VULNERABILITY INTELLIGENCE

CVE-2026-74981

CVSS score8.1 HIGH
EPSS probability0.21%
CISA KEVNot currently listed
Published2026-08-18
Last modified2026-08-25
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N

Description

Site isolation issue in the Audio/Video: Web Codecs component. This vulnerability was fixed in Firefox 154, Firefox ESR 153.1, Thunderbird 154, and Thunderbird 153.1.

Weakness classification

  • 134c704f-9b21-4f2e-91b3-4a467353bcc0: CWE-346

Primary references