CVE-2026-66313

medium Microsoft
CVSS v3 Base Score
6.8
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N
EPSS Score
0.2%
Exploitation probability in 30 days
Top 85% most likely to be exploited
Attack Characteristics
Attack Vector
Local
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Confidentiality
High
Integrity
Low
Availability
None
Published: August 4, 2026 (34 days ago)
Last Modified: August 6, 2026
Vendor: Microsoft
Source: NVD

Description

Origin validation error in Microsoft Edge (Chromium-based) allows an unauthorized attacker to perform tampering locally.

CWE

CWE-346

Affected Products

microsoft edge chromium

References

🔗 msrc.microsoft.com