CyberRota Analysis
AI-GeneratedA critical site isolation vulnerability in the Networking: HTTP component of Firefox and Thunderbird could allow attackers to exploit cross-site data leaks, potentially compromising sensitive user information. Organizations and users relying on these applications should prioritize updates to versions 153 or ESR 140.13 to mitigate the risk of exploitation.
CVE
CVE-2026-16375
Severity
CRITICAL
CVSS
9.8
EPSS
0.21%
Firefox
Original NVD Description
Site isolation issue in the Networking: HTTP component. This vulnerability was fixed in Firefox 153, Firefox ESR 140.13, Thunderbird 153, and Thunderbird 140.13.
Related CVEs
Other vulnerabilities affecting the same vendor(s)