CVE-2026-12292

Incorrect boundary conditions in the Web Audio component

CVSS 8.1 HIGHEPSS 0.4%CWE-119 CWE-787

Vexday Risk Score

21Low

SSVC decision (CISA)

Track

No exploitation signal → monitor

CVSS 8.1EPSS 0.4%KEV nãoPoC —Nuclei —Metasploit —Patch referenciado

Lifecycle

16 Jun 2026Published on NVD

Recommendation: Monitor — no exploitation signal at the moment.

Incorrect boundary conditions in the Web Audio component. This vulnerability was fixed in Firefox 152, Firefox ESR 140.12, Thunderbird 152, and Thunderbird 140.12.

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N

Affected products

Mozilla · Firefox Mozilla · Thunderbird

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References

https://access.redhat.com/errata/RHSA-2026:27717 https://access.redhat.com/errata/RHSA-2026:27733 https://access.redhat.com/errata/RHSA-2026:27734 https://access.redhat.com/errata/RHSA-2026:29940 https://access.redhat.com/errata/RHSA-2026:30846 https://access.redhat.com/errata/RHSA-2026:33445 https://access.redhat.com/security/cve/CVE-2026-12292 https://bugzilla.mozilla.org/show_bug.cgi?id=2038465 https://bugzilla.redhat.com/show_bug.cgi?id=2489237 https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-12292.json https://www.mozilla.org/security/advisories/mfsa2026-57/https://www.mozilla.org/security/advisories/mfsa2026-58/