Action not permitted
Modal body text goes here.
Modal Title
Modal Body
CERTFR-2026-AVI-1244
Vulnerability from certfr_avis - Published: 2026-10-01 - Updated: 2026-10-01
De multiples vulnérabilités ont été découvertes dans Mozilla Thunderbird. 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 | Thunderbird | Thunderbird versions antérieures à 157 | ||
| Mozilla | Thunderbird | Thunderbird versions antérieures à 140.17 | ||
| Mozilla | Thunderbird | Thunderbird versions antérieures à 153.4 |
References
| Title | Publication Time | Tags | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||
{
"$ref": "https://www.cert.ssi.gouv.fr/openapi.json",
"affected_systems": [
{
"description": "Thunderbird versions ant\u00e9rieures \u00e0 157",
"product": {
"name": "Thunderbird",
"vendor": {
"name": "Mozilla",
"scada": false
}
}
},
{
"description": "Thunderbird versions ant\u00e9rieures \u00e0 140.17",
"product": {
"name": "Thunderbird",
"vendor": {
"name": "Mozilla",
"scada": false
}
}
},
{
"description": "Thunderbird versions ant\u00e9rieures \u00e0 153.4",
"product": {
"name": "Thunderbird",
"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-2026-103500",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-103500"
},
{
"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-2026-100777",
"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": "2026-10-01T00:00:00",
"last_revision_date": "2026-10-01T00:00:00",
"links": [],
"reference": "CERTFR-2026-AVI-1244",
"revisions": [
{
"description": "Version initiale",
"revision_date": "2026-10-01T00:00:00.000000"
}
],
"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 Mozilla Thunderbird. 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 Mozilla Thunderbird",
"vendor_advisories": [
{
"published_at": "2026-09-30",
"title": "Bulletin de s\u00e9curit\u00e9 Mozilla mfsa2026-101",
"url": "https://www.mozilla.org/en-US/security/advisories/mfsa2026-101/"
},
{
"published_at": "2026-09-30",
"title": "Bulletin de s\u00e9curit\u00e9 Mozilla mfsa2026-103",
"url": "https://www.mozilla.org/en-US/security/advisories/mfsa2026-103/"
},
{
"published_at": "2026-09-30",
"title": "Bulletin de s\u00e9curit\u00e9 Mozilla mfsa2026-102",
"url": "https://www.mozilla.org/en-US/security/advisories/mfsa2026-102/"
}
]
}
CVE-2026-100756 (GCVE-0-2026-100756)
Vulnerability from cvelistv5 – Published: 2026-09-29 12:35 – Updated: 2026-09-30 19:47
VLAI
EPSS
VEX
Title
Incorrect boundary conditions in the Audio/Video: Playback component
Summary
Incorrect boundary conditions in the Audio/Video: Playback component. This vulnerability was fixed in Firefox 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 2026-09-30 19:47 UTC
CWE
- CWE-119 - Improper Restriction of Operations within the Bounds of a Memory Buffer
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": 8.1,
"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:N",
"version": "3.1"
}
},
{
"other": {
"content": {
"id": "CVE-2026-100756",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "total"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-09-30T19:47:01.045014Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-119",
"description": "CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-09-30T19:47:05.596Z",
"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": "Incorrect boundary conditions in the Audio/Video: Playback 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": "Incorrect boundary conditions in the Audio/Video: Playback 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": "2026-09-30T17:19:57.446Z",
"orgId": "f16b083a-5664-49f3-a51e-8d479e5ed7fe",
"shortName": "mozilla"
},
"references": [
{
"url": "https://bugzilla.mozilla.org/show_bug.cgi?id=2047721"
},
{
"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": "Incorrect boundary conditions in the Audio/Video: Playback component"
}
},
"cveMetadata": {
"assignerOrgId": "f16b083a-5664-49f3-a51e-8d479e5ed7fe",
"assignerShortName": "mozilla",
"cveId": "CVE-2026-100756",
"datePublished": "2026-09-29T12:35:52.765Z",
"dateReserved": "2026-09-26T19:15:13.788Z",
"dateUpdated": "2026-09-30T19:47:05.596Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2026-100757 (GCVE-0-2026-100757)
Vulnerability from cvelistv5 – Published: 2026-09-29 12:35 – Updated: 2026-09-30 17:19
VLAI
EPSS
VEX
Title
Use-after-free in the Widget component
Summary
Use-after-free in the Widget 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
{
"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-2026-100757",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "total"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-09-29T00:00:00+00:00",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-416",
