Search: CVE-2026-12327

Multiple memory safety vulnerabilities were identified in Mozilla Firefox ESR 140.11, Thunderbird ESR 140.11, Firefox 151, and Thunderbird 151. These bugs showed evidence of memory corruption and could potentially be exploited to execute arbitrary code. The issues were addressed and fixed in Firefox 152, Firefox ESR 140.12, Thunderbird 152, and Thunderbird ESR 140.12. The vulnerabilities are classified as high severity with a CVSS score of 8.1.