Is CVE-2026-74988 being exploited?

No public exploit is currently tracked.

Back

CVE-2026-74988

Description

Internally found bugs present in Firefox ESR 153.0 and Firefox 153. Some of these bugs showed evidence of memory corruption or another security-relevant defect and we presume that with enough effort some of these could have been exploited. This vulnerability was fixed in Firefox 154 and Firefox ESR 153.1.