-100765"
},
{
"name": "CVE-2026-100769",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-100769"
}
],
"initial_release_date": "2026-09-30T00:00:00",
"last_revision_date": "2026-09-30T00:00:00",
"links": [],
"reference": "CERTFR-2026-AVI-1240",
"revisions": [
{
"description": "Version initiale",
"revision_date": "2026-09-30T00:00:00.000000"
}
],
"risks": [
{
"description": "D\u00e9ni de service \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 \u00e9l\u00e9vation de privil\u00e8ges, 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": "2026-09-29",
"title": "Bulletin de s\u00e9curit\u00e9 Mozilla mfsa2026-100",
"url": "https://www.mozilla.org/en-US/security/advisories/mfsa2026-100/"
},
{
"published_at": "2026-09-29",
"title": "Bulletin de s\u00e9curit\u00e9 Mozilla mfsa2026-98",
"url": "https://www.mozilla.org/en-US/security/advisories/mfsa2026-98/"
},
{
"published_at": "2026-09-29",
"title": "Bulletin de s\u00e9curit\u00e9 Mozilla mfsa2026-97",
"url": "https://www.mozilla.org/en-US/security/advisories/mfsa2026-97/"
},
{
"published_at": "2026-09-29",
"title": "Bulletin de s\u00e9curit\u00e9 Mozilla mfsa2026-99",
"url": "https://www.mozilla.org/en-US/security/advisories/mfsa2026-99/"
}
]
}
CVE-2026-100766 (GCVE-0-2026-100766)
Vulnerability from cvelistv5 – Published: 2026-09-29 12:35 – Updated: 2026-09-30 17:20
VLAI
EPSS
VEX
Title
Information disclosure in the Networking: JAR component
Summary
Information disclosure in the Networking: JAR component. This vulnerability was fixed in Firefox ESR 153.4, Thunderbird 157, Thunderbird 140.17, Thunderbird 153.4, Firefox 157, Firefox ESR 115.42, and Firefox ESR 140.17.
Severity
4.3 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-29 15:09 UTC
CWE
- CWE-200 - Exposure of Sensitive Information to an Unauthorized Actor
Assigner
References
8 references
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Mozilla | Firefox |
Unaffected:
115.42 , ≤ 115.*
(rpm)
Unaffected: 140.17 , ≤ 140.* (rpm) Unaffected: 153.4 , ≤ 153.* (rpm) Unaffected: 157 , ≤ * (rpm) |
|
| Mozilla | Thunderbird |
Unaffected:
140.17 , ≤ 140.*
(rpm)
Unaffected: 153.4 , ≤ 153.* (rpm) Unaffected: 157 , ≤ * (rpm) |
Credits
{
"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-2026-100766",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-09-29T15:09:26.697827Z",
"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": "2026-09-29T15:09:46.478Z",
"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": "115.42",
"versionType": "rpm"
},
{
"lessThanOrEqual": "140.*",
"status": "unaffected",
"version": "140.17",
"versionType": "rpm"
},
{
"lessThanOrEqual": "153.*",
"status": "unaffected",
"version": "153.4",
"versionType": "rpm"
},
{
"lessThanOrEqual": "*",
"status": "unaffected",
"version": "157",
"versionType": "rpm"
}
]
},
{
"product": "Thunderbird",
"vendor": "Mozilla",
"versions": [
{
"lessThanOrEqual": "140.*",
"status": "unaffected",
"version": "140.17",
"versionType": "rpm"
},
{
"lessThanOrEqual": "153.*",
"status": "unaffected",
"version": "153.4",
"versionType": "rpm"
},
{
"lessThanOrEqual": "*",
"status": "unaffected",
"version": "157",
"versionType": "rpm"
}
]
}
],
"credits": [
{
"lang": "en",
"value": "Mozilla"
}
],
"descriptions": [
{
"lang": "en",
"supportingMedia": [
{
"base64": false,
"type": "text/html",
"value": "Information disclosure in the Networking: JAR component. This vulnerability was fixed in Firefox ESR 153.4, Thunderbird 157, Thunderbird 140.17, Thunderbird 153.4, Firefox 157, Firefox ESR 115.42, and Firefox ESR 140.17."
