PT-2026-49688 · Mozilla · Firefox

Jmwebdevelopement · Published 2026-06-16 · Updated 2026-06-16 · CVE-2026-12319

NVD

CVSS v3.1

6.5

Medium

Base vector

AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

Denial-of-service in the Audio/Video: Playback component. This vulnerability was fixed in Firefox 152.

Fix

Resource Exhaustion

Weakness Enumeration

CWE-400

Related Identifiers

CVE-2026-12319

Affected Products

Firefox

References · 3

• https://mozilla.org/security/advisories/mfsa2026-57 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2026-12319 · Security Note
• https://bugzilla.mozilla.org/show_bug.cgi?id=2026933 · Note