HIGH 7.5 Microsoft

CVE-2026-33111

Copilot Chat (Microsoft Edge) Information Disclosure Vulnerability

Microsoft Security Update 2026-May: Copilot Chat (Microsoft Edge) Information Disclosure Vulnerability

Affected Products

Copilot Chat (Microsoft Edge)

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-33111
https://nvd.nist.gov/vuln/detail/CVE-2026-33111

Published: 2026-05-12 · Source: Microsoft · Feed updated: 2026-08-04

This high severity vulnerability with a CVSS score of 7.5 was published on 2026-05-12 via Microsoft. Affected: Copilot Chat (Microsoft Edge).

vulnfeed aggregates 9214 vulnerabilities from NVD, CISA KEV, Ubuntu, Debian, Red Hat, Kubernetes, Exploit-DB, OSS-Security, GitHub and OpenStack — updated every 4 hours.