CVE-2026-6782

HIGH 7.5CVE-2026-6782 · Published 21/04/2026 · updated 26/10/2026

In short

CVE-2026-6782 is a HIGH (CVSS 7.5) vulnerability affecting firefox (mozilla), thunderbird (mozilla).
Chance of exploitation in the next 30 days (EPSS): 0.25%, higher than 16.8% of all vulnerabilities.
Fix: update to 150.0 or later.

Package	Affected versions	Patched versions
firefox mozilla	`< 150.0`	`150.0`
thunderbird mozilla	`< 150.0`	`150.0`

Information disclosure in the IP Protection component. This vulnerability was fixed in Firefox 150 and Thunderbird 150.

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

Package

Affected versions

Patched versions

< 150.0

150.0

< 150.0

150.0

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