CVE-2026-66324 json
Microsoft Edge (Chromium-based) Spoofing Vulnerability
published 2026-08-28 2 mo ago modified 2026-10-30 9 d ago also EUVD-2026-67850
- cvss
- 6.5
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.9%
- EPSS 0.9% chance of exploitation in 30 days, percentile 60%
- public exploits
- 0
- none known
Summary
External control of file name or path in Microsoft Edge (Chromium-based) allows an unauthorized attacker to perform spoofing over a network.
Patch / fix
- Microsoft Microsoft Edge (Chromium-based) 152.0.4191.53
- Microsoft Microsoft Edge for Android 152.0.4191.52
- Microsoft Microsoft Edge for iOS 152.0.4191.52
- Microsoft Microsoft Edge for Linux 152.0.4191.52
- Microsoft Microsoft Edge for MAC 152.0.4191.52
- Microsoft Microsoft Edge for Windows 152.0.4191.52
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
- Assessed
- 2 mo ago
Exploit prediction
0.92% chance of exploitation in the next 30 days, higher than 60% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 6.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C |
| CNA | 3.1 | 6.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N |
Affected products
- Microsoft Microsoft Edge (Chromium-based)
- Microsoft Microsoft Edge for Android
- Microsoft Microsoft Edge for iOS
- Microsoft Microsoft Edge for Linux
- Microsoft Microsoft Edge for MAC
- Microsoft Microsoft Edge for Windows
Classification
- Weakness
-
- CWE-73 External Control of File Name or Path
References
-
msrc.microsoft.com
/update-guide/vulnerability/CVE-2026-66324
vendor-advisory, patch
Sources
- CVE List CVE-2026-66324
- NVD CVE-2026-66324
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