"description": "CWE-416 Use After Free",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-09-30T03:56:30.833Z",
"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": "Mohamed Mbarek"
}
],
"descriptions": [
{
"lang": "en",
"supportingMedia": [
{
"base64": false,
"type": "text/html",
"value": "Use-after-free in the Widget 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": "Use-after-free in the Widget 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": "2026-09-30T17:19:58.761Z",
"orgId": "f16b083a-5664-49f3-a51e-8d479e5ed7fe",
"shortName": "mozilla"
},
"references": [
{
"url": "https://bugzilla.mozilla.org/show_bug.cgi?id=2049352"
},
{
"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": "Use-after-free in the Widget component"
}
},
"cveMetadata": {
"assignerOrgId": "f16b083a-5664-49f3-a51e-8d479e5ed7fe",
"assignerShortName": "mozilla",
"cveId": "CVE-2026-100757",
"datePublished": "2026-09-29T12:35:53.396Z",
"dateReserved": "2026-09-26T19:15:14.718Z",
"dateUpdated": "2026-09-30T17:19:58.761Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2026-100758 (GCVE-0-2026-100758)
Vulnerability from cvelistv5 – Published: 2026-09-29 12:35 – Updated: 2026-09-30 19:46
VLAI
EPSS
VEX
Title
Sandbox escape in the DOM: Navigation component
Summary
Sandbox escape in the DOM: Navigation 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 2026-09-30 19:45 UTC
CWE
- CWE-284 - Improper Access Control
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": "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-2026-100758",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "total"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-09-30T19:45:55.974454Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-284",
"description": "CWE-284 Improper Access Control",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-09-30T19:46:01.024Z",
"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 DOM: Navigation 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 DOM: Navigation 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": "2026-09-30T17:20:00.076Z",
"orgId": "f16b083a-5664-49f3-a51e-8d479e5ed7fe",
"shortName": "mozilla"
},
"references": [
{
"url": "https://bugzilla.mozilla.org/show_bug.cgi?id=2049792"
},
{
"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 DOM: Navigation component"
}
},
"cveMetadata": {
"assignerOrgId": "f16b083a-5664-49f3-a51e-8d479e5ed7fe",
"assignerShortName": "mozilla",
"cveId": "CVE-2026-100758",
"datePublished": "2026-09-29T12:35:53.998Z",
"dateReserved": "2026-09-26T19:15:15.623Z",
"dateUpdated": "2026-09-30T19:46:01.024Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2026-100759 (GCVE-0-2026-100759)
Vulnerability from cvelistv5 – Published: 2026-09-29 12:35 – Updated: 2026-10-01 14:29
VLAI
EPSS
VEX
Title
Uninitialized memory in the Storage: Quota Manager component
Summary
Uninitialized memory in the Storage: Quota Manager 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 14:29 UTC
CWE
- CWE-457 - Use of Uninitialized Variable
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": 8.1,
"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:N",
"version": "3.1"
}
},
{
"other": {
"content": {
"id": "CVE-2026-100759",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "total"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-10-01T14:29:06.576097Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-457",
"description": "CWE-457 Use of Uninitialized Variable",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-10-01T14:29:44.508Z",
"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": "Uninitialized memory in the Storage: Quota Manager 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": "Uninitialized memory in the Storage: Quota Manager 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": "2026-09-30T17:20:01.360Z",
"orgId": "f16b083a-5664-49f3-a51e-8d479e5ed7fe",
"shortName": "mozilla"
},
"references": [
{
"url": "https://bugzilla.mozilla.org/show_bug.cgi?id=2054736"
},
{
"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": "Uninitialized memory in the Storage: Quota Manager component"
}
},
"cveMetadata": {
"assignerOrgId": "f16b083a-5664-49f3-a51e-8d479e5ed7fe",
"assignerShortName": "mozilla",
"cveId": "CVE-2026-100759",
"datePublished": "2026-09-29T12:35:54.685Z",
"dateReserved": "2026-09-26T19:15:16.495Z",
"dateUpdated": "2026-10-01T14:29:44.508Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2026-100760 (GCVE-0-2026-100760)
Vulnerability from cvelistv5 – Published: 2026-09-29 12:35 – Updated: 2026-10-01 14:33
VLAI
EPSS
VEX
Title
Sandbox escape in the Security: Process Sandboxing component
Summary
Sandbox escape in the Security: Process Sandboxing component. This vulnerability was fixed in Firefox ESR 153.4, Thunderbird 157, Thunderbird 153.4, and Firefox 157.
