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Vendor advisories

Microsoft Security Response Center

Browse 4,355 advisories from this official source. Search by product, CVE, severity, or advisory ID.

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4,355 advisories

Each date says whether the vendor published or updated the bulletin. A vendor bulletin describes products that may be affected. It does not prove that the vulnerable product or version is installed in your environment.

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Microsoft Security Response CenterCVE-2026-58616
MediumCVSS 4.4

Copilot Chat (Microsoft Edge) Information Disclosure Vulnerability

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 productsMicrosoft Edge (Chromium-based)
Fixed versions152.0.4191.53
Vendor guidance

Release Notes

CVE-2026-58616
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