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Critical 9.8Published May 7, 2026
CVE-2026-8091Incorrect boundary conditions in the Audio/Video: Playback component.
Updated under an hour ago ()
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Incorrect boundary conditions in the Audio/Video: Playback component. This vulnerability was fixed in Firefox 150, Thunderbird 150, Firefox ESR 140.10.1, Thunderbird 140.10.1, and Firefox ESR 115.35.2.
- CVSS
- 9.8 CRITICAL (v3.1, NVD)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- Weakness (CWE)
- CWE-754, CWE-805
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Not given
- NVD analysis
- Modified
- Record last updated
- Aug 11, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
mozilla firefox mozilla:firefox | before 115.35.2; from 140.0 before 140.10.1 | NVD |
mozilla thunderbird mozilla:thunderbird | from 140.0 before 140.10.1 | NVD |
References
- https://bugzilla.mozilla.org/show_bug.cgi?id=2029301permissions-required
- https://www.mozilla.org/security/advisories/mfsa2026-30/vendor-advisory
- https://www.mozilla.org/security/advisories/mfsa2026-33/vendor-advisory
- https://www.mozilla.org/security/advisories/mfsa2026-36/vendor-advisory
- https://www.mozilla.org/security/advisories/mfsa2026-39/vendor-advisory
- https://www.mozilla.org/security/advisories/mfsa2026-42/vendor-advisory
- https://access.redhat.com/errata/RHSA-2026:19153
- https://access.redhat.com/errata/RHSA-2026:19157
- https://access.redhat.com/errata/RHSA-2026:19348
- https://access.redhat.com/errata/RHSA-2026:19370
- https://access.redhat.com/errata/RHSA-2026:19588
- https://access.redhat.com/errata/RHSA-2026:20586
- https://access.redhat.com/errata/RHSA-2026:21743
- https://access.redhat.com/errata/RHSA-2026:22324
- https://access.redhat.com/errata/RHSA-2026:22408
- https://access.redhat.com/errata/RHSA-2026:22409
- https://access.redhat.com/errata/RHSA-2026:22410
- https://access.redhat.com/errata/RHSA-2026:22708
- https://access.redhat.com/errata/RHSA-2026:22712
- https://access.redhat.com/errata/RHSA-2026:22847
- https://access.redhat.com/errata/RHSA-2026:24345
- https://access.redhat.com/errata/RHSA-2026:24717
- https://access.redhat.com/errata/RHSA-2026:24718
- https://access.redhat.com/errata/RHSA-2026:24719
- https://access.redhat.com/errata/RHSA-2026:24721
The CVE record on cve.org NVD's entry
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