Severity
9.6 (Critical)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-01 14:33 UTC
CWE
- CWE-693 - Protection Mechanism Failure
Assigner
References
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Mozilla | Firefox |
Unaffected:
153.4 , ≤ 153.*
(rpm)
Unaffected: 157 , ≤ * (rpm) |
|
| Mozilla | Thunderbird |
Unaffected:
153.4 , ≤ 153.*
(rpm)
Unaffected: 157 , ≤ * (rpm) |
Credits
{
"containers": {
"adp": [
{
"metrics": [
{
"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-2026-100760",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "total"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-10-01T14:33:06.189427Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-693",
"description": "CWE-693 Protection Mechanism Failure",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-10-01T14:33:19.038Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"product": "Firefox",
"vendor": "Mozilla",
"versions": [
{
"lessThanOrEqual": "153.*",
"status": "unaffected",
"version": "153.4",
"versionType": "rpm"
},
{
"lessThanOrEqual": "*",
"status": "unaffected",
"version": "157",
"versionType": "rpm"
}
]
},
{
"product": "Thunderbird",
"vendor": "Mozilla",
"versions": [
{
"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 Security: Process Sandboxing component. This vulnerability was fixed in Firefox ESR 153.4, Thunderbird 157, Thunderbird 153.4, and Firefox 157."
}
],
"value": "Sandbox escape in the Security: Process Sandboxing component. This vulnerability was fixed in Firefox ESR 153.4, Thunderbird 157, Thunderbird 153.4, and Firefox 157."
}
],
"providerMetadata": {
"dateUpdated": "2026-09-30T17:20:51.663Z",
"orgId": "f16b083a-5664-49f3-a51e-8d479e5ed7fe",
"shortName": "mozilla"
},
"references": [
{
"url": "https://bugzilla.mozilla.org/show_bug.cgi?id=2058017"
},
{
"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/mfsa2026-103/"
},
{
"url": "https://www.mozilla.org/security/advisories/mfsa2026-97/"
}
],
"title": "Sandbox escape in the Security: Process Sandboxing component"
}
},
"cveMetadata": {
"assignerOrgId": "f16b083a-5664-49f3-a51e-8d479e5ed7fe",
"assignerShortName": "mozilla",
"cveId": "CVE-2026-100760",
"datePublished": "2026-09-29T12:35:55.260Z",
"dateReserved": "2026-09-26T19:15:17.411Z",
"dateUpdated": "2026-10-01T14:33:19.038Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2026-100761 (GCVE-0-2026-100761)
Vulnerability from cvelistv5 – Published: 2026-09-29 12:35 – Updated: 2026-09-30 17:14
VLAI
EPSS
VEX
Title
Privilege escalation due to use-after-free in the Graphics: WebGPU component
Summary
Privilege escalation due to 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
{
"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-2026-100761",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "total"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-09-29T00:00:00+00:00",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-416",
"description": "CWE-416 Use After Free",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-09-30T03:56:05.745Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"product": "Thunderbird",
"vendor": "Mozilla",
"versions": [
{
"lessThanOrEqual": "*",
"status": "unaffected",
"version": "157",
"versionType": "rpm"
}
]
},
{
"product": "Firefox",
"vendor": "Mozilla",
"versions": [
{
"lessThanOrEqual": "*",
"status": "unaffected",
"version": "157",
"versionType": "rpm"
}
]
}
],
"credits": [
{
"lang": "en",
"value": "Mozilla"
}
],
"descriptions": [
{
"lang": "en",
"supportingMedia": [
{
"base64": false,
"type": "text/html",
"value": "Privilege escalation due to use-after-free in the Graphics: WebGPU component. This vulnerability was fixed in Thunderbird 157 and Firefox 157."