}
],
"value": "Information disclosure in the Networking: JAR component. This vulnerability was fixed in Firefox ESR 153.4, Thunderbird 157, Thunderbird 140.17, Thunderbird 153.4, Firefox 157, Firefox ESR 115.42, and Firefox ESR 140.17."
}
],
"providerMetadata": {
"dateUpdated": "2026-09-30T17:20:03.915Z",
"orgId": "f16b083a-5664-49f3-a51e-8d479e5ed7fe",
"shortName": "mozilla"
},
"references": [
{
"url": "https://bugzilla.mozilla.org/show_bug.cgi?id=2061526"
},
{
"url": "https://www.mozilla.org/security/advisories/mfsa2026-100/"
},
{
"url": "https://www.mozilla.org/security/advisories/mfsa2026-101/"
},
{
"url": "https://www.mozilla.org/security/advisories/mfsa2026-102/"
},
{
"url": "https://www.mozilla.org/security/advisories/mfsa2026-103/"
},
{
"url": "https://www.mozilla.org/security/advisories/mfsa2026-97/"
},
{
"url": "https://www.mozilla.org/security/advisories/mfsa2026-98/"
},
{
"url": "https://www.mozilla.org/security/advisories/mfsa2026-99/"
}
],
"title": "Information disclosure in the Networking: JAR component"
}
},
"cveMetadata": {
"assignerOrgId": "f16b083a-5664-49f3-a51e-8d479e5ed7fe",
"assignerShortName": "mozilla",
"cveId": "CVE-2026-100766",
"datePublished": "2026-09-29T12:35:58.608Z",
"dateReserved": "2026-09-26T19:15:22.826Z",
"dateUpdated": "2026-09-30T17:20:03.915Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2026-100767 (GCVE-0-2026-100767)
Vulnerability from cvelistv5 – Published: 2026-09-29 12:35 – Updated: 2026-09-30 17:20
VLAI
EPSS
VEX
Title
Use-after-free in the Networking: Cache component
Summary
Use-after-free in the Networking: Cache component. This vulnerability was fixed in Firefox ESR 153.4, Thunderbird 157, Thunderbird 140.17, Thunderbird 153.4, Firefox 157, Firefox ESR 115.42, and Firefox ESR 140.17.
Severity
8.8 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-29 00:00 UTC
CWE
- CWE-416 - Use After Free
Assigner
References
8 references
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Mozilla | Firefox |
Unaffected:
115.42 , ≤ 115.*
(rpm)
Unaffected: 140.17 , ≤ 140.* (rpm) Unaffected: 153.4 , ≤ 153.* (rpm) Unaffected: 157 , ≤ * (rpm) |
|
| Mozilla | Thunderbird |
Unaffected:
140.17 , ≤ 140.*
(rpm)
Unaffected: 153.4 , ≤ 153.* (rpm) Unaffected: 157 , ≤ * (rpm) |
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CVE-2026-100768 (GCVE-0-2026-100768)
Vulnerability from cvelistv5 – Published: 2026-09-29 12:35 – Updated: 2026-09-30 17:14
VLAI
EPSS
VEX
Title
Use-after-free in the Graphics: WebGPU component
Summary
Use-after-free in the Graphics: WebGPU component. This vulnerability was fixed in Thunderbird 157 and Firefox 157.
Severity
8.8 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-29 00:00 UTC
CWE
- CWE-416 - Use After Free
Assigner
References
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Mozilla | Thunderbird |
Unaffected:
157 , ≤ *
(rpm)
|
|
| Mozilla | Firefox |
Unaffected:
157 , ≤ *
(rpm)
|
Credits
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CVE-2026-100769 (GCVE-0-2026-100769)
Vulnerability from cvelistv5 – Published: 2026-09-29 12:36 – Updated: 2026-09-30 17:20
VLAI
EPSS
VEX
Title
Use-after-free in the JavaScript: WebAssembly component
Summary
Use-after-free in the JavaScript: WebAssembly component. This vulnerability was fixed in Firefox ESR 153.4, Thunderbird 157, Thunderbird 140.17, Thunderbird 153.4, Firefox 157, and Firefox ESR 140.17.
