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  1. CVEs
  2. CVE-2026-8091
  1. CVEs

CVE-2026-8091

critical
  • Information
  • CPEs
  • Plugins

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.

References

https://www.mozilla.org/security/advisories/mfsa2026-42/

https://www.mozilla.org/security/advisories/mfsa2026-39/

https://www.mozilla.org/security/advisories/mfsa2026-36/

https://www.mozilla.org/security/advisories/mfsa2026-33/

https://www.mozilla.org/security/advisories/mfsa2026-30/

https://bugzilla.mozilla.org/show_bug.cgi?id=2029301

Details

Source: Mitre, NVD

Published: 2026-05-07

Updated: 2026-05-07

Risk Information

CVSS v2

Base Score: 7.5

Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P

Severity: High

CVSS v3

Base Score: 9.1

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

Severity: Critical

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