Microsoft Windows Protection Mechanism Failure Vulnerability

MEDIUM 4.3EXPLOITED (CISA KEV)CVE-2026-32202 · Published 14/04/2026 · updated 26/10/2026

Microsoft Windows Protection Mechanism Failure Vulnerability. Actively exploited: CISA added this vulnerability to its Known Exploited Vulnerabilities catalog on 28/04/2026. Patch affected systems as an emergency.

Package	Affected versions	Patched versions
Windows Microsoft	Versions not published yet (product named by CISA KEV)

Description

Protection mechanism failure in Windows Shell allows an unauthorized attacker to perform spoofing over a network.

References

msrc.microsoft.com/update-guide/vulnerability/CVE-2026-32202 · Vendor Advisory
vicarius.io/vsociety/posts/cve-2026-32202-detection-script-spoofing-vulnerability-in-windows-shell · Third Party Advisory
vicarius.io/vsociety/posts/cve-2026-32202-mitigation-script-spoofing-vulnerability-in-windows-shell · Mitigation
cisa.gov/known-exploited-vulnerabilities-catalog · Third Party Advisory
CISA KEV · CVE-2026-32202

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