CVE-2026-16352

Name of the Vulnerable Software and Affected Versions Firefox versions prior to 153 Firefox ESR versions prior to 115.38 Firefox ESR versions prior to 140.13 Thunderbird versions prior to 153 Thunderbird version prior to 140.13

Description A use-after-free issue exists in the Disability Access APIs component, which can lead to a sandbox escape. A use-after-free occurs when an application continues to use a pointer after it has been freed, potentially allowing an attacker to execute arbitrary code outside the restricted sandbox environment.

Recommendations Update Firefox to version 153 or later. Update Firefox ESR to version 115.38 or later. Update Firefox ESR to version 140.13 or later. Update Thunderbird to version 153 or later. Update Thunderbird to version 140.13 or later.