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CVE-2026-12321

🗓️ 16 Jun 2026 13:16:00Reported by ubuntu.comType 
ubuntucve
 ubuntucve
🔗 ubuntu.com👁 6 Views

CVE-2026-12321: JavaScript WebAssembly JIT miscompilation fixed in Firefox 152 and Thunderbird 152.

Related
Packages
Refs
ReporterTitlePublishedViews
Family
alpinelinux
AlpineLinux
CVE-2026-12321
16 Jun 202611:52
alpinelinux
astralinux
AstraLinux
Astra Linux – Vulnerability in Firefox
5 Aug 202612:44
astralinux
bdu_fstec
BDU FSTEC
Vulnerability of JavaScript components: Firefox’s WebAssembly browser allows attackers to access sensitive data and compromise its integrity
10 Aug 202600:00
bdu_fstec
cgr
Chainguard
CVE-2026-12321 vulnerabilities
18 Jun 202620:21
cgr
circl
Circl
CVE-2026-12321
16 Jun 202614:22
circl
cve
CVE
CVE-2026-12321
16 Jun 202611:52
cve
cvelist
Cvelist
CVE-2026-12321 JIT miscompilation in the JavaScript: WebAssembly component
16 Jun 202611:52
cvelist
debiancve
Debian CVE
CVE-2026-12321
16 Jun 202611:52
debiancve
euvd
EUVD
EUVD-2026-37067
16 Jun 202611:52
euvd
nessus
Tenable Nessus
Fedora 43 : firefox / nss (2026-1c873954fa)
20 Jun 202600:00
nessus
Rows per page
OSOS VersionArchitecturePackagePackage VersionFilename
Ubuntu22.04allthunderbird0thunderbird_0_all.deb
Ubuntu18.04allmozjs380mozjs38_0_all.deb

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25 Jun 2026 15:22Current
6.1Medium risk
Vulners AI Score6.1
CVSS 3.15.4
EPSS0.00159
SSVC
6