What’s Vulnerable › Vulnerabilities
CVE-2026-66324: Microsoft Edge (Chromium-based) Spoofing Vulnerability
- Severity: medium (CVSS 6.5 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 0.9% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2026-08-28 · updated 2026-10-30
- Weakness: CWE-73
Description
External control of file name or path in Microsoft Edge (Chromium-based) allows an unauthorized attacker to perform spoofing over a network.
Affected products
- Microsoft Edge (Chromium): before 152.0.4191.53 — fixed in 152.0.4191.53
- Microsoft Edge: from 1.0.0.0 before 152.0.4191.52 — fixed in 152.0.4191.52
- Microsoft Edge (Chromium): from 1.0.0.0 before 152.0.4191.53 — fixed in 152.0.4191.53
- Microsoft Edge for Linux: from 1.0.0 before 152.0.4191.52 — fixed in 152.0.4191.52
- Microsoft Edge for MAC: from 1.0.0.0 before 152.0.4191.52 — fixed in 152.0.4191.52
- Microsoft Edge for Windows: from 1.0.0.0 before 152.0.4191.52 — fixed in 152.0.4191.52
How to fix
Upgrade to a fixed version: Microsoft Edge (Chromium) 152.0.4191.53; Microsoft Edge 152.0.4191.52; Microsoft Edge (Chromium) 152.0.4191.53; Microsoft Edge for Linux 152.0.4191.52; Microsoft Edge for MAC 152.0.4191.52; Microsoft Edge for Windows 152.0.4191.52. Check the vendor advisory for mitigations.
References
Get alerted when CVE-2026-66324 or the next vulnerability affects your stack