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5259 vulnerabilities found for thunderbird by mozilla
CERTFR-2026-AVI-0051
Vulnerability from certfr_avis - Published: 2026-01-15 - Updated: 2026-01-15
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, 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 140.7 | ||
| Mozilla | Firefox ESR | Firefox ESR versions antérieures à 140.7 | ||
| Mozilla | Firefox | Firefox versions antérieures à 147 | ||
| Mozilla | Thunderbird | Thunderbird versions antérieures à 147 |
References
| Title | Publication Time | Tags | ||||||
|---|---|---|---|---|---|---|---|---|
|
||||||||
{
"$ref": "https://www.cert.ssi.gouv.fr/openapi.json",
"affected_systems": [
{
"description": "Thunderbird versions ant\u00e9rieures \u00e0 140.7",
"product": {
"name": "Thunderbird",
"vendor": {
"name": "Mozilla",
"scada": false
}
}
},
{
"description": "Firefox ESR versions ant\u00e9rieures \u00e0 140.7",
"product": {
"name": "Firefox ESR",
"vendor": {
"name": "Mozilla",
"scada": false
}
}
},
{
"description": "Firefox versions ant\u00e9rieures \u00e0 147",
"product": {
"name": "Firefox",
"vendor": {
"name": "Mozilla",
"scada": false
}
}
},
{
"description": "Thunderbird versions ant\u00e9rieures \u00e0 147",
"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-2026-0885",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-0885"
},
{
"name": "CVE-2026-0887",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-0887"
},
{
"name": "CVE-2025-14327",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-14327"
},
{
"name": "CVE-2026-0879",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-0879"
},
{
"name": "CVE-2026-0892",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-0892"
},
{
"name": "CVE-2026-0877",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-0877"
},
{
"name": "CVE-2026-0878",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-0878"
},
{
"name": "CVE-2026-0883",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-0883"
},
{
"name": "CVE-2026-0880",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-0880"
},
{
"name": "CVE-2026-0881",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-0881"
},
{
"name": "CVE-2026-0882",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-0882"
},
{
"name": "CVE-2026-0884",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-0884"
},
{
"name": "CVE-2026-0889",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-0889"
},
{
"name": "CVE-2026-0888",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-0888"
},
{
"name": "CVE-2026-0886",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-0886"
},
{
"name": "CVE-2026-0890",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-0890"
},
{
"name": "CVE-2026-0891",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-0891"
}
],
"initial_release_date": "2026-01-15T00:00:00",
"last_revision_date": "2026-01-15T00:00:00",
"links": [],
"reference": "CERTFR-2026-AVI-0051",
"revisions": [
{
"description": "Version initiale",
"revision_date": "2026-01-15T00:00:00.000000"
}
],
"risks": [
{
"description": "D\u00e9ni de service \u00e0 distance"
},
{
"description": "Ex\u00e9cution de code arbitraire"
},
{
"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, 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": "2026-01-13",
"title": "Bulletin de s\u00e9curit\u00e9 Mozilla mfsa2026-05",
"url": "https://www.mozilla.org/en-US/security/advisories/mfsa2026-05/"
},
{
"published_at": "2026-01-13",
"title": "Bulletin de s\u00e9curit\u00e9 Mozilla mfsa2026-04",
"url": "https://www.mozilla.org/en-US/security/advisories/mfsa2026-04/"
}
]
}
CERTFR-2026-AVI-0038
Vulnerability from certfr_avis - Published: 2026-01-14 - Updated: 2026-01-15
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).
