vulnerability

MFSA2025-46 Thunderbird: Security Vulnerabilities fixed in Thunderbird 128.11 (CVE-2025-5266)

Try Surface Command
Back to search
Severity
4
CVSS
(AV:N/AC:M/Au:N/C:P/I:N/A:N)
Published
May 27, 2025
Added
May 28, 2025
Modified
Dec 11, 2025

Description

Script elements loading cross-origin resources generated load and error events which leaked information enabling XS-Leaks attacks. This vulnerability affects Firefox < 139, Firefox ESR < 128.11, Thunderbird < 139, and Thunderbird < 128.11.

Solution

mozilla-thunderbird-upgrade-128_11

References

Title
NEW

Explore Exposure Command

Confidently identify and prioritize exposures from endpoint to cloud with full attack surface visibility and threat-aware risk context.

Try it today