CVE-2026-58616

medium Microsoft
CVSS v3 Base Score
4.4
CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:L/I:L/A:N
EPSS Score
0.2%
Exploitation probability in 30 days
Top 92% most likely to be exploited
Attack Characteristics
Attack Vector
Network
Attack Complexity
High
Privileges Required
Low
User Interaction
Required
Confidentiality
Low
Integrity
Low
Availability
None
Published: August 28, 2026 (8 days ago)
Last Modified: August 31, 2026
Vendor: Microsoft
Source: NVD

Description

Concurrent execution using shared resource with improper synchronization ('race condition') in Copilot Chat (Microsoft Edge) allows an authorized attacker to disclose information over a network.

CWE

CWE-362

Affected Products

microsoft edge chromium

References

🔗 msrc.microsoft.com