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CVE-2026-2799

🗓️ 24 Feb 2026 13:33:28Reported by Debian Security Bug TrackerType 
debiancve
 debiancve
🔗 security-tracker.debian.org👁 17 Views

CVE-2026-2799 is a use-after-free in the DOM core and HTML components affecting Firefox and Thunderbird before 148.

Related
Packages
ReporterTitlePublishedViews
Family
freebsd
FreeBSD
Firefox -- Multiple vulnerabilities
24 Feb 202600:00
–freebsd
attackerkb
attackerkb
CVE-2026-2799
24 Feb 202613:33
–attackerkb
alpinelinux
AlpineLinux
CVE-2026-2799
24 Feb 202613:33
–alpinelinux
astralinux
AstraLinux
Astra Linux – Vulnerability in Firefox
1 Apr 202603:55
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bdu_fstec
BDU FSTEC
Firefox Thunderbird Use-After-Free DoS
4 May 202600:00
–bdu_fstec
cgr
Chainguard
CVE-2026-2799 vulnerabilities
1 Jul 202614:17
–cgr
circl
Circl
CVE-2026-2799
26 Feb 202609:36
–circl
cnnvd
CNNVD
Mozilla Firefox and Mozilla Thunderbird resource management error vulnerabilities
24 Feb 202600:00
–cnnvd
cve
CVE
CVE-2026-2799
24 Feb 202613:33
–cve
cvelist
Cvelist
CVE-2026-2799 Use-after-free in the DOM: Core & HTML component
24 Feb 202613:33
–cvelist
Rows per page
OSOS VersionArchitecturePackagePackage VersionFilename
Debian999allfirefox148.0-1firefox_148.0-1_all.deb

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24 Feb 2026 13:33Current
8.2High risk
Vulners AI Score8.2
CVSS 3.18.8 - 9.8
EPSS0.00538
SSVC
17