CVE-2026-16411 PUBLISHED

Memory safety bugs present in Firefox 152. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability was fixed in Firefox 153.

• C.M.Chang, Christian Holler, David Parks, Dennis Jackson, Gabriele Svelto, Hafiizh, Henrik Skupin, Jan de Mooij, Jens Stutte, Paul Theriault, Randell Jesup, Rob Wu, Tom Ritter, Tom Schuster and the Mozilla Fuzzing Team

• Moderate-severity memory safety bugs fixed in Firefox 153
• Low-severity memory safety bugs fixed in Firefox 153
• High-severity memory safety bugs fixed in Firefox 153
• https://www.mozilla.org/security/advisories/mfsa2026-68/