Impacted products
| Vendor | Product | Description | ||
|---|---|---|---|---|
| Mozilla | Firefox ESR | Firefox ESR versions antérieures à 115.32 | ||
| Mozilla | Firefox ESR | Firefox ESR versions antérieures à 140.7 | ||
| Mozilla | Firefox | Firefox versions antérieures à 147 | ||
| Mozilla | Thunderbird | Thunderbird versions antérieures à 147 |
References
| Title | Publication Time | Tags | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||
{
"$ref": "https://www.cert.ssi.gouv.fr/openapi.json",
"affected_systems": [
{
"description": "Firefox ESR versions ant\u00e9rieures \u00e0 115.32",
"product": {
"name": "Firefox ESR",
"vendor": {
"name": "Mozilla",
"scada": false
}
}
},
{
"description": "Firefox ESR versions ant\u00e9rieures \u00e0 140.7",
"product": {
"name": "Firefox ESR",
"vendor": {
"name": "Mozilla",
"scada": false
}
}
},
{
"description": "Firefox versions ant\u00e9rieures \u00e0 147",
"product": {
"name": "Firefox",
"vendor": {
"name": "Mozilla",
"scada": false
}
}
},
{
"description": "Thunderbird versions ant\u00e9rieures \u00e0 147",
"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-2026-0885",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-0885"
},
{
"name": "CVE-2026-0887",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-0887"
},
{
"name": "CVE-2025-14327",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-14327"
},
{
"name": "CVE-2026-0879",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-0879"
},
{
"name": "CVE-2026-0892",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-0892"
},
{
"name": "CVE-2026-0877",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-0877"
},
{
"name": "CVE-2026-0878",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-0878"
},
{
"name": "CVE-2026-0883",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-0883"
},
{
"name": "CVE-2026-0880",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-0880"
},
{
"name": "CVE-2026-0881",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-0881"
},
{
"name": "CVE-2026-0882",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-0882"
},
{
"name": "CVE-2026-0884",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-0884"
},
{
"name": "CVE-2026-0889",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-0889"
},
{
"name": "CVE-2026-0888",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-0888"
},
{
"name": "CVE-2026-0886",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-0886"
},
{
"name": "CVE-2026-0890",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-0890"
},
{
"name": "CVE-2026-0891",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-0891"
}
],
"initial_release_date": "2026-01-14T00:00:00",
"last_revision_date": "2026-01-15T00:00:00",
"links": [],
"reference": "CERTFR-2026-AVI-0038",
"revisions": [
{
"description": "Version initiale",
"revision_date": "2026-01-14T00:00:00.000000"
},
{
"description": "Modification d\u0027un syst\u00e8me afffect\u00e9",
"revision_date": "2026-01-15T00:00:00.000000"
}
],
"risks": [
{
"description": "D\u00e9ni de service \u00e0 distance"
},
{
"description": "Ex\u00e9cution de code arbitraire \u00e0 distance"
},
{
"description": "Non sp\u00e9cifi\u00e9 par l\u0027\u00e9diteur"
},
{
"description": "Contournement de la politique de s\u00e9curit\u00e9"
},
{
"description": "Atteinte \u00e0 la confidentialit\u00e9 des donn\u00e9es"
}
],
"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": "2026-01-13",
"title": "Bulletin de s\u00e9curit\u00e9 Mozilla mfsa2026-03",
"url": "https://www.mozilla.org/en-US/security/advisories/mfsa2026-03/"
},
{
"published_at": "2026-01-13",
"title": "Bulletin de s\u00e9curit\u00e9 Mozilla mfsa2026-02",
"url": "https://www.mozilla.org/en-US/security/advisories/mfsa2026-02/"
},
{
"published_at": "2026-01-13",
"title": "Bulletin de s\u00e9curit\u00e9 Mozilla mfsa2026-01",
"url": "https://www.mozilla.org/en-US/security/advisories/mfsa2026-01/"
}
]
}
CVE-2026-0885 (GCVE-0-2026-0885)
Vulnerability from nvd – Published: 2026-01-13 13:30 – Updated: 2026-01-15 09:31
VLAI?
Title
Use-after-free in the JavaScript: GC component
Summary
Use-after-free in the JavaScript: GC component. This vulnerability affects Firefox < 147, Firefox ESR < 140.7, Thunderbird < 147, and Thunderbird < 140.7.
Severity ?
6.5 (Medium)
CWE
- CWE-416 - Use After Free
Assigner
References
Impacted products
| Vendor | Product | Version | |||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Mozilla | Firefox |
Affected:
unspecified , < 147
(custom)
|
|||||||||||||||||
|
|||||||||||||||||||
Credits
Irvan Kurniawan
{
"containers": {
"adp": [
{
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "LOW",
"baseScore": 6.5,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "LOW",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L",
"version": "3.1"
}
},
{
"other": {
"content": {
"id": "CVE-2026-0885",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "yes"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-01-13T20:24:43.381223Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-416",
"description": "CWE-416 Use After Free",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-01-13T20:25:45.847Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"product": "Firefox",
"vendor": "Mozilla",
"versions": [
{
"lessThan": "147",
"status": "affected",
"version": "unspecified",
"versionType": "custom"
}
]
},
{
"product": "Firefox ESR",
"vendor": "Mozilla",
"versions": [
{
"lessThan": "140.7",
"status": "affected",
"version": "unspecified",
"versionType": "custom"
}
]
},
{
"product": "Thunderbird",
"vendor": "Mozilla",
"versions": [
{
"lessThan": "147",
"status": "affected",
"version": "unspecified",
"versionType": "custom"
}
]
},
{
"product": "Thunderbird",
"vendor": "Mozilla",
"versions": [
{
"lessThan": "140.7",
"status": "affected",
"version": "unspecified",
"versionType": "custom"
}
]
}
],
"credits": [
{
"lang": "en",
"value": "Irvan Kurniawan"
}
],
"descriptions": [
{
"lang": "en",
"supportingMedia": [
{
"base64": false,
"type": "text/html",
"value": "Use-after-free in the JavaScript: GC component. This vulnerability affects Firefox \u003c 147, Firefox ESR \u003c 140.7, Thunderbird \u003c 147, and Thunderbird \u003c 140.7."
}
],
"value": "Use-after-free in the JavaScript: GC component. This vulnerability affects Firefox \u003c 147, Firefox ESR \u003c 140.7, Thunderbird \u003c 147, and Thunderbird \u003c 140.7."
}
],
"providerMetadata": {
"dateUpdated": "2026-01-15T09:31:13.413Z",
"orgId": "f16b083a-5664-49f3-a51e-8d479e5ed7fe",
"shortName": "mozilla"
},
"references": [
{
"url": "https://bugzilla.mozilla.org/show_bug.cgi?id=2003607"
},
{
"url": "https://www.mozilla.org/security/advisories/mfsa2026-01/"
},
{
"url": "https://www.mozilla.org/security/advisories/mfsa2026-03/"
},
{
"url": "https://www.mozilla.org/security/advisories/mfsa2026-04/"
},
{
"url": "https://www.mozilla.org/security/advisories/mfsa2026-05/"
}
],
"title": "Use-after-free in the JavaScript: GC component"
}
},
"cveMetadata": {
"assignerOrgId": "f16b083a-5664-49f3-a51e-8d479e5ed7fe",
"assignerShortName": "mozilla",
"cveId": "CVE-2026-0885",
"datePublished": "2026-01-13T13:30:56.939Z",
"dateReserved": "2026-01-13T13:30:56.753Z",
"dateUpdated": "2026-01-15T09:31:13.413Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2026-0892 (GCVE-0-2026-0892)
Vulnerability from nvd – Published: 2026-01-13 13:30 – Updated: 2026-01-15 09:31
VLAI?
Title
Memory safety bugs fixed in Firefox 147 and Thunderbird 147
Summary
Memory safety bugs present in Firefox 146 and Thunderbird 146. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Firefox < 147 and Thunderbird < 147.
Severity ?
9.8 (Critical)
CWE
- CWE-119 - Improper Restriction of Operations within the Bounds of a Memory Buffer
Assigner
References
Impacted products
| Vendor | Product | Version | |||||||
|---|---|---|---|---|---|---|---|---|---|
| Mozilla | Firefox |
Affected:
unspecified , < 147
(custom)
|
|||||||
|
|||||||||
Credits
Hiroyuki Ikezoe, Jon Coppeard, Maurice Dauer and the Mozilla Fuzzing Team
{
"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-2026-0892",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "yes"
},
{
"Technical Impact": "total"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-01-14T00:00:00+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": "2026-01-15T04:56:03.173Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"product": "Firefox",
"vendor": "Mozilla",
"versions": [
{
"lessThan": "147",
"status": "affected",
"version": "unspecified",
"versionType": "custom"
}
]
},
{
"product": "Thunderbird",
"vendor": "Mozilla",
"versions": [
{
"lessThan": "147",
"status": "affected",
"version": "unspecified",
"versionType": "custom"
}
]
}
],
"credits": [
{
"lang": "en",
"value": "Hiroyuki Ikezoe, Jon Coppeard, Maurice Dauer and the Mozilla Fuzzing Team"
}
],
"descriptions": [
{
"lang": "en",
"supportingMedia": [
{
"base64": false,
"type": "text/html",
"value": "Memory safety bugs present in Firefox 146 and Thunderbird 146. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Firefox \u003c 147 and Thunderbird \u003c 147."
}
],
"value": "Memory safety bugs present in Firefox 146 and Thunderbird 146. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Firefox \u003c 147 and Thunderbird \u003c 147."
}
],
"providerMetadata": {
"dateUpdated": "2026-01-15T09:31:17.329Z",
"orgId": "f16b083a-5664-49f3-a51e-8d479e5ed7fe",
"shortName": "mozilla"
},
"references": [
{
"name": "Memory safety bugs fixed in Firefox 147 and Thunderbird 147",
"url": "https://bugzilla.mozilla.org/buglist.cgi?bug_id=1986912%2C1996718%2C1999633%2C2001081%2C2004443"
},
{
"url": "https://www.mozilla.org/security/advisories/mfsa2026-01/"
},
{
"url": "https://www.mozilla.org/security/advisories/mfsa2026-04/"
}
],
"title": "Memory safety bugs fixed in Firefox 147 and Thunderbird 147"
}
},
"cveMetadata": {
"assignerOrgId": "f16b083a-5664-49f3-a51e-8d479e5ed7fe",
"assignerShortName": "mozilla",
"cveId": "CVE-2026-0892",
"datePublished": "2026-01-13T13:30:59.874Z",
"dateReserved": "2026-01-13T13:30:59.693Z",
"dateUpdated": "2026-01-15T09:31:17.329Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
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CVE-2026-0891 (GCVE-0-2026-0891)
Vulnerability from nvd – Published: 2026-01-13 13:30 – Updated: 2026-01-15 09:31
VLAI?
Title
Memory safety bugs fixed in Firefox ESR 140.7, Thunderbird ESR 140.7, Firefox 147 and Thunderbird 147
Summary
Memory safety bugs present in Firefox ESR 140.6, Thunderbird ESR 140.6, Firefox 146 and Thunderbird 146. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Firefox < 147, Firefox ESR < 140.7, Thunderbird < 147, and Thunderbird < 140.7.
Severity ?
8.1 (High)
CWE
- CWE-119 - Improper Restriction of Operations within the Bounds of a Memory Buffer
Assigner
References
Impacted products
| Vendor | Product | Version | |||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Mozilla | Firefox |
Affected:
unspecified , < 147
(custom)
|
|||||||||||||||||
|
|||||||||||||||||||
Credits
Andrew McCreight, Dennis Jackson and the Mozilla Fuzzing Team
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CVE-2026-0887 (GCVE-0-2026-0887)
Vulnerability from nvd – Published: 2026-01-13 13:30 – Updated: 2026-01-15 15:32
VLAI?
Title
Clickjacking issue, information disclosure in the PDF Viewer component
Summary
Clickjacking issue, information disclosure in the PDF Viewer component. This vulnerability affects Firefox < 147, Firefox ESR < 140.7, Thunderbird < 147, and Thunderbird < 140.7.
Severity ?
4.3 (Medium)
CWE
- CWE-497 - Exposure of Sensitive System Information to an Unauthorized Control Sphere
Assigner
References
Impacted products
| Vendor | Product | Version | |||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Mozilla | Firefox |
Affected:
unspecified , < 147
(custom)
|
|||||||||||||||||
|
|||||||||||||||||||
Credits
Lyra Rebane
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CVE-2026-0890 (GCVE-0-2026-0890)
Vulnerability from nvd – Published: 2026-01-13 13:30 – Updated: 2026-01-15 15:30
VLAI?
Title
Spoofing issue in the DOM: Copy & Paste and Drag & Drop component
Summary
Spoofing issue in the DOM: Copy & Paste and Drag & Drop component. This vulnerability affects Firefox < 147, Firefox ESR < 140.7, Thunderbird < 147, and Thunderbird < 140.7.
Severity ?
5.4 (Medium)
CWE
- CWE-290 - Authentication Bypass by Spoofing
Assigner
References
Impacted products
| Vendor | Product | Version | |||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Mozilla | Firefox |
Affected:
unspecified , < 147
(custom)
|
|||||||||||||||||
|
|||||||||||||||||||
Credits
Edgar Chen
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CVE-2026-0886 (GCVE-0-2026-0886)
Vulnerability from nvd – Published: 2026-01-13 13:30 – Updated: 2026-01-15 15:34
VLAI?
Title
Incorrect boundary conditions in the Graphics component
Summary
Incorrect boundary conditions in the Graphics component. This vulnerability affects Firefox < 147, Firefox ESR < 115.32, Firefox ESR < 140.7, Thunderbird < 147, and Thunderbird < 140.7.
Severity ?
5.3 (Medium)
CWE
- CWE-119 - Improper Restriction of Operations within the Bounds of a Memory Buffer
Assigner
References
Impacted products
| Vendor | Product | Version | ||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Mozilla | Firefox |
Affected:
unspecified , < 147
(custom)
|
||||||||||||||||||||||
|
||||||||||||||||||||||||
Credits
Oskar L
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CVE-2026-0889 (GCVE-0-2026-0889)
Vulnerability from nvd – Published: 2026-01-13 13:30 – Updated: 2026-01-15 09:31
VLAI?
Title
Denial-of-service in the DOM: Service Workers component
Summary
Denial-of-service in the DOM: Service Workers component. This vulnerability affects Firefox < 147 and Thunderbird < 147.
Severity ?
7.5 (High)
CWE
- CWE-400 - Uncontrolled Resource Consumption
Assigner
References
Impacted products
| Vendor | Product | Version | |||||||
|---|---|---|---|---|---|---|---|---|---|
| Mozilla | Firefox |
Affected:
unspecified , < 147
(custom)
|
|||||||
|
|||||||||
Credits
Elysee Franchuk, Caleb Lerch
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CVE-2026-0888 (GCVE-0-2026-0888)
Vulnerability from nvd – Published: 2026-01-13 13:30 – Updated: 2026-01-15 09:31
VLAI?
Title
Information disclosure in the XML component
Summary
Information disclosure in the XML component. This vulnerability affects Firefox < 147 and Thunderbird < 147.
Severity ?
5.3 (Medium)
CWE
- CWE-200 - Exposure of Sensitive Information to an Unauthorized Actor
Assigner
References
Impacted products
| Vendor | Product | Version | |||||||
|---|---|---|---|---|---|---|---|---|---|
| Mozilla | Firefox |
Affected:
unspecified , < 147
(custom)
|
|||||||
|
|||||||||
Credits
Pier Angelo Vendrame
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CVE-2026-0879 (GCVE-0-2026-0879)
Vulnerability from nvd – Published: 2026-01-13 13:30 – Updated: 2026-01-15 09:31
VLAI?
Title
Sandbox escape due to incorrect boundary conditions in the Graphics component
Summary
Sandbox escape due to incorrect boundary conditions in the Graphics component. This vulnerability affects Firefox < 147, Firefox ESR < 115.32, Firefox ESR < 140.7, Thunderbird < 147, and Thunderbird < 140.7.
Severity ?
9.8 (Critical)
CWE
- CWE-119 - Improper Restriction of Operations within the Bounds of a Memory Buffer
Assigner
References
| URL | Tags | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Mozilla | Firefox |
Affected:
unspecified , < 147
(custom)
|
||||||||||||||||||||||
|
||||||||||||||||||||||||
Credits
Oskar L
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CVE-2026-0881 (GCVE-0-2026-0881)
Vulnerability from nvd – Published: 2026-01-13 13:30 – Updated: 2026-01-15 09:31
VLAI?
Title
Sandbox escape in the Messaging System component
Summary
Sandbox escape in the Messaging System component. This vulnerability affects Firefox < 147 and Thunderbird < 147.
Severity ?
10 (Critical)
Assigner
References
Impacted products
| Vendor | Product | Version | |||||||
|---|---|---|---|---|---|---|---|---|---|
| Mozilla | Firefox |
Affected:
unspecified , < 147
(custom)
|
|||||||
|
|||||||||
Credits
Andrew McCreight
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CVE-2026-0877 (GCVE-0-2026-0877)
Vulnerability from nvd – Published: 2026-01-13 13:30 – Updated: 2026-01-15 09:31
VLAI?
Title
Mitigation bypass in the DOM: Security component
Summary
Mitigation bypass in the DOM: Security component. This vulnerability affects Firefox < 147, Firefox ESR < 115.32, Firefox ESR < 140.7, Thunderbird < 147, and Thunderbird < 140.7.
Severity ?
8.1 (High)
CWE
- CWE-693 - Protection Mechanism Failure
Assigner
References
| URL | Tags | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Mozilla | Firefox |
Affected:
unspecified , < 147
(custom)
|
||||||||||||||||||||||
|
||||||||||||||||||||||||
Credits
mingijung
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CVE-2026-0884 (GCVE-0-2026-0884)
Vulnerability from nvd – Published: 2026-01-13 13:30 – Updated: 2026-01-15 09:31
VLAI?
Title
Use-after-free in the JavaScript Engine component
Summary
Use-after-free in the JavaScript Engine component. This vulnerability affects Firefox < 147, Firefox ESR < 140.7, Thunderbird < 147, and Thunderbird < 140.7.
