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CERTFR-2026-AVI-0204
Vulnerability from certfr_avis - Published: 2026-02-25 - Updated: 2026-02-25
De multiples vulnérabilités ont été découvertes dans les produits Mozilla. Certaines d'entre elles permettent à un attaquant de provoquer une exécution de code arbitraire à distance, une élévation de privilèges 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 | Firefox pour iOS versions antérieures à 147.4 | ||
| Mozilla | Thunderbird | Thunderbird versions antérieures à 140.8 | ||
| Mozilla | Firefox | Firefox versions antérieures à 148 | ||
| Mozilla | Firefox ESR | Firefox ESR versions antérieures à 115.33 | ||
| Mozilla | Thunderbird | Thunderbird versions antérieures à 148 | ||
| Mozilla | Firefox ESR | Firefox ESR versions antérieures à 140.8 |
References
| Title | Publication Time | Tags | ||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||
{
"$ref": "https://www.cert.ssi.gouv.fr/openapi.json",
"affected_systems": [
{
"description": "Firefox pour iOS versions ant\u00e9rieures \u00e0 147.4",
"product": {
"name": "Firefox",
"vendor": {
"name": "Mozilla",
"scada": false
}
}
},
{
"description": "Thunderbird versions ant\u00e9rieures \u00e0 140.8",
"product": {
"name": "Thunderbird",
"vendor": {
"name": "Mozilla",
"scada": false
}
}
},
{
"description": "Firefox versions ant\u00e9rieures \u00e0 148",
"product": {
"name": "Firefox",
"vendor": {
"name": "Mozilla",
"scada": false
}
}
},
{
"description": "Firefox ESR versions ant\u00e9rieures \u00e0 115.33",
"product": {
"name": "Firefox ESR",
"vendor": {
"name": "Mozilla",
"scada": false
}
}
},
{
"description": "Thunderbird versions ant\u00e9rieures \u00e0 148",
"product": {
"name": "Thunderbird",
"vendor": {
"name": "Mozilla",
"scada": false
}
}
},
{
"description": "Firefox ESR versions ant\u00e9rieures \u00e0 140.8",
"product": {
"name": "Firefox ESR",
"vendor": {
"name": "Mozilla",
"scada": false
}
}
}
],
"affected_systems_content": "",
"content": "## Solutions\n\nSe r\u00e9f\u00e9rer au bulletin de s\u00e9curit\u00e9 de l\u0027\u00e9diteur pour l\u0027obtention des correctifs (cf. section Documentation).",
"cves": [
{
"name": "CVE-2026-2777",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-2777"
},
{
"name": "CVE-2026-2773",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-2773"
},
{
"name": "CVE-2026-2763",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-2763"
},
{
"name": "CVE-2026-2783",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-2783"
},
{
"name": "CVE-2026-2786",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-2786"
},
{
"name": "CVE-2026-2778",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-2778"
},
{
"name": "CVE-2026-2788",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-2788"
},
{
"name": "CVE-2026-2758",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-2758"
},
{
"name": "CVE-2026-2779",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-2779"
},
{
"name": "CVE-2026-2771",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-2771"
},
{
"name": "CVE-2026-2769",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-2769"
},
{
"name": "CVE-2026-2799",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-2799"
},
{
"name": "CVE-2026-2775",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-2775"
},
{
"name": "CVE-2026-2790",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-2790"
},
{
"name": "CVE-2026-2784",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-2784"
},
{
"name": "CVE-2026-2806",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-2806"
},
{
"name": "CVE-2026-2760",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-2760"
},
{
"name": "CVE-2026-2792",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-2792"
},
{
"name": "CVE-2026-2807",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-2807"
},
{
"name": "CVE-2026-2781",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-2781"
},
{
"name": "CVE-2026-2759",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-2759"
},
{
"name": "CVE-2026-2776",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-2776"
},
{
"name": "CVE-2026-2764",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-2764"
},
{
"name": "CVE-2026-2762",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-2762"
},
{
"name": "CVE-2026-2791",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-2791"
},
{
