Mozilla Releases Firefox 157 with 76 Security Fixes, Shifts to Individual CVE Reporting
Mozilla Foundation has released Firefox 157, addressing 76 vulnerabilities rated at various severity levels. The update also includes patches for the extended support releases Firefox ESR 153.4, ESR 140.17, and ESR 115.42. A key change in this release involves Mozilla's new approach to publishing security advisories, moving from grouping multiple memory safety issues under single CVEs to reporting them individually. Among the high-severity issues fixed are sandbox escape flaws, privilege escalation bugs, use-after-free errors, uninitialized memory problems, and JIT compiler mistakes affecting components such as DOM, Graphics, WebGPU, WebAssembly, and Networking. The ESR versions received 62, 43, and 31 fixes respectively, with 34 rated high in the latest branch. All listed CVEs range from CVE-2026-100756 through CVE-2026-100831.
Security NEXTSep 30, 2026Translated from Japanese