}
],
"value": "Privilege escalation due to use-after-free in the Graphics: WebGPU component. This vulnerability was fixed in Thunderbird 157 and Firefox 157."
}
],
"providerMetadata": {
"dateUpdated": "2026-09-30T17:14:43.220Z",
"orgId": "f16b083a-5664-49f3-a51e-8d479e5ed7fe",
"shortName": "mozilla"
},
"references": [
{
"url": "https://bugzilla.mozilla.org/show_bug.cgi?id=2059020"
},
{
"url": "https://www.mozilla.org/security/advisories/mfsa2026-101/"
},
{
"url": "https://www.mozilla.org/security/advisories/mfsa2026-97/"
}
],
"title": "Privilege escalation due to use-after-free in the Graphics: WebGPU component"
}
},
"cveMetadata": {
"assignerOrgId": "f16b083a-5664-49f3-a51e-8d479e5ed7fe",
"assignerShortName": "mozilla",
"cveId": "CVE-2026-100761",
"datePublished": "2026-09-29T12:35:55.919Z",
"dateReserved": "2026-09-26T19:15:18.342Z",
"dateUpdated": "2026-09-30T17:14:43.220Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2026-100762 (GCVE-0-2026-100762)
Vulnerability from cvelistv5 – Published: 2026-09-29 12:35 – 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
{
"containers": {
"adp": [
{
"metrics": [
{
"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-2026-100762",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "total"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-09-29T16:29:54.431429Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-416",
"description": "CWE-416 Use After Free",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-09-29T16:40:06.477Z",
"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": "Yaqoub Aldurayhim"
}
],
"descriptions": [
{
"lang": "en",
"supportingMedia": [
{
"base64": false,
"type": "text/html",
"value": "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."
}
],
"value": "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."
}
],
"providerMetadata": {
"dateUpdated": "2026-09-30T17:20:02.632Z",
"orgId": "f16b083a-5664-49f3-a51e-8d479e5ed7fe",
"shortName": "mozilla"
},
"references": [
{
"url": "https://bugzilla.mozilla.org/show_bug.cgi?id=2059404"
},
{
"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 due to use-after-free in the DOM: Content Processes component"
}
},
"cveMetadata": {
"assignerOrgId": "f16b083a-5664-49f3-a51e-8d479e5ed7fe",
"assignerShortName": "mozilla",
"cveId": "CVE-2026-100762",
"datePublished": "2026-09-29T12:35:56.448Z",
"dateReserved": "2026-09-26T19:15:19.245Z",
"dateUpdated": "2026-09-30T17:20:02.632Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2026-100763 (GCVE-0-2026-100763)
Vulnerability from cvelistv5 – Published: 2026-09-29 12:35 – Updated: 2026-10-01 14:37
VLAI
EPSS
VEX
Title
Incorrect boundary conditions in the Graphics: WebGPU component
Summary
Incorrect boundary conditions in the Graphics: WebGPU component. This vulnerability was fixed in Thunderbird 157 and Firefox 157.
