PT-2026-102561 · Mozilla · Firefox Esr+2
CVSS v3.1
9.6
Critical
| Vector | AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H |
Name of the Vulnerable Software and Affected Versions
Firefox versions prior to 157
Firefox ESR versions prior to 153.4
Thunderbird versions prior to 157
Description
A sandbox escape exists in the XUL component. A sandbox is a security mechanism for separating running programs, ensuring that code executes in a restricted environment to prevent it from accessing unauthorized system resources.
Recommendations
Update Firefox to version 157.
Update Firefox ESR to version 153.4.
Update Thunderbird to version 157.
Fix
RCE
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Weakness Enumeration
Related Identifiers
Affected Products
Firefox
Firefox Esr
Thunderbird