Severity
8.8 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-29 00:00 UTC
CWE
- CWE-416 - Use After Free
Assigner
References
7 references
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Mozilla | Thunderbird |
Unaffected:
140.17 , ≤ 140.*
(rpm)
Unaffected: 153.4 , ≤ 153.* (rpm) Unaffected: 157 , ≤ * (rpm) |
|
| Mozilla | Firefox |
Unaffected:
140.17 , ≤ 140.*
(rpm)
Unaffected: 153.4 , ≤ 153.* (rpm) Unaffected: 157 , ≤ * (rpm) |
Credits
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CVE-2026-100770 (GCVE-0-2026-100770)
Vulnerability from cvelistv5 – Published: 2026-09-29 12:36 – Updated: 2026-09-30 17:20
VLAI
EPSS
VEX
Title
Sandbox escape due to use-after-free in the DOM: Content Processes component
Summary
Sandbox escape due to use-after-free in the DOM: Content Processes component. This vulnerability was fixed in Firefox ESR 153.4, Thunderbird 157, Thunderbird 140.17, Thunderbird 153.4, Firefox 157, Firefox ESR 115.42, and Firefox ESR 140.17.
Severity
9.6 (Critical)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-29 16:29 UTC
CWE
- CWE-416 - Use After Free
Assigner
References
8 references
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Mozilla | Firefox |
Unaffected:
115.42 , ≤ 115.*
(rpm)
Unaffected: 140.17 , ≤ 140.* (rpm) Unaffected: 153.4 , ≤ 153.* (rpm) Unaffected: 157 , ≤ * (rpm) |
|
| Mozilla | Thunderbird |
Unaffected:
140.17 , ≤ 140.*
(rpm)
Unaffected: 153.4 , ≤ 153.* (rpm) Unaffected: 157 , ≤ * (rpm) |
Credits
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CVE-2026-100771 (GCVE-0-2026-100771)
Vulnerability from cvelistv5 – Published: 2026-09-29 12:36 – Updated: 2026-10-01 14:39
VLAI
EPSS
VEX
Title
Undefined behavior in the DOM: Streams component
Summary
Undefined behavior in the DOM: Streams component. This vulnerability was fixed in Firefox ESR 153.4, Thunderbird 157, Thunderbird 140.17, Thunderbird 153.4, Firefox 157, Firefox ESR 115.42, and Firefox ESR 140.17.
Severity
8.1 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-01 14:39 UTC
CWE
- CWE-758 - Reliance on Undefined, Unspecified, or Implementation-Defined Behavior
Assigner
References
8 references
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Mozilla | Firefox |
Unaffected:
115.42 , ≤ 115.*
(rpm)
Unaffected: 140.17 , ≤ 140.* (rpm) Unaffected: 153.4 , ≤ 153.* (rpm) Unaffected: 157 , ≤ * (rpm) |
|
| Mozilla | Thunderbird |
Unaffected:
140.17 , ≤ 140.*
(rpm)
Unaffected: 153.4 , ≤ 153.* (rpm) Unaffected: 157 , ≤ * (rpm) |
Credits
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CVE-2026-100772 (GCVE-0-2026-100772)
Vulnerability from cvelistv5 – Published: 2026-09-29 12:36 – Updated: 2026-09-30 17:20
VLAI
EPSS
VEX
Title
Use-after-free in the DOM: Core & HTML component
Summary
Use-after-free in the DOM: Core & HTML component. This vulnerability was fixed in Firefox ESR 153.4, Thunderbird 157, Thunderbird 140.17, Thunderbird 153.4, Firefox 157, and Firefox ESR 140.17.