Severity
9.1 (Critical)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-01 14:36 UTC
CWE
- CWE-119 - Improper Restriction of Operations within the Bounds of a Memory Buffer
Assigner
References
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Mozilla | Thunderbird |
Unaffected:
157 , ≤ *
(rpm)
|
|
| Mozilla | Firefox |
Unaffected:
157 , ≤ *
(rpm)
|
Credits
{
"containers": {
"adp": [
{
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 9.1,
"baseSeverity": "CRITICAL",
"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:H",
"version": "3.1"
}
},
{
"other": {
"content": {
"id": "CVE-2026-100763",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "yes"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-10-01T14:36:38.799871Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-119",
"description": "CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-10-01T14:37:02.997Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"product": "Thunderbird",
"vendor": "Mozilla",
"versions": [
{
"lessThanOrEqual": "*",
"status": "unaffected",
"version": "157",
"versionType": "rpm"
}
]
},
{
"product": "Firefox",
"vendor": "Mozilla",
"versions": [
{
"lessThanOrEqual": "*",
"status": "unaffected",
"version": "157",
"versionType": "rpm"
}
]
}
],
"credits": [
{
"lang": "en",
"value": "Shaheen Fazim"
}
],
"descriptions": [
{
"lang": "en",
"supportingMedia": [
{
"base64": false,
"type": "text/html",
"value": "Incorrect boundary conditions in the Graphics: WebGPU component. This vulnerability was fixed in Thunderbird 157 and Firefox 157."
}
],
"value": "Incorrect boundary conditions in the Graphics: WebGPU component. This vulnerability was fixed in Thunderbird 157 and Firefox 157."
}
],
"providerMetadata": {
"dateUpdated": "2026-09-30T17:14:43.875Z",
"orgId": "f16b083a-5664-49f3-a51e-8d479e5ed7fe",
"shortName": "mozilla"
},
"references": [
{
"url": "https://bugzilla.mozilla.org/show_bug.cgi?id=2059929"
},
{
"url": "https://www.mozilla.org/security/advisories/mfsa2026-101/"
},
{
"url": "https://www.mozilla.org/security/advisories/mfsa2026-97/"
}
],
"title": "Incorrect boundary conditions in the Graphics: WebGPU component"
}
},
"cveMetadata": {
"assignerOrgId": "f16b083a-5664-49f3-a51e-8d479e5ed7fe",
"assignerShortName": "mozilla",
"cveId": "CVE-2026-100763",
"datePublished": "2026-09-29T12:35:56.992Z",
"dateReserved": "2026-09-26T19:15:20.095Z",
"dateUpdated": "2026-10-01T14:37:02.997Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2026-100764 (GCVE-0-2026-100764)
Vulnerability from cvelistv5 – Published: 2026-09-29 12:35 – Updated: 2026-09-30 17:14
VLAI
EPSS
VEX
Title
Privilege escalation due to incorrect boundary conditions in the Graphics: WebGPU component
Summary
Privilege escalation due to incorrect boundary conditions 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-119 - Improper Restriction of Operations within the Bounds of a Memory Buffer
Assigner
References
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Mozilla | Thunderbird |
Unaffected:
157 , ≤ *
(rpm)
|
|
| Mozilla | Firefox |
Unaffected:
157 , ≤ *
(rpm)
|
Credits
{
"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-2026-100764",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "total"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-09-29T00:00:00+00:00",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-119",
"description": "CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-09-30T03:56:03.843Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"product": "Thunderbird",
"vendor": "Mozilla",
"versions": [
{
"lessThanOrEqual": "*",
"status": "unaffected",
"version": "157",
"versionType": "rpm"
}
]
},
{
"product": "Firefox",
"vendor": "Mozilla",
"versions": [
{
"lessThanOrEqual": "*",
"status": "unaffected",
"version": "157",
"versionType": "rpm"
}
]
}
],
"credits": [
{
"lang": "en",
"value": "Mozilla"
}
],
"descriptions": [
{
"lang": "en",
"supportingMedia": [
{
"base64": false,
"type": "text/html",
"value": "Privilege escalation due to incorrect boundary conditions in the Graphics: WebGPU component. This vulnerability was fixed in Thunderbird 157 and Firefox 157."
