Memory Safety Bugs in Firefox Affecting Mozilla
CVE-2026-16411

Currently unrated

Key Information:

Vendor: Mozilla
Status: Firefox
Vendor: CVE Published:; 21 July 2026

What is CVE-2026-16411?

Multiple memory safety bugs discovered in Firefox 152 present a risk of memory corruption. While exploitation is not straightforward, successful execution may enable arbitrary code to run. Mozilla addressed these vulnerabilities in Firefox 153, enhancing the security posture of users by mitigating these potential risks.

Affected Version(s)

Firefox 153

References

https://bugzilla.mozilla.org/buglist.cgi?bug_id=1420800%2...

https://bugzilla.mozilla.org/buglist.cgi?bug_id=2006467%2...

https://bugzilla.mozilla.org/buglist.cgi?bug_id=2048936%2...

Download the Critical Vulnerability Management Cheat Sheet

Timeline

Vulnerability published
Jul 21, 2026
Vulnerability Reserved
Jul 20, 2026

Credit

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

CVE-2026-16411 Data

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