"name": "CVE-2026-2797",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-2797"
},
{
"name": "CVE-2026-2794",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-2794"
},
{
"name": "CVE-2026-2765",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-2765"
},
{
"name": "CVE-2026-2770",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-2770"
},
{
"name": "CVE-2026-2768",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-2768"
},
{
"name": "CVE-2026-2802",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-2802"
},
{
"name": "CVE-2026-2789",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-2789"
},
{
"name": "CVE-2026-2787",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-2787"
},
{
"name": "CVE-2026-2772",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-2772"
},
{
"name": "CVE-2026-2798",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-2798"
},
{
"name": "CVE-2026-2803",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-2803"
},
{
"name": "CVE-2026-2805",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-2805"
},
{
"name": "CVE-2026-2780",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-2780"
},
{
"name": "CVE-2026-2782",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-2782"
},
{
"name": "CVE-2026-2766",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-2766"
},
{
"name": "CVE-2026-2796",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-2796"
},
{
"name": "CVE-2026-2800",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-2800"
},
{
"name": "CVE-2026-2774",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-2774"
},
{
"name": "CVE-2026-2801",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-2801"
},
{
"name": "CVE-2026-2785",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-2785"
},
{
"name": "CVE-2026-2634",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-2634"
},
{
"name": "CVE-2026-2757",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-2757"
},
{
"name": "CVE-2026-2761",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-2761"
},
{
"name": "CVE-2026-2793",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-2793"
},
{
"name": "CVE-2026-2804",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-2804"
},
{
"name": "CVE-2026-2795",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-2795"
},
{
"name": "CVE-2026-2767",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-2767"
}
],
"initial_release_date": "2026-02-25T00:00:00",
"last_revision_date": "2026-02-25T00:00:00",
"links": [],
"reference": "CERTFR-2026-AVI-0204",
"revisions": [
{
"description": "Version initiale",
"revision_date": "2026-02-25T00:00:00.000000"
}
],
"risks": [
{
"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 les produits Mozilla. 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 une atteinte \u00e0 la confidentialit\u00e9 des donn\u00e9es.",
"title": "Multiples vuln\u00e9rabilit\u00e9s dans les produits Mozilla",
"vendor_advisories": [
{
"published_at": "2026-02-24",
"title": "Bulletin de s\u00e9curit\u00e9 Mozilla mfsa2026-14",
"url": "https://www.mozilla.org/en-US/security/advisories/mfsa2026-14/"
},
{
"published_at": "2026-02-24",
"title": "Bulletin de s\u00e9curit\u00e9 Mozilla mfsa2026-15",
"url": "https://www.mozilla.org/en-US/security/advisories/mfsa2026-15/"
},
{
"published_at": "2026-02-20",
"title": "Bulletin de s\u00e9curit\u00e9 Mozilla mfsa2026-12",
"url": "https://www.mozilla.org/en-US/security/advisories/mfsa2026-12/"
},
{
"published_at": "2026-02-24",
"title": "Bulletin de s\u00e9curit\u00e9 Mozilla mfsa2026-13",
"url": "https://www.mozilla.org/en-US/security/advisories/mfsa2026-13/"
},
{
"published_at": "2026-02-24",
"title": "Bulletin de s\u00e9curit\u00e9 Mozilla mfsa2026-17",
"url": "https://www.mozilla.org/en-US/security/advisories/mfsa2026-17/"
},
{
"published_at": "2026-02-24",
"title": "Bulletin de s\u00e9curit\u00e9 Mozilla mfsa2026-16",
"url": "https://www.mozilla.org/en-US/security/advisories/mfsa2026-16/"
}
]
}
CVE-2026-2634 (GCVE-0-2026-2634)
Vulnerability from cvelistv5 – Published: 2026-02-24 13:33 – Updated: 2026-04-13 13:53
VLAI
EPSS
Title
Spoofed web content presented under trusted domains using scripted navigation on Firefox iOS
Summary
Malicious scripts could cause desynchronization between the address bar and web content before a response is received in Firefox iOS, allowing attacker-controlled pages to be presented under spoofed domains. This vulnerability was fixed in Firefox for iOS 147.4.
