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CVE-2026-74949

🗓️ 18 Aug 2026 12:23:30Reported by Alpine Linux Development TeamType 
alpinelinux
 alpinelinux
🔗 security.alpinelinux.org👁 3 Views

Use-after-free in Firefox/Thunderbird Graphics Canvas2D allows privilege escalation; fixed in versions 154 and ESR 140.14/153.1.

Related
Packages
Refs
ReporterTitlePublishedViews
Family
circl
Circl
CVE-2026-74949
19 Aug 202604:45
circl
cve
CVE
CVE-2026-74949
18 Aug 202612:23
cve
cvelist
Cvelist
CVE-2026-74949 Privilege escalation due to use-after-free in the Graphics: Canvas2D component
18 Aug 202612:23
cvelist
debian
Debian
[SECURITY] [DSA 6451-1] firefox-esr security update
19 Aug 202617:45
debian
debiancve
Debian CVE
CVE-2026-74949
18 Aug 202612:23
debiancve
nessus
Tenable Nessus
Debian dsa-6451 : firefox-esr - security update
19 Aug 202600:00
nessus
nessus
Tenable Nessus
Mozilla Firefox ESR < 140.14
18 Aug 202600:00
nessus
nessus
Tenable Nessus
Mozilla Firefox ESR < 153.1
18 Aug 202600:00
nessus
nessus
Tenable Nessus
Mozilla Firefox < 154.0
18 Aug 202600:00
nessus
nessus
Tenable Nessus
Mozilla Thunderbird < 140.14
19 Aug 202600:00
nessus
Rows per page
OSOS VersionArchitecturePackagePackage VersionFilename
Alpine Linux3.24anyfirefox151.0.3-r0firefox-151.0.3-r0.apk
Alpine Linux3.24anythunderbird151.0.1-r0thunderbird-151.0.1-r0.apk

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19 Aug 2026 16:37Current
5.4Medium risk
Vulners AI Score5.4
CVSS 3.18.8
EPSS0.00333
SSVC
3