CVE-2026-92063

MEDIUM 6.5CVE-2026-92063 · Published 15/09/2026 · updated 05/10/2026

In short

CVE-2026-92063 is a MEDIUM (CVSS 6.5) vulnerability affecting firefox (mozilla), thunderbird (mozilla).
Chance of exploitation in the next 30 days (EPSS): 0.38%, higher than 32.4% of all vulnerabilities.
Fix: update to 156.0.0, 156.0 or later.

Package	Affected versions	Patched versions
firefox mozilla	`< 156.0.0`	`156.0.0`
thunderbird mozilla	`< 156.0`	`156.0`

Denial-of-service in the Audio/Video component. This vulnerability was fixed in Firefox 156 and Thunderbird 156.

Running one of these products? Scan your site to see whether it exposes a vulnerable version.

Package

Affected versions

Patched versions

< 156.0.0

156.0.0

< 156.0

156.0

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