Severity
9.8 (Critical)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
- CWE-451 - User Interface (UI) Misrepresentation of Critical Information
Assigner
References
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Mozilla | Firefox for iOS |
Unaffected:
147.4 , ≤ *
(rpm)
|
Credits
Renwa
{
"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-2026-2634",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "yes"
},
{
"Technical Impact": "total"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-02-27T20:55:08.919904Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-451",
"description": "CWE-451 User Interface (UI) Misrepresentation of Critical Information",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-02-27T20:55:35.483Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"product": "Firefox for iOS",
"vendor": "Mozilla",
"versions": [
{
"lessThanOrEqual": "*",
"status": "unaffected",
"version": "147.4",
"versionType": "rpm"
}
]
}
],
"credits": [
{
"lang": "en",
"value": "Renwa"
}
],
"descriptions": [
{
"lang": "en",
"supportingMedia": [
{
"base64": false,
"type": "text/html",
"value": "Malicious scripts could cause desynchronization between the address bar and web content before a response is received in Firefox iOS, allowing attacker-controlled pages to be presented under spoofed domains. This vulnerability was fixed in Firefox for iOS 147.4."
}
],
"value": "Malicious scripts could cause desynchronization between the address bar and web content before a response is received in Firefox iOS, allowing attacker-controlled pages to be presented under spoofed domains. This vulnerability was fixed in Firefox for iOS 147.4."
}
],
"providerMetadata": {
"dateUpdated": "2026-04-13T13:53:52.498Z",
"orgId": "f16b083a-5664-49f3-a51e-8d479e5ed7fe",
"shortName": "mozilla"
},
"references": [
{
"url": "https://bugzilla.mozilla.org/show_bug.cgi?id=1975529"
},
{
"url": "https://www.mozilla.org/security/advisories/mfsa2026-12/"
}
],
"title": "Spoofed web content presented under trusted domains using scripted navigation on Firefox iOS"
}
},
"cveMetadata": {
"assignerOrgId": "f16b083a-5664-49f3-a51e-8d479e5ed7fe",
"assignerShortName": "mozilla",
"cveId": "CVE-2026-2634",
"datePublished": "2026-02-24T13:33:24.725Z",
"dateReserved": "2026-02-17T18:31:35.581Z",
"dateUpdated": "2026-04-13T13:53:52.498Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2026-2757 (GCVE-0-2026-2757)
Vulnerability from cvelistv5 – Published: 2026-02-24 13:32 – Updated: 2026-06-30 12:08
VLAI
EPSS
Title
Incorrect boundary conditions in the WebRTC: Audio/Video component
Summary
Incorrect boundary conditions in the WebRTC: Audio/Video component. This vulnerability was fixed in Firefox 148, Firefox ESR 115.33, Firefox ESR 140.8, Thunderbird 148, and Thunderbird 140.8.