Severity ?
9.8 (Critical)
CWE
- CWE-416 - Use After Free
Assigner
References
Impacted products
| Vendor | Product | Version | |||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Mozilla | Firefox |
Affected:
unspecified , < 147
(custom)
|
|||||||||||||||||
|
|||||||||||||||||||
Credits
Gary Kwong and Nan Wang
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CVE-2026-0878 (GCVE-0-2026-0878)
Vulnerability from nvd – Published: 2026-01-13 13:30 – Updated: 2026-01-15 09:31
VLAI?
Title
Sandbox escape due to incorrect boundary conditions in the Graphics: CanvasWebGL component
Summary
Sandbox escape due to incorrect boundary conditions in the Graphics: CanvasWebGL component. This vulnerability affects Firefox < 147, Firefox ESR < 140.7, Thunderbird < 147, and Thunderbird < 140.7.
Severity ?
CWE
Assigner
References
Impacted products
| Vendor | Product | Version | |||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Mozilla | Firefox |
Affected:
unspecified , < 147
(custom)
|
|||||||||||||||||
|
|||||||||||||||||||
Credits
Oskar L
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CVE-2026-0883 (GCVE-0-2026-0883)
Vulnerability from nvd – Published: 2026-01-13 13:30 – Updated: 2026-01-15 09:31
VLAI?
Title
Information disclosure in the Networking component
Summary
Information disclosure in the Networking component. This vulnerability affects Firefox < 147, Firefox ESR < 140.7, Thunderbird < 147, and Thunderbird < 140.7.
Severity ?
5.3 (Medium)
CWE
- CWE-200 - Exposure of Sensitive Information to an Unauthorized Actor
Assigner
References
Impacted products
| Vendor | Product | Version | |||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Mozilla | Firefox |
Affected:
unspecified , < 147
(custom)
|
|||||||||||||||||
|
|||||||||||||||||||
Credits
Vladislav Plyatsok
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CVE-2026-0880 (GCVE-0-2026-0880)
Vulnerability from nvd – Published: 2026-01-13 13:30 – Updated: 2026-01-15 09:31
VLAI?
Title
Sandbox escape due to integer overflow in the Graphics component
Summary
Sandbox escape due to integer overflow in the Graphics component. This vulnerability affects Firefox < 147, Firefox ESR < 115.32, Firefox ESR < 140.7, Thunderbird < 147, and Thunderbird < 140.7.
Severity ?
8.8 (High)
CWE
- CWE-190 - Integer Overflow or Wraparound
Assigner
References
| URL | Tags | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Mozilla | Firefox |
Affected:
unspecified , < 147
(custom)
|
||||||||||||||||||||||
|
||||||||||||||||||||||||
Credits
Oskar L
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CVE-2026-0882 (GCVE-0-2026-0882)
Vulnerability from nvd – Published: 2026-01-13 13:30 – Updated: 2026-01-15 09:31
VLAI?
Title
Use-after-free in the IPC component
Summary
Use-after-free in the IPC component. This vulnerability affects Firefox < 147, Firefox ESR < 115.32, Firefox ESR < 140.7, Thunderbird < 147, and Thunderbird < 140.7.
Severity ?
8.8 (High)
CWE
- CWE-416 - Use After Free
Assigner
References
| URL | Tags | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Mozilla | Firefox |
Affected:
unspecified , < 147
(custom)
|
||||||||||||||||||||||
|
||||||||||||||||||||||||
Credits
Randell Jesup
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CVE-2026-0892 (GCVE-0-2026-0892)
Vulnerability from cvelistv5 – Published: 2026-01-13 13:30 – Updated: 2026-01-15 09:31
VLAI?
Title
Memory safety bugs fixed in Firefox 147 and Thunderbird 147
Summary
Memory safety bugs present in Firefox 146 and Thunderbird 146. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Firefox < 147 and Thunderbird < 147.
Severity ?
9.8 (Critical)
CWE
- CWE-119 - Improper Restriction of Operations within the Bounds of a Memory Buffer
Assigner
References
Impacted products
| Vendor | Product | Version | |||||||
|---|---|---|---|---|---|---|---|---|---|
| Mozilla | Firefox |
Affected:
unspecified , < 147
(custom)
|
|||||||
|
|||||||||
Credits
Hiroyuki Ikezoe, Jon Coppeard, Maurice Dauer and the Mozilla Fuzzing Team
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CVE-2026-0891 (GCVE-0-2026-0891)
Vulnerability from cvelistv5 – Published: 2026-01-13 13:30 – Updated: 2026-01-15 09:31
VLAI?
