Question 1

What is CVE-2026-16390 — CVE-2026-16390?

Accepted Answer

Mitigation bypass in the Enterprise Policies component. This vulnerability was fixed in Firefox 153 and Firefox ESR 140.13.

Question 2

What is the authoritative source for CVE-2026-16390?

Accepted Answer

CVE-2026-16390 (CVE-2026-16390) is catalogued in NVD + CISA KEV + FIRST EPSS and curated for EU compliance use cases by SQUR.

CVE-2026-16390CVE-2026-16390

Description