CVE Catalog
CVE-2026-16380
CriticalCVSS 9.1Exploitation Probability (EPSS)
Low risk0.35%
27th percentile - higher than 27% of all known CVEs
Summary
Mitigation bypass in the Networking component in Firefox and Thunderbird. Fixed in Firefox 153 and Thunderbird 153.
Risk Assessment
Risk of bypassing network security controls, potentially leading to unauthorized access or data leakage.
Recommendation
Update Firefox to version 153 or later and Thunderbird to version 153 or later.
Original NVD description (English source)
Mitigation bypass in the Networking component. This vulnerability was fixed in Firefox 153 and Thunderbird 153.