Threats Tagged 'cve-2026-12320'

Multiple security vulnerabilities affecting Mozilla Firefox and Thunderbird have been addressed in Red Hat Enterprise Linux 10 updates. These include sandbox escapes, information disclosure, memory safety bugs, mitigation bypasses, privilege escalation, denial-of-service, and boundary condition errors across various components such as DOM, Security Process Sandboxing, Graphics, Networking, and Internationalization. The update fixes these issues in Firefox ESR 140.12, Firefox 152, Thunderbird ESR 140.12, and Thunderbird 152. The vulnerabilities have a high security impact and affect Red Hat Enterprise Linux 10 versions with firefox-0:140.12.0-1.el10_2.x86_64. Users are advised to apply the security update provided by Red Hat to remediate these issues.

CVE-2026-12320 is an information disclosure vulnerability in the Password Manager component of Mozilla Firefox. It affects Firefox versions prior to 152 and was fixed in Firefox 152. The vulnerability has a CVSS score of 4.3 (medium severity) and allows unauthorized disclosure of information without impacting integrity or availability. Mozilla has released an official security advisory confirming the fix in Firefox 152.