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CERTFR-2026-AVI-0913
Vulnerability from certfr_avis - Published: 2026-07-23 - Updated: 2026-07-23
De multiples vulnérabilités ont été découvertes dans Mozilla Thunderbird. Certaines d'entre elles permettent à un attaquant de provoquer une exécution de code arbitraire à distance, une élévation de privilèges et un déni de service à distance.
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 ESR | Thunderbird ESR versions antérieures à 140.13 | ||
| Mozilla | Thunderbird | Thunderbird versions antérieures à 153 |
References
| Title | Publication Time | Tags | ||||||
|---|---|---|---|---|---|---|---|---|
|
||||||||
{
"$ref": "https://www.cert.ssi.gouv.fr/openapi.json",
"affected_systems": [
{
"description": "Thunderbird ESR versions ant\u00e9rieures \u00e0 140.13",
"product": {
"name": "Thunderbird ESR",
"vendor": {
"name": "Mozilla",
"scada": false
}
}
},
{
"description": "Thunderbird versions ant\u00e9rieures \u00e0 153",
"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-2026-16354",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-16354"
},
{
"name": "CVE-2026-16359",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-16359"
},
{
"name": "CVE-2026-15719",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-15719"
},
{
"name": "CVE-2026-16409",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-16409"
},
{
"name": "CVE-2026-16386",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-16386"
},
{
"name": "CVE-2026-16377",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-16377"
},
{
"name": "CVE-2026-16357",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-16357"
},
{
"name": "CVE-2026-16387",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-16387"
},
{
"name": "CVE-2026-16352",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-16352"
},
{
"name": "CVE-2026-16406",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-16406"
},
{
"name": "CVE-2026-16363",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-16363"
},
{
"name": "CVE-2026-16383",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-16383"
},
{
"name": "CVE-2026-16393",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-16393"
},
{
"name": "CVE-2026-16401",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-16401"
},
{
"name": "CVE-2026-16378",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-16378"
},
{
"name": "CVE-2026-16350",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-16350"
},
{
"name": "CVE-2026-16369",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-16369"
},
{
"name": "CVE-2026-16388",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-16388"
},
{
"name": "CVE-2026-16402",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-16402"
},
{
"name": "CVE-2026-16370",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-16370"
},
{
"name": "CVE-2026-16362",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-16362"
},
{
"name": "CVE-2026-16405",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-16405"
},
{
"name": "CVE-2026-16407",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-16407"
},
{
"name": "CVE-2026-16391",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-16391"
},
{
"name": "CVE-2026-14899",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-14899"
},
{
"name": "CVE-2026-16364",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-16364"
},
{
"name": "CVE-2026-16384",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-16384"
},
{
"name": "CVE-2026-16400",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-16400"
},
{
"name": "CVE-2026-16361",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-16361"
},
{
"name": "CVE-2026-16396",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-16396"
},
{
"name": "CVE-2026-16381",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-16381"
},
{
"name": "CVE-2026-16394",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-16394"
},
{
"name": "CVE-2026-16365",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-16365"
},
{
"name": "CVE-2026-16376",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-16376"
},
{
"name": "CVE-2026-16351",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-16351"
},
{
"name": "CVE-2026-16371",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-16371"
},
{
"name": "CVE-2026-16412",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-16412"
},
{
"name": "CVE-2026-16398",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-16398"
},
{
"name": "CVE-2026-16367",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-16367"
},
{
"name": "CVE-2026-16389",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-16389"
},
{
"name": "CVE-2026-16399",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-16399"
},
{
"name": "CVE-2026-16375",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-16375"
},
{
"name": "CVE-2026-16408",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-16408"
},
{
"name": "CVE-2026-15718",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-15718"
},
{
"name": "CVE-2026-16385",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-16385"
},
{
"name": "CVE-2026-16382",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-16382"
},
{
"name": "CVE-2026-16410",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-16410"
},
{
"name": "CVE-2026-16374",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-16374"
},
{
"name": "CVE-2026-16379",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-16379"
},
{
"name": "CVE-2026-16353",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-16353"
},
{
"name": "CVE-2026-16380",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-16380"
},
{
"name": "CVE-2026-16349",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-16349"
},
{
"name": "CVE-2026-16366",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-16366"
},
{
"name": "CVE-2026-16390",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-16390"
},
{
"name": "CVE-2026-16356",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-16356"
},
{
"name": "CVE-2026-16358",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-16358"
},
{
"name": "CVE-2026-16403",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-16403"
},
{
"name": "CVE-2026-16360",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-16360"
},
{
"name": "CVE-2026-16355",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-16355"
},
{
"name": "CVE-2026-16392",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-16392"
},
{
"name": "CVE-2026-16368",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-16368"
},
{
"name": "CVE-2026-16372",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-16372"
},
{
"name": "CVE-2026-16395",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-16395"
},
{
"name": "CVE-2026-16411",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-16411"
}
],
"initial_release_date": "2026-07-23T00:00:00",
"last_revision_date": "2026-07-23T00:00:00",
"links": [],
"reference": "CERTFR-2026-AVI-0913",
"revisions": [
{
"description": "Version initiale",
"revision_date": "2026-07-23T00:00:00.000000"
}
],
"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"
},
{
"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 ex\u00e9cution de code arbitraire \u00e0 distance, une \u00e9l\u00e9vation de privil\u00e8ges et un d\u00e9ni de service \u00e0 distance.",
"title": "Multiples vuln\u00e9rabilit\u00e9s dans Mozilla Thunderbird",
"vendor_advisories": [
{
"published_at": "2026-07-21",
"title": "Bulletin de s\u00e9curit\u00e9 Mozilla mfsa2026-71",
"url": "https://www.mozilla.org/en-US/security/advisories/mfsa2026-71/"
},
{
"published_at": "2026-07-21",
"title": "Bulletin de s\u00e9curit\u00e9 Mozilla mfsa2026-72",
"url": "https://www.mozilla.org/en-US/security/advisories/mfsa2026-72/"
}
]
}
CVE-2026-16387 (GCVE-0-2026-16387)
Vulnerability from cvelistv5 – Published: 2026-07-21 12:38 – Updated: 2026-07-22 19:18
VLAI
EPSS
VEX
Title
Site isolation issue in the Networking component
Summary
Site isolation issue in the Networking component. This vulnerability was fixed in Firefox 153, Firefox ESR 140.13, Thunderbird 153, and Thunderbird 140.13.
Severity
9.8 (Critical)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
Assigner
References
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Mozilla | Firefox |
Unaffected:
140.13 , ≤ 140.*
(rpm)
Unaffected: 153 , ≤ * (rpm) |
|
| Mozilla | Thunderbird |
Unaffected:
140.13 , ≤ 140.*
(rpm)
Unaffected: 153 , ≤ * (rpm) |
Credits
Atsushi Sada
{
"containers": {
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"metrics": [
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"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
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"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"
}
},
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}
],
"role": "CISA Coordinator",
"timestamp": "2026-07-22T17:14:57.789549Z",
"version": "2.0.3"
},
"type": "ssvc"
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"descriptions": [
{
"cweId": "CWE-346",
"description": "CWE-346 Origin Validation Error",
"lang": "en",
"type": "CWE"
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]
},
{
"descriptions": [
{
"cweId": "CWE-284",
"description": "CWE-284 Improper Access Control",
"lang": "en",
"type": "CWE"
}
]
},
{
"descriptions": [
{
"cweId": "CWE-200",
"description": "CWE-200 Exposure of Sensitive Information to an Unauthorized Actor",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-07-22T17:28:58.318Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"product": "Firefox",
"vendor": "Mozilla",
"versions": [
{
"lessThanOrEqual": "140.*",
"status": "unaffected",
"version": "140.13",
"versionType": "rpm"
},
{
"lessThanOrEqual": "*",
"status": "unaffected",
"version": "153",
"versionType": "rpm"
}
]
},
{
"product": "Thunderbird",
"vendor": "Mozilla",
"versions": [
{
"lessThanOrEqual": "140.*",
"status": "unaffected",
"version": "140.13",
"versionType": "rpm"
},
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"status": "unaffected",
"version": "153",
"versionType": "rpm"
}
]
}
],
"credits": [
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"value": "Atsushi Sada"
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"descriptions": [
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"supportingMedia": [
{
"base64": false,
"type": "text/html",
"value": "Site isolation issue in the Networking component. This vulnerability was fixed in Firefox 153, Firefox ESR 140.13, Thunderbird 153, and Thunderbird 140.13."
}
],
"value": "Site isolation issue in the Networking component. This vulnerability was fixed in Firefox 153, Firefox ESR 140.13, Thunderbird 153, and Thunderbird 140.13."
}
],
"providerMetadata": {
"dateUpdated": "2026-07-22T19:18:50.988Z",
"orgId": "f16b083a-5664-49f3-a51e-8d479e5ed7fe",
"shortName": "mozilla"
},
"references": [
{
"url": "https://bugzilla.mozilla.org/show_bug.cgi?id=2043200"
},
{
"url": "https://www.mozilla.org/security/advisories/mfsa2026-68/"
},
{
"url": "https://www.mozilla.org/security/advisories/mfsa2026-70/"
},
{
"url": "https://www.mozilla.org/security/advisories/mfsa2026-71/"
},
{
"url": "https://www.mozilla.org/security/advisories/mfsa2026-72/"
}
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"title": "Site isolation issue in the Networking component"
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"datePublished": "2026-07-21T12:38:01.478Z",
"dateReserved": "2026-07-20T21:57:05.138Z",
"dateUpdated": "2026-07-22T19:18:50.988Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2026-16388 (GCVE-0-2026-16388)
Vulnerability from cvelistv5 – Published: 2026-07-21 12:38 – Updated: 2026-07-22 19:18
VLAI
EPSS
VEX
Title
Sandbox escape in the DOM: Networking component
Summary
Sandbox escape in the DOM: Networking component. This vulnerability was fixed in Firefox 153 and Thunderbird 153.
Severity
9.8 (Critical)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
- CWE-693 - Protection Mechanism Failure
Assigner
References
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Mozilla | Firefox |
Unaffected:
153 , ≤ *
(rpm)
|
|
| Mozilla | Thunderbird |
Unaffected:
153 , ≤ *
(rpm)
|
Credits
Yaqoub Aldurayhim
{
"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"
}
},
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{
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}
],
"role": "CISA Coordinator",
"timestamp": "2026-07-22T17:15:55.173364Z",
"version": "2.0.3"
},
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}
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"description": "CWE-693 Protection Mechanism Failure",
"lang": "en",
"type": "CWE"
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"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"product": "Firefox",
"vendor": "Mozilla",
"versions": [
{
"lessThanOrEqual": "*",
"status": "unaffected",
"version": "153",
"versionType": "rpm"
}
]
},
{
"product": "Thunderbird",
"vendor": "Mozilla",
"versions": [
{
"lessThanOrEqual": "*",
"status": "unaffected",
"version": "153",
"versionType": "rpm"
}
]
}
],
"credits": [
{
"lang": "en",
"value": "Yaqoub Aldurayhim"
}
],
"descriptions": [
{
"lang": "en",
"supportingMedia": [
{
"base64": false,
"type": "text/html",
"value": "Sandbox escape in the DOM: Networking component. This vulnerability was fixed in Firefox 153 and Thunderbird 153."
}
],
"value": "Sandbox escape in the DOM: Networking component. This vulnerability was fixed in Firefox 153 and Thunderbird 153."
}
],
"providerMetadata": {
"dateUpdated": "2026-07-22T19:18:52.074Z",
"orgId": "f16b083a-5664-49f3-a51e-8d479e5ed7fe",
"shortName": "mozilla"
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"references": [
{
"url": "https://bugzilla.mozilla.org/show_bug.cgi?id=2043845"
},
{
"url": "https://www.mozilla.org/security/advisories/mfsa2026-68/"
},
{
"url": "https://www.mozilla.org/security/advisories/mfsa2026-71/"
}
],
"title": "Sandbox escape in the DOM: Networking component"
}
},
"cveMetadata": {
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"assignerShortName": "mozilla",
"cveId": "CVE-2026-16388",
"datePublished": "2026-07-21T12:38:02.352Z",
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"state": "PUBLISHED"
},
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CVE-2026-16389 (GCVE-0-2026-16389)
Vulnerability from cvelistv5 – Published: 2026-07-21 12:38 – Updated: 2026-07-22 19:18
VLAI
EPSS
VEX
Title
Incorrect boundary conditions, integer overflow in the Libraries component in NSS
Summary
Incorrect boundary conditions, integer overflow in the Libraries component in NSS. This vulnerability was fixed in Firefox 153 and Thunderbird 153.
Severity
9.8 (Critical)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
- CWE-190 - Integer Overflow or Wraparound
Assigner
References
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Mozilla | Firefox |
Unaffected:
153 , ≤ *
(rpm)
|
|
| Mozilla | Thunderbird |
Unaffected:
153 , ≤ *
(rpm)
|
Credits
Tomoya Nakanishi
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CVE-2026-16390 (GCVE-0-2026-16390)
Vulnerability from cvelistv5 – Published: 2026-07-21 12:38 – Updated: 2026-07-22 19:18
VLAI
EPSS
VEX
Title
Mitigation bypass in the Enterprise Policies component
Summary
Mitigation bypass in the Enterprise Policies component. This vulnerability was fixed in Firefox 153, Firefox ESR 140.13, Thunderbird 153, and Thunderbird 140.13.