Title
Memory safety bugs fixed in Firefox ESR 140.7, Thunderbird ESR 140.7, Firefox 147 and Thunderbird 147
Summary
Memory safety bugs present in Firefox ESR 140.6, Thunderbird ESR 140.6, Firefox 146 and Thunderbird 146. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Firefox < 147, Firefox ESR < 140.7, Thunderbird < 147, and Thunderbird < 140.7.
Severity ?
8.1 (High)
CWE
- CWE-119 - Improper Restriction of Operations within the Bounds of a Memory Buffer
Assigner
References
Impacted products
| Vendor | Product | Version | |||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Mozilla | Firefox |
Affected:
unspecified , < 147
(custom)
|
|||||||||||||||||
|
|||||||||||||||||||
Credits
Andrew McCreight, Dennis Jackson and the Mozilla Fuzzing Team
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CVE-2026-0890 (GCVE-0-2026-0890)
Vulnerability from cvelistv5 – Published: 2026-01-13 13:30 – Updated: 2026-01-15 15:30
VLAI?
Title
Spoofing issue in the DOM: Copy & Paste and Drag & Drop component
Summary
Spoofing issue in the DOM: Copy & Paste and Drag & Drop component. This vulnerability affects Firefox < 147, Firefox ESR < 140.7, Thunderbird < 147, and Thunderbird < 140.7.
Severity ?
5.4 (Medium)
CWE
- CWE-290 - Authentication Bypass by Spoofing
Assigner
References
Impacted products
| Vendor | Product | Version | |||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Mozilla | Firefox |
Affected:
unspecified , < 147
(custom)
|
|||||||||||||||||
|
|||||||||||||||||||
Credits
Edgar Chen
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CVE-2026-0889 (GCVE-0-2026-0889)
Vulnerability from cvelistv5 – Published: 2026-01-13 13:30 – Updated: 2026-01-15 09:31
VLAI?
Title
Denial-of-service in the DOM: Service Workers component
Summary
Denial-of-service in the DOM: Service Workers component. This vulnerability affects Firefox < 147 and Thunderbird < 147.
Severity ?
7.5 (High)
CWE
- CWE-400 - Uncontrolled Resource Consumption
Assigner
References
Impacted products
| Vendor | Product | Version | |||||||
|---|---|---|---|---|---|---|---|---|---|
| Mozilla | Firefox |
Affected:
unspecified , < 147
(custom)
|
|||||||
|
|||||||||
Credits
Elysee Franchuk, Caleb Lerch
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CVE-2026-0888 (GCVE-0-2026-0888)
Vulnerability from cvelistv5 – Published: 2026-01-13 13:30 – Updated: 2026-01-15 09:31
VLAI?
Title
Information disclosure in the XML component
Summary
Information disclosure in the XML component. This vulnerability affects Firefox < 147 and Thunderbird < 147.
Severity ?
5.3 (Medium)
CWE
- CWE-200 - Exposure of Sensitive Information to an Unauthorized Actor
Assigner
References
Impacted products
| Vendor | Product | Version | |||||||
|---|---|---|---|---|---|---|---|---|---|
| Mozilla | Firefox |
Affected:
unspecified , < 147
(custom)
|
|||||||
|
|||||||||
Credits
Pier Angelo Vendrame
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CVE-2026-0887 (GCVE-0-2026-0887)
Vulnerability from cvelistv5 – Published: 2026-01-13 13:30 – Updated: 2026-01-15 15:32
VLAI?
Title
Clickjacking issue, information disclosure in the PDF Viewer component
Summary
Clickjacking issue, information disclosure in the PDF Viewer component. This vulnerability affects Firefox < 147, Firefox ESR < 140.7, Thunderbird < 147, and Thunderbird < 140.7.
Severity ?
4.3 (Medium)
CWE
- CWE-497 - Exposure of Sensitive System Information to an Unauthorized Control Sphere
Assigner
References
Impacted products
| Vendor | Product | Version | |||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Mozilla | Firefox |
Affected:
unspecified , < 147
(custom)
|
|||||||||||||||||
|
|||||||||||||||||||
Credits
Lyra Rebane
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CVE-2026-0886 (GCVE-0-2026-0886)
Vulnerability from cvelistv5 – Published: 2026-01-13 13:30 – Updated: 2026-01-15 15:34
VLAI?
