CVE-2026-58616

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.

CVSS 3.1

3.0CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:L/I:N/A:N

EPSS

0.3% chance of exploitation in the next 30 days; higher than 22% of CVEs (scores of 2026-10-28)

CWE

CWE-362

Published

2026-08-28

Modified

2026-10-28

Record from

the NVD, synced 2026-10-28

Affected

• microsoft:edge_chromium

References

• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-58616

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