CVE-2026-8091
Incorrect boundary conditions in the Audio/Video: Playback component
- State
- Published
- Severity
- 9.8 Critical
- Published
- May 7, 2026
- Updated
- Aug 11, 2026
- Reserved
- May 7, 2026
Description
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 3.1 | 9.8 Critical | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H | CISA-ADP |
| 3.1 | 7.5 High | CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H | redhat-SADP |
Weaknesses
Affected Products
| Product | Versions |
|---|---|
FirefoxMozilla |
|
ThunderbirdMozilla |
|
References
- https://bugzilla.mozilla.org/show_bug.cgi?id=2029301
- https://www.mozilla.org/security/advisories/mfsa2026-30/
- https://www.mozilla.org/security/advisories/mfsa2026-33/
- https://www.mozilla.org/security/advisories/mfsa2026-36/
- https://www.mozilla.org/security/advisories/mfsa2026-39/
- https://www.mozilla.org/security/advisories/mfsa2026-42/
- https://access.redhat.com/security/cve/CVE-2026-8091vdb-entry
- RHBZ#2467699issue-tracking
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-8091.json
- https://access.redhat.com/errata/RHSA-2026:22708vendor-advisory
- https://access.redhat.com/errata/RHSA-2026:22408vendor-advisory
- https://access.redhat.com/errata/RHSA-2026:24719vendor-advisory
- https://access.redhat.com/errata/RHSA-2026:19157vendor-advisory
- https://access.redhat.com/errata/RHSA-2026:19153vendor-advisory
- https://access.redhat.com/errata/RHSA-2026:19588vendor-advisory
- https://access.redhat.com/errata/RHSA-2026:20586vendor-advisory
- https://access.redhat.com/errata/RHSA-2026:22712vendor-advisory
- https://access.redhat.com/errata/RHSA-2026:24718vendor-advisory
- https://access.redhat.com/errata/RHSA-2026:24345vendor-advisory
- https://access.redhat.com/errata/RHSA-2026:25014vendor-advisory
- https://access.redhat.com/errata/RHSA-2026:22847vendor-advisory
- https://access.redhat.com/errata/RHSA-2026:24717vendor-advisory
- https://access.redhat.com/errata/RHSA-2026:21743vendor-advisory
- https://access.redhat.com/errata/RHSA-2026:22410vendor-advisory
- https://access.redhat.com/errata/RHSA-2026:24844vendor-advisory
- https://access.redhat.com/errata/RHSA-2026:22324vendor-advisory
- https://access.redhat.com/errata/RHSA-2026:24846vendor-advisory
- https://access.redhat.com/errata/RHSA-2026:22409vendor-advisory
- https://access.redhat.com/errata/RHSA-2026:24721vendor-advisory
- https://access.redhat.com/errata/RHSA-2026:19370vendor-advisory
- https://access.redhat.com/errata/RHSA-2026:19348vendor-advisory
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