Severity
8.8 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-29 00:00 UTC
CWE
- CWE-416 - Use After Free
Assigner
References
7 references
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Mozilla | Thunderbird |
Unaffected:
140.17 , ≤ 140.*
(rpm)
Unaffected: 153.4 , ≤ 153.* (rpm) Unaffected: 157 , ≤ * (rpm) |
|
| Mozilla | Firefox |
Unaffected:
140.17 , ≤ 140.*
(rpm)
Unaffected: 153.4 , ≤ 153.* (rpm) Unaffected: 157 , ≤ * (rpm) |
Credits
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CVE-2026-100773 (GCVE-0-2026-100773)
Vulnerability from cvelistv5 – Published: 2026-09-29 12:36 – Updated: 2026-09-30 17:20
VLAI
EPSS
VEX
Title
Use-after-free in the Storage: IndexedDB component
Summary
Use-after-free in the Storage: IndexedDB component. This vulnerability was fixed in Firefox ESR 153.4, Thunderbird 157, Thunderbird 140.17, Thunderbird 153.4, Firefox 157, Firefox ESR 115.42, and Firefox ESR 140.17.
Severity
8.8 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-29 00:00 UTC
CWE
- CWE-416 - Use After Free
Assigner
References
8 references
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Mozilla | Firefox |
Unaffected:
115.42 , ≤ 115.*
(rpm)
Unaffected: 140.17 , ≤ 140.* (rpm) Unaffected: 153.4 , ≤ 153.* (rpm) Unaffected: 157 , ≤ * (rpm) |
|
| Mozilla | Thunderbird |
Unaffected:
140.17 , ≤ 140.*
(rpm)
Unaffected: 153.4 , ≤ 153.* (rpm) Unaffected: 157 , ≤ * (rpm) |
Credits
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CVE-2026-100774 (GCVE-0-2026-100774)
Vulnerability from cvelistv5 – Published: 2026-09-29 12:36 – Updated: 2026-09-30 17:20
VLAI
EPSS
VEX
Title
Use-after-free in the DOM: Core & HTML component
Summary
Use-after-free in the DOM: Core & HTML component. This vulnerability was fixed in Firefox ESR 153.4, Thunderbird 157, Thunderbird 140.17, Thunderbird 153.4, Firefox 157, Firefox ESR 115.42, and Firefox ESR 140.17.
Severity
8.8 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-29 00:00 UTC
CWE
- CWE-416 - Use After Free
Assigner
References
8 references
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Mozilla | Firefox |
Unaffected:
115.42 , ≤ 115.*
(rpm)
Unaffected: 140.17 , ≤ 140.* (rpm) Unaffected: 153.4 , ≤ 153.* (rpm) Unaffected: 157 , ≤ * (rpm) |
|
| Mozilla | Thunderbird |
Unaffected:
140.17 , ≤ 140.*
(rpm)
Unaffected: 153.4 , ≤ 153.* (rpm) Unaffected: 157 , ≤ * (rpm) |
Credits
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CVE-2026-100775 (GCVE-0-2026-100775)
Vulnerability from cvelistv5 – Published: 2026-09-29 12:36 – Updated: 2026-10-01 15:36
VLAI
EPSS
VEX
Title
Sandbox escape in the Graphics component
Summary
Sandbox escape in the Graphics component. This vulnerability was fixed in Firefox ESR 153.4, Thunderbird 157, Thunderbird 140.17, Thunderbird 153.4, Firefox 157, Firefox ESR 115.42, and Firefox ESR 140.17.
Severity
9.6 (Critical)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-01 15:36 UTC
CWE
- CWE-693 - Protection Mechanism Failure
Assigner
References
8 references
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Mozilla | Firefox |
Unaffected:
115.42 , ≤ 115.*
(rpm)
Unaffected: 140.17 , ≤ 140.* (rpm) Unaffected: 153.4 , ≤ 153.* (rpm) Unaffected: 157 , ≤ * (rpm) |
|
| Mozilla | Thunderbird |
Unaffected:
140.17 , ≤ 140.*
(rpm)
Unaffected: 153.4 , ≤ 153.* (rpm) Unaffected: 157 , ≤ * (rpm) |
Credits
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"cvssV3_1": {
"attackComplexity": "LOW",
"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"
}
},
{
"other": {
"content": {
"id": "CVE-2026-100775",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "total"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-10-01T15:36:03.206950Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-693",
"description": "CWE-693 Protection Mechanism Failure",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-10-01T15:36:07.564Z",
"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": "115.42",
"versionType": "rpm"
},
{
"lessThanOrEqual": "140.*",
"status": "unaffected",
"version": "140.17",
"versionType": "rpm"
},
{
"lessThanOrEqual": "153.*",
"status": "unaffected",
"version": "153.4",
"versionType": "rpm"
},
{
"lessThanOrEqual": "*",
"status": "unaffected",
"version": "157",
"versionType": "rpm"
}
]
},
{
"product": "Thunderbird",
"vendor": "Mozilla",
"versions": [
{
"lessThanOrEqual": "140.*",
"status": "unaffected",
"version": "140.17",
"versionType": "rpm"
},
{
"lessThanOrEqual": "153.*",
"status": "unaffected",
"version": "153.4",
"versionType": "rpm"
},
{
"lessThanOrEqual": "*",
"status": "unaffected",
"version": "157",
"versionType": "rpm"
}
]
}
],
"credits": [
{
"lang": "en",
"value": "Mozilla"
}
],
"descriptions": [
{
"lang": "en",
"supportingMedia": [
{
"base64": false,
"type": "text/html",
"value": "Sandbox escape in the Graphics component. This vulnerability was fixed in Firefox ESR 153.4, Thunderbird 157, Thunderbird 140.17, Thunderbird 153.4, Firefox 157, Firefox ESR 115.42, and Firefox ESR 140.17."