Severity
9.1 (Critical)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
- CWE-693 - Protection Mechanism Failure
Assigner
References
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Mozilla | Firefox |
Unaffected:
140.13 , ≤ 140.*
(rpm)
Unaffected: 153 , ≤ * (rpm) |
|
| Mozilla | Thunderbird |
Unaffected:
140.13 , ≤ 140.*
(rpm)
Unaffected: 153 , ≤ * (rpm) |
Credits
Souma Ohsawa
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CVE-2026-16391 (GCVE-0-2026-16391)
Vulnerability from cvelistv5 – Published: 2026-07-21 12:38 – Updated: 2026-07-22 19:18
VLAI
EPSS
VEX
Title
Information disclosure in the Storage: IndexedDB component
Summary
Information disclosure in the Storage: IndexedDB component. This vulnerability was fixed in Firefox 153, Firefox ESR 140.13, Thunderbird 153, and Thunderbird 140.13.
Severity
7.5 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-200 - Exposure of Sensitive Information to an Unauthorized Actor
Assigner
References
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Mozilla | Firefox |
Unaffected:
140.13 , ≤ 140.*
(rpm)
Unaffected: 153 , ≤ * (rpm) |
|
| Mozilla | Thunderbird |
Unaffected:
140.13 , ≤ 140.*
(rpm)
Unaffected: 153 , ≤ * (rpm) |
Credits
Tomoya Nakanishi
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CVE-2026-16392 (GCVE-0-2026-16392)
Vulnerability from cvelistv5 – Published: 2026-07-21 12:38 – Updated: 2026-07-22 19:18
VLAI
EPSS
VEX
Title
JIT miscompilation in the JavaScript Engine: JIT component
Summary
JIT miscompilation in the JavaScript Engine: JIT component. This vulnerability was fixed in Firefox 153 and Thunderbird 153.
Severity
No CVSS data available.
Assigner
References
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Mozilla | Firefox |
Unaffected:
153 , ≤ *
(rpm)
|
|
| Mozilla | Thunderbird |
Unaffected:
153 , ≤ *
(rpm)
|
Credits
Gary Kwong
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CVE-2026-16393 (GCVE-0-2026-16393)
Vulnerability from cvelistv5 – Published: 2026-07-21 12:38 – Updated: 2026-07-22 19:18
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 Firefox 153 and Thunderbird 153.
Severity
9.1 (Critical)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-119 - Improper Restriction of Operations within the Bounds of a Memory Buffer
Assigner
References
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Mozilla | Firefox |
Unaffected:
153 , ≤ *
(rpm)
|
|
| Mozilla | Thunderbird |
Unaffected:
153 , ≤ *
(rpm)
|
Credits
Atsushi Sada
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CVE-2026-16394 (GCVE-0-2026-16394)
Vulnerability from cvelistv5 – Published: 2026-07-21 12:38 – Updated: 2026-07-22 19:18
VLAI
EPSS
VEX
Title
Mitigation bypass in the DOM: Security component
Summary
Mitigation bypass in the DOM: Security component. This vulnerability was fixed in Firefox 153 and Thunderbird 153.
Severity
9.1 (Critical)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
- CWE-693 - Protection Mechanism Failure
Assigner
References
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Mozilla | Firefox |
Unaffected:
153 , ≤ *
(rpm)
|
|
| Mozilla | Thunderbird |
Unaffected:
153 , ≤ *
(rpm)
|
Credits
Nithissh
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CVE-2026-16395 (GCVE-0-2026-16395)
Vulnerability from cvelistv5 – Published: 2026-07-21 12:38 – Updated: 2026-07-23 14:55
VLAI
EPSS
VEX
Title
Integer overflow in the Audio/Video component
Summary
Integer overflow in the Audio/Video component. This vulnerability was fixed in Firefox 153 and Thunderbird 153.
Severity
9.8 (Critical)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
- CWE-190 - Integer Overflow or Wraparound
Assigner
References
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Mozilla | Firefox |
Unaffected:
153 , ≤ *
(rpm)
|
|
| Mozilla | Thunderbird |
Unaffected:
153 , ≤ *
(rpm)
|
Credits
Steven Julian
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CVE-2026-16396 (GCVE-0-2026-16396)
Vulnerability from cvelistv5 – Published: 2026-07-21 12:38 – Updated: 2026-07-24 20:13
VLAI
EPSS
VEX
Title
Privilege escalation in WebExtensions
Summary
Privilege escalation in WebExtensions. This vulnerability was fixed in Firefox 153, Firefox ESR 140.13, Thunderbird 153, and Thunderbird 140.13.
Severity
8.8 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
- CWE-269 - Improper Privilege Management
Assigner
References
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Mozilla | Firefox |
Unaffected:
140.13 , ≤ 140.*
(rpm)
Unaffected: 153 , ≤ * (rpm) |
|
| Mozilla | Thunderbird |
Unaffected:
140.13 , ≤ 140.*
(rpm)
Unaffected: 153 , ≤ * (rpm) |
Credits
Quy Pham
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Loading…
Trend slope:
-
(linear fit over daily sighting counts)
Show additional events:
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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.
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