Microsoft Windows Protection Mechanism Failure Vulnerability
Microsoft — Windows
- Added to KEV catalog
- 28 April 2026
- Federal remediation due date
- 12 May 2026
- Weakness classification (CWE)
- CWE-693
CISA Description
Microsoft Windows Shell contains a protection mechanism failure vulnerability that allows an unauthorized attacker to perform spoofing over a network.
Required action
Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
Notes
https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2026-32202 ; https://nvd.nist.gov/vuln/detail/CVE-2026-32202
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