PT-2026-33934 · Mozilla · Firefox

Inseo An · Published 2026-04-21 · Updated 2026-04-21 · CVE-2026-6748

NVD

Uninitialized memory in the Audio/Video: Web Codecs component. This vulnerability was fixed in Firefox 150 and Firefox ESR 140.10.

Related Identifiers

CVE-2026-6748

Affected Products

Firefox

References · 4

• https://mozilla.org/security/advisories/mfsa2026-32 · Vendor Advisory
• https://mozilla.org/security/advisories/mfsa2026-30 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2026-6748 · Security Note
• https://bugzilla.mozilla.org/show_bug.cgi?id=2022604 · Note