Title
Incorrect boundary conditions in the Graphics component
Summary
Incorrect boundary conditions in the Graphics component. This vulnerability affects Firefox < 147, Firefox ESR < 115.32, Firefox ESR < 140.7, Thunderbird < 147, and Thunderbird < 140.7.
Severity ?
5.3 (Medium)
CWE
- CWE-119 - Improper Restriction of Operations within the Bounds of a Memory Buffer
Assigner
References
| URL | Tags | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Mozilla | Firefox |
Affected:
unspecified , < 147
(custom)
|
||||||||||||||||||||||
|
||||||||||||||||||||||||
Credits
Oskar L
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CVE-2026-0885 (GCVE-0-2026-0885)
Vulnerability from cvelistv5 – Published: 2026-01-13 13:30 – Updated: 2026-01-15 09:31
VLAI?
Title
Use-after-free in the JavaScript: GC component
Summary
Use-after-free in the JavaScript: GC component. This vulnerability affects Firefox < 147, Firefox ESR < 140.7, Thunderbird < 147, and Thunderbird < 140.7.
Severity ?
6.5 (Medium)
CWE
- CWE-416 - Use After Free
Assigner
References
Impacted products
| Vendor | Product | Version | |||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Mozilla | Firefox |
Affected:
unspecified , < 147
(custom)
|
|||||||||||||||||
|
|||||||||||||||||||
Credits
Irvan Kurniawan
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CVE-2026-0884 (GCVE-0-2026-0884)
Vulnerability from cvelistv5 – Published: 2026-01-13 13:30 – Updated: 2026-01-15 09:31
VLAI?
Title
Use-after-free in the JavaScript Engine component
Summary
Use-after-free in the JavaScript Engine component. This vulnerability affects Firefox < 147, Firefox ESR < 140.7, Thunderbird < 147, and Thunderbird < 140.7.
Severity ?
9.8 (Critical)
CWE
- CWE-416 - Use After Free
Assigner
References
Impacted products
| Vendor | Product | Version | |||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Mozilla | Firefox |
Affected:
unspecified , < 147
(custom)
|
|||||||||||||||||
|
|||||||||||||||||||
Credits
Gary Kwong and Nan Wang
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CVE-2026-0883 (GCVE-0-2026-0883)
Vulnerability from cvelistv5 – Published: 2026-01-13 13:30 – Updated: 2026-01-15 09:31
VLAI?
Title
Information disclosure in the Networking component
Summary
Information disclosure in the Networking component. This vulnerability affects Firefox < 147, Firefox ESR < 140.7, Thunderbird < 147, and Thunderbird < 140.7.
Severity ?
5.3 (Medium)
CWE
- CWE-200 - Exposure of Sensitive Information to an Unauthorized Actor
Assigner
References
Impacted products
| Vendor | Product | Version | |||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Mozilla | Firefox |
Affected:
unspecified , < 147
(custom)
|
|||||||||||||||||
|
|||||||||||||||||||
Credits
Vladislav Plyatsok
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CVE-2026-0881 (GCVE-0-2026-0881)
Vulnerability from cvelistv5 – Published: 2026-01-13 13:30 – Updated: 2026-01-15 09:31
VLAI?
Title
Sandbox escape in the Messaging System component
Summary
Sandbox escape in the Messaging System component. This vulnerability affects Firefox < 147 and Thunderbird < 147.
Severity ?
10 (Critical)
Assigner
References
Impacted products
| Vendor | Product | Version | |||||||
|---|---|---|---|---|---|---|---|---|---|
| Mozilla | Firefox |
Affected:
unspecified , < 147
(custom)
|
|||||||
|
|||||||||
Credits
Andrew McCreight
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CVE-2026-0882 (GCVE-0-2026-0882)
Vulnerability from cvelistv5 – Published: 2026-01-13 13:30 – Updated: 2026-01-15 09:31
VLAI?
Title
Use-after-free in the IPC component
Summary
Use-after-free in the IPC component. This vulnerability affects Firefox < 147, Firefox ESR < 115.32, Firefox ESR < 140.7, Thunderbird < 147, and Thunderbird < 140.7.
Severity ?
8.8 (High)
CWE
- CWE-416 - Use After Free
Assigner
References
| URL | Tags | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Mozilla | Firefox |
Affected:
unspecified , < 147
(custom)
|
||||||||||||||||||||||
|
||||||||||||||||||||||||
Credits
Randell Jesup
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