Threats Tagged 'cve-2026-12316'

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-2026-12316 is a mitigation bypass vulnerability in the DOM security component of Mozilla Firefox. This vulnerability, along with numerous other critical and moderate security issues including memory safety bugs, sandbox escapes, and use-after-free flaws, were fixed in Firefox version 152. The vulnerability affects Firefox versions prior to 152. The CVSS score is 9.1, indicating critical severity with high impact on confidentiality and integrity. No known exploits in the wild have been reported. The vendor advisory confirms that the issue is fixed in Firefox 152.