}
],
"value": "Sandbox escape in the Graphics component. This vulnerability was fixed in Firefox ESR 153.4, Thunderbird 157, Thunderbird 140.17, Thunderbird 153.4, Firefox 157, Firefox ESR 115.42, and Firefox ESR 140.17."
}
],
"providerMetadata": {
"dateUpdated": "2026-09-30T17:20:14.169Z",
"orgId": "f16b083a-5664-49f3-a51e-8d479e5ed7fe",
"shortName": "mozilla"
},
"references": [
{
"url": "https://bugzilla.mozilla.org/show_bug.cgi?id=2068367"
},
{
"url": "https://www.mozilla.org/security/advisories/mfsa2026-100/"
},
{
"url": "https://www.mozilla.org/security/advisories/mfsa2026-101/"
},
{
"url": "https://www.mozilla.org/security/advisories/mfsa2026-102/"
},
{
"url": "https://www.mozilla.org/security/advisories/mfsa2026-103/"
},
{
"url": "https://www.mozilla.org/security/advisories/mfsa2026-97/"
},
{
"url": "https://www.mozilla.org/security/advisories/mfsa2026-98/"
},
{
"url": "https://www.mozilla.org/security/advisories/mfsa2026-99/"
}
],
"title": "Sandbox escape in the Graphics component"
}
},
"cveMetadata": {
"assignerOrgId": "f16b083a-5664-49f3-a51e-8d479e5ed7fe",
"assignerShortName": "mozilla",
"cveId": "CVE-2026-100775",
"datePublished": "2026-09-29T12:36:03.907Z",
"dateReserved": "2026-09-26T19:15:31.053Z",
"dateUpdated": "2026-10-01T15:36:07.564Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
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Trend slope:
-
(linear fit over daily sighting counts)
Show additional events:
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Drag nodes to arrange them. Double-click a related vulnerability to open it, or a source to visit its link. The Physics button on the left tunes the layout and the simulation; the legend at the bottom left hides or shows nodes by kind and by sighting type.
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.
Vulnerability timeline
Sightings and recorded dates, grouped by day · UTC
How durations are calculated
Following the VTEM framework (Black Hat USA 2015), time to patch starts when the vendor or a coordinator was informed, total time to patch at discovery, and disclosure to patch at public disclosure; vendor response time runs from the report to its acknowledgement. Time to exploit and time unpatched start at the earliest discovery or report, falling back to public disclosure. Unpatched time ends at the first recorded patch, or the calculation time when no patch is recorded. Exploitation to patch shows the interval between those two events; a published proof of concept is a public exploit, not exploitation.
Each result shows its source dates. A negative interval means the end event came first; when date-only inputs leave the order open, the result says so. Date-only inputs are approximate. The earliest evidence wins: KEV report dates and sightings are labelled as such. Records describing another vulnerability are listed but never calculated from, and a PoC alone does not establish exploitation. Missing patch evidence does not prove that no patch exists. Filters below change the event list only.
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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
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Related by attack behaviour
Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.
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