Severity
9.8 (Critical)
7.1 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
- CWE-1384 - Improper Handling of Physical or Environmental Conditions
Assigner
References
34 references
Impacted products
22 products
Credits
Igor Morgenstern
{
"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-2026-2757",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "yes"
},
{
"Technical Impact": "total"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-02-26T15:39:17.644870Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-1384",
"description": "CWE-1384 Improper Handling of Physical or Environmental Conditions",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-04-14T15:11:01.347Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
},
{
"affected": [
{
"cpes": [
"cpe:/o:redhat:rhel_els:7"
],
"defaultStatus": "affected",
"product": "Red Hat Enterprise Linux Server (v. 7 ELS)",
"vendor": "Red Hat"
},
{
"cpes": [
"cpe:/o:redhat:enterprise_linux_eus:10.0"
],
"defaultStatus": "affected",
"product": "Red Hat Enterprise Linux AppStream EUS (v. 10.0)",
"vendor": "Red Hat"
},
{
"cpes": [
"cpe:/o:redhat:enterprise_linux:10.1"
],
"defaultStatus": "affected",
"product": "Red Hat Enterprise Linux AppStream (v. 10)",
"vendor": "Red Hat"
},
{
"cpes": [
"cpe:/a:redhat:enterprise_linux:8::appstream"
],
"defaultStatus": "affected",
"product": "Red Hat Enterprise Linux AppStream (v. 8)",
"vendor": "Red Hat"
},
{
"cpes": [
"cpe:/a:redhat:rhel_aus:8.2::appstream"
],
"defaultStatus": "affected",
"product": "Red Hat Enterprise Linux AppStream AUS (v. 8.2)",
"vendor": "Red Hat"
},
{
"cpes": [
"cpe:/a:redhat:rhel_aus:8.4::appstream"
],
"defaultStatus": "affected",
"product": "Red Hat Enterprise Linux AppStream AUS (v.8.4)",
"vendor": "Red Hat"
},
{
"cpes": [
"cpe:/a:redhat:rhel_eus_long_life:8.4::appstream"
],
"defaultStatus": "affected",
"product": "Red Hat Enterprise Linux AppStream EUS EXTENSION (v.8.4)",
"vendor": "Red Hat"
},
{
"cpes": [
"cpe:/a:redhat:rhel_aus:8.6::appstream"
],
"defaultStatus": "affected",
"product": "Red Hat Enterprise Linux AppStream AUS (v.8.6)",
"vendor": "Red Hat"
},
{
"cpes": [
"cpe:/a:redhat:rhel_e4s:8.6::appstream"
],
"defaultStatus": "affected",
"product": "Red Hat Enterprise Linux AppStream E4S (v.8.6)",
"vendor": "Red Hat"
},
{
"cpes": [
"cpe:/a:redhat:rhel_tus:8.6::appstream"
],
"defaultStatus": "affected",
"product": "Red Hat Enterprise Linux AppStream TUS (v.8.6)",
"vendor": "Red Hat"
},
{
"cpes": [
"cpe:/a:redhat:rhel_e4s:8.8::appstream"
],
"defaultStatus": "affected",
"product": "Red Hat Enterprise Linux AppStream E4S (v.8.8)",
"vendor": "Red Hat"
},
{
"cpes": [
"cpe:/a:redhat:rhel_tus:8.8::appstream"
],
"defaultStatus": "affected",
"product": "Red Hat Enterprise Linux AppStream TUS (v.8.8)",
"vendor": "Red Hat"
},
{
"cpes": [
"cpe:/a:redhat:rhel_e4s:9.0::appstream"
],
"defaultStatus": "affected",
"product": "Red Hat Enterprise Linux AppStream E4S (v.9.0)",
"vendor": "Red Hat"
},
{
"cpes": [
"cpe:/a:redhat:rhel_e4s:9.2::appstream"
],
"defaultStatus": "affected",
"product": "Red Hat Enterprise Linux AppStream E4S (v.9.2)",
"vendor": "Red Hat"
},
{
"cpes": [
"cpe:/a:redhat:rhel_eus:9.4::appstream"
],
"defaultStatus": "affected",
"product": "Red Hat Enterprise Linux AppStream EUS (v.9.4)",
"vendor": "Red Hat"
},
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CVE-2026-2758 (GCVE-0-2026-2758)
Vulnerability from cvelistv5 – Published: 2026-02-24 13:32 – Updated: 2026-06-30 12:06
VLAI
EPSS
Title
Use-after-free in the JavaScript: GC component
Summary
Use-after-free in the JavaScript: GC component. This vulnerability was fixed in Firefox 148, Firefox ESR 115.33, Firefox ESR 140.8, Thunderbird 148, and Thunderbird 140.8.
