CVE-2026-66798

medium Microsoft
CVSS v3 Base Score
4.3
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L
EPSS Score
0.6%
Exploitation probability in 30 days
Top 56% most likely to be exploited
Attack Characteristics
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Confidentiality
None
Integrity
None
Availability
Low
Published: August 28, 2026 (8 days ago)
Last Modified: September 1, 2026
Vendor: Microsoft
Source: NVD

Description

Use after free in Microsoft Edge (Chromium-based) allows an unauthorized attacker to execute code over a network.

CWE

CWE-416

Affected Products

microsoft edge chromium

References

🔗 msrc.microsoft.com