}
],
"value": "Privilege escalation due to incorrect boundary conditions in the Graphics: WebGPU component. This vulnerability was fixed in Thunderbird 157 and Firefox 157."
}
],
"providerMetadata": {
"dateUpdated": "2026-09-30T17:14:44.206Z",
"orgId": "f16b083a-5664-49f3-a51e-8d479e5ed7fe",
"shortName": "mozilla"
},
"references": [
{
"url": "https://bugzilla.mozilla.org/show_bug.cgi?id=2061290"
},
{
"url": "https://www.mozilla.org/security/advisories/mfsa2026-101/"
},
{
"url": "https://www.mozilla.org/security/advisories/mfsa2026-97/"
}
],
"title": "Privilege escalation due to incorrect boundary conditions in the Graphics: WebGPU component"
}
},
"cveMetadata": {
"assignerOrgId": "f16b083a-5664-49f3-a51e-8d479e5ed7fe",
"assignerShortName": "mozilla",
"cveId": "CVE-2026-100764",
"datePublished": "2026-09-29T12:35:57.559Z",
"dateReserved": "2026-09-26T19:15:20.971Z",
"dateUpdated": "2026-09-30T17:14:44.206Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2026-100765 (GCVE-0-2026-100765)
Vulnerability from cvelistv5 – Published: 2026-09-29 12:35 – 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 153.4, 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 | Firefox |
Unaffected:
153.4 , ≤ 153.*
(rpm)
Unaffected: 157 , ≤ * (rpm) |
|
| Mozilla | Thunderbird |
Unaffected:
153.4 , ≤ 153.*
(rpm)
Unaffected: 157 , ≤ * (rpm) |
Credits
{
"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-2026-100765",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "total"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-09-29T00:00:00+00:00",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-416",
"description": "CWE-416 Use After Free",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-09-30T03:56:30.097Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"product": "Firefox",
"vendor": "Mozilla",
"versions": [
{
"lessThanOrEqual": "153.*",
"status": "unaffected",
"version": "153.4",
"versionType": "rpm"
},
{
"lessThanOrEqual": "*",
"status": "unaffected",
"version": "157",
"versionType": "rpm"
}
]
},
{
"product": "Thunderbird",
"vendor": "Mozilla",
"versions": [
{
"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": "Use-after-free in the JavaScript: WebAssembly component. This vulnerability was fixed in Firefox ESR 153.4, Thunderbird 157, Thunderbird 153.4, and Firefox 157."
}
],
"value": "Use-after-free in the JavaScript: WebAssembly component. This vulnerability was fixed in Firefox ESR 153.4, Thunderbird 157, Thunderbird 153.4, and Firefox 157."
}
],
"providerMetadata": {
"dateUpdated": "2026-09-30T17:20:52.936Z",
"orgId": "f16b083a-5664-49f3-a51e-8d479e5ed7fe",
"shortName": "mozilla"
},
"references": [
{
"url": "https://bugzilla.mozilla.org/show_bug.cgi?id=2061399"
},
{
"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/mfsa2026-103/"
},
{
"url": "https://www.mozilla.org/security/advisories/mfsa2026-97/"
}
],
"title": "Use-after-free in the JavaScript: WebAssembly component"
}
},
"cveMetadata": {
"assignerOrgId": "f16b083a-5664-49f3-a51e-8d479e5ed7fe",
"assignerShortName": "mozilla",
"cveId": "CVE-2026-100765",
"datePublished": "2026-09-29T12:35:58.073Z",
"dateReserved": "2026-09-26T19:15:21.913Z",
"dateUpdated": "2026-09-30T17:20:52.936Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
Loading…
Trend slope:
-
(linear fit over daily sighting counts)
Show additional events:
Loading…
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.
Loading…
Loading…
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.
Loading…
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.
Loading…
Loading…