Severity
9.8 (Critical)
7.5 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
- CWE-416 - Use After Free
Assigner
References
34 references
Impacted products
22 products
Credits
Gary Kwong
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CVE-2026-2759 (GCVE-0-2026-2759)
Vulnerability from cvelistv5 – Published: 2026-02-24 13:32 – Updated: 2026-06-30 03:17
VLAI
EPSS
Title
Incorrect boundary conditions in the Graphics: ImageLib component
Summary
Incorrect boundary conditions in the Graphics: ImageLib component. This vulnerability was fixed in Firefox 148, Firefox ESR 115.33, Firefox ESR 140.8, Thunderbird 148, and Thunderbird 140.8.
Severity
9.8 (Critical)
7.5 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
- CWE-1384 - Improper Handling of Physical or Environmental Conditions
Assigner
References
34 references
Impacted products
22 products
Credits
Steven Julian
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CVE-2026-2760 (GCVE-0-2026-2760)
Vulnerability from cvelistv5 – Published: 2026-02-24 13:33 – Updated: 2026-06-30 03:18
VLAI
EPSS
Title
Sandbox escape due to incorrect boundary conditions in the Graphics: WebRender component
Summary
Sandbox escape due to incorrect boundary conditions in the Graphics: WebRender component. This vulnerability was fixed in Firefox 148, Firefox ESR 115.33, Firefox ESR 140.8, Thunderbird 148, and Thunderbird 140.8.
Severity
10 (Critical)
7.5 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
- CWE-1384 - Improper Handling of Physical or Environmental Conditions
Assigner
References
34 references
Impacted products
22 products
Credits
Oskar L
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CVE-2026-2761 (GCVE-0-2026-2761)
Vulnerability from cvelistv5 – Published: 2026-02-24 13:33 – Updated: 2026-06-30 03:19
VLAI
EPSS
Title
Sandbox escape in the Graphics: WebRender component
Summary
Sandbox escape in the Graphics: WebRender component. This vulnerability was fixed in Firefox 148, Firefox ESR 115.33, Firefox ESR 140.8, Thunderbird 148, and Thunderbird 140.8.
Severity
10 (Critical)
7.5 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
- CWE-693 - Protection Mechanism Failure
Assigner
References
34 references
Impacted products
22 products
Credits
Oskar L
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CVE-2026-2762 (GCVE-0-2026-2762)
Vulnerability from cvelistv5 – Published: 2026-02-24 13:33 – Updated: 2026-07-01 12:05
VLAI
EPSS
Title
Integer overflow in the JavaScript: Standard Library component
Summary
Integer overflow in the JavaScript: Standard Library component. This vulnerability was fixed in Firefox 148, Firefox ESR 140.8, Thunderbird 148, and Thunderbird 140.8.
Severity
9.8 (Critical)
7.5 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
- CWE-190 - Integer Overflow or Wraparound
Assigner
References
33 references
Impacted products
22 products
Credits
André Bargull
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CVE-2026-2763 (GCVE-0-2026-2763)
Vulnerability from cvelistv5 – Published: 2026-02-24 13:33 – Updated: 2026-06-30 12:06
VLAI
EPSS
Title
Use-after-free in the JavaScript Engine component
Summary
Use-after-free in the JavaScript Engine component. This vulnerability was fixed in Firefox 148, Firefox ESR 115.33, Firefox ESR 140.8, Thunderbird 148, and Thunderbird 140.8.
Severity
9.8 (Critical)
7.5 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
- CWE-416 - Use After Free
Assigner
References
34 references
Impacted products
22 products
Credits
Evyatar Ben Asher, Keane Lucas, Nicholas Carlini, Newton Cheng, Daniel Freeman, Alex Gaynor, and Joel Weinberger using Claude from Anthropic
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CVE-2026-2764 (GCVE-0-2026-2764)
Vulnerability from cvelistv5 – Published: 2026-02-24 13:33 – Updated: 2026-07-01 12:05
VLAI
EPSS
Title
JIT miscompilation, use-after-free in the JavaScript Engine: JIT component
Summary
JIT miscompilation, use-after-free in the JavaScript Engine: JIT component. This vulnerability was fixed in Firefox 148, Firefox ESR 115.33, Firefox ESR 140.8, Thunderbird 148, and Thunderbird 140.8.
