medium4.3Known exploitedPublic exploit code
CVE-2026-32202
Microsoft Windows Protection Mechanism Failure Vulnerability
Exploited in the wild
This vulnerability is on the CISA Known Exploited Vulnerabilities list, added 2026-04-28. Federal due date: 2026-05-12.
Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
Public exploit code
Working exploit or proof of concept code has been published for this vulnerability. Treat unpatched systems as at risk.
- Microsoft - NTLMv2 Hash Capture2026-05-29 · remote · windows
Impact
Microsoft Windows Shell contains a protection mechanism failure vulnