CVE-2026-16389 is a vulnerability in Mozilla Firefox
Published on July 21, 2026
Incorrect boundary conditions, integer overflow in the Libraries component in NSS
Incorrect boundary conditions, integer overflow in the Libraries component in NSS. This vulnerability was fixed in Firefox 153.
Products Associated with CVE-2026-16389
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Affected Versions
Mozilla Firefox:- Version 153, <= * is unaffected.