Severity
9.8 (Critical)
7.5 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
- CWE-416 - Use After Free
Assigner
References
34 references
Impacted products
22 products
Credits
Evyatar Ben Asher, Keane Lucas, Nicholas Carlini, Newton Cheng, Daniel Freeman, Alex Gaynor, and Joel Weinberger using Claude from Anthropic
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CVE-2026-2765 (GCVE-0-2026-2765)
Vulnerability from cvelistv5 – Published: 2026-02-24 13:33 – Updated: 2026-07-01 12:05
VLAI
EPSS
Title
Use-after-free in the JavaScript Engine component
Summary
Use-after-free in the JavaScript Engine component. This vulnerability was fixed in Firefox 148, Firefox ESR 140.8, Thunderbird 148, and Thunderbird 140.8.
Severity
9.8 (Critical)
7.5 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
- CWE-416 - Use After Free
Assigner
References
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Impacted products
22 products
Credits
Evyatar Ben Asher, Keane Lucas, Nicholas Carlini, Newton Cheng, Daniel Freeman, Alex Gaynor, and Joel Weinberger using Claude from Anthropic
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{
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},
{
"tags": [
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},
{
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],
"url": "https://access.redhat.com/errata/RHSA-2026:3983"
},
{
"tags": [
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],
"url": "https://access.redhat.com/errata/RHSA-2026:4152"
},
{
"tags": [
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],
"url": "https://access.redhat.com/errata/RHSA-2026:3978"
},
{
"tags": [
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],
"url": "https://access.redhat.com/errata/RHSA-2026:3496"
},
{
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],
"url": "https://access.redhat.com/errata/RHSA-2026:3981"
},
{
"tags": [
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"x_refsource_REDHAT"
],
"url": "https://access.redhat.com/errata/RHSA-2026:3497"
},
{
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"url": "https://access.redhat.com/errata/RHSA-2026:3982"
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{
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"lang": "en",
"value": "RHSA-2026:3984: Red Hat Enterprise Linux Server (v. 7 ELS)"
},
{
"lang": "en",
"value": "RHSA-2026:3976: Red Hat Enterprise Linux AppStream EUS (v. 10.0)"
},
{
"lang": "en",
"value": "RHSA-2026:4260: Red Hat Enterprise Linux AppStream EUS (v. 10.0)"
},
{
"lang": "en",
"value": "RHSA-2026:3361: Red Hat Enterprise Linux AppStream (v. 10)"
},
{
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"value": "RHSA-2026:3517: Red Hat Enterprise Linux AppStream (v. 10)"
},
{
"lang": "en",
"value": "RHSA-2026:3338: Red Hat Enterprise Linux AppStream (v. 8)"
},
{
"lang": "en",
"value": "RHSA-2026:3515: Red Hat Enterprise Linux AppStream (v. 8)"
},
{
"lang": "en",
"value": "RHSA-2026:3492: Red Hat Enterprise Linux AppStream AUS (v. 8.2)"
},
{
"lang": "en",
"value": "RHSA-2026:4432: Red Hat Enterprise Linux AppStream AUS (v. 8.2)"
},
{
"lang": "en",
"value": "RHSA-2026:3491: Red Hat Enterprise Linux AppStream AUS (v.8.4), Red Hat Enterprise Linux AppStream EUS EXTENSION (v.8.4)"
},
{
"lang": "en",
"value": "RHSA-2026:3980: Red Hat Enterprise Linux AppStream AUS (v.8.4), Red Hat Enterprise Linux AppStream EUS EXTENSION (v.8.4)"
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{
"lang": "en",
"value": "RHSA-2026:3495: Red Hat Enterprise Linux AppStream AUS (v.8.6), Red Hat Enterprise Linux AppStream E4S (v.8.6), Red Hat Enterprise Linux AppStream TUS (v.8.6)"
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"value": "RHSA-2026:4022: Red Hat Enterprise Linux AppStream E4S (v.8.8), Red Hat Enterprise Linux AppStream TUS (v.8.8)"
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{
"lang": "en",
"value": "RHSA-2026:3493: Red Hat Enterprise Linux AppStream E4S (v.9.0)"
},
{
"lang": "en",
"value": "RHSA-2026:3983: Red Hat Enterprise Linux AppStream E4S (v.9.0)"
},
{
"lang": "en",
"value": "RHSA-2026:4152: Red Hat Enterprise Linux AppStream E4S (v.9.2)"
},
{
"lang": "en",
"value": "RHSA-2026:3978: Red Hat Enterprise Linux AppStream E4S (v.9.2)"
},
{
"lang": "en",
"value": "RHSA-2026:3496: Red Hat Enterprise Linux AppStream EUS (v.9.4)"
},
{
"lang": "en",
"value": "RHSA-2026:3981: Red Hat Enterprise Linux AppStream EUS (v.9.4)"
},
{
"lang": "en",
"value": "RHSA-2026:3497: Red Hat Enterprise Linux AppStream EUS (v.9.6)"
},
{
"lang": "en",
"value": "RHSA-2026:3982: Red Hat Enterprise Linux AppStream EUS (v.9.6)"
},
{
"lang": "en",
"value": "RHSA-2026:3339: Red Hat Enterprise Linux AppStream (v. 9)"
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{
"lang": "en",
"value": "RHSA-2026:3516: Red Hat Enterprise Linux AppStream (v. 9)"
}
],
"timeline": [
{
"lang": "en",
"time": "2026-02-24T14:05:05.206Z",
"value": "Reported to Red Hat."
},
{
"lang": "en",
"time": "2026-02-24T13:33:03.943Z",
"value": "Made public."
}
],
"title": "firefox: thunderbird: Use-after-free in the JavaScript Engine component",
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}
],
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"vendor": "Mozilla",
"versions": [
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"version": "140.8",
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}
],
"credits": [
{
"lang": "en",
"value": "Evyatar Ben Asher, Keane Lucas, Nicholas Carlini, Newton Cheng, Daniel Freeman, Alex Gaynor, and Joel Weinberger using Claude from Anthropic"
}
],
"descriptions": [
{
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"supportingMedia": [
{
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"type": "text/html",
"value": "Use-after-free in the JavaScript Engine component. This vulnerability was fixed in Firefox 148, Firefox ESR 140.8, Thunderbird 148, and Thunderbird 140.8."
}
],
"value": "Use-after-free in the JavaScript Engine component. This vulnerability was fixed in Firefox 148, Firefox ESR 140.8, Thunderbird 148, and Thunderbird 140.8."
}
],
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"dateUpdated": "2026-04-13T13:53:12.398Z",
"orgId": "f16b083a-5664-49f3-a51e-8d479e5ed7fe",
"shortName": "mozilla"
},
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"url": "https://bugzilla.mozilla.org/show_bug.cgi?id=2013562"
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{
"url": "https://www.mozilla.org/security/advisories/mfsa2026-13/"
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{
"url": "https://www.mozilla.org/security/advisories/mfsa2026-15/"
},
{
"url": "https://www.mozilla.org/security/advisories/mfsa2026-16/"
},
{
"url": "https://www.mozilla.org/security/advisories/mfsa2026-17/"
}
],
"title": "Use-after-free in the JavaScript Engine component"
}
},
"cveMetadata": {
"assignerOrgId": "f16b083a-5664-49f3-a51e-8d479e5ed7fe",
"assignerShortName": "mozilla",
"cveId": "CVE-2026-2765",
"datePublished": "2026-02-24T13:33:03.943Z",
"dateReserved": "2026-02-19T15:05:35.131Z",
"dateUpdated": "2026-07-01T12:05:15.228Z",
"state": "PUBLISHED"
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"dataType": "CVE_RECORD",
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}
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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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