cbcvebase.
CVE-2026-58616
published 2026-08-28

CVE-2026-58616: Concurrent execution using shared resource with improper synchronization ('race condition') in Copilot Chat (Microsoft Edge) allows an authorized attacker to…

PriorityP413low3CVSS 3.1
AVNACHPRLUIRSCCLINAN
EPSS
0.29%
21.0th percentile
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.

Affected

7 ranges
VendorProductVersion rangeFixed in
microsoftedge_chromium< 152.0.4191.53152.0.4191.53
microsoftmicrosoft_edge——
microsoftmicrosoft_edge_for_android>= 1.0.0.0 < 152.0.4191.52152.0.4191.52
microsoftmicrosoft_edge_for_ios>= 1.0.0.0 < 152.0.4191.52152.0.4191.52
microsoftmicrosoft_edge_for_linux>= 1.0.0 < 152.0.4191.52152.0.4191.52
microsoftmicrosoft_edge_for_mac>= 1.0.0.0 < 152.0.4191.52152.0.4191.52
microsoftmicrosoft_edge_for_windows>= 1.0.0.0 < 152.0.4191.52152.0.4191.52
Stop checking back — get the weekly exploitation signal.

Every Monday: what got weaponized or added to CISA KEV in the last seven days — each CVE cross-linked to its PoC, Nuclei template, and detection rule. Free, one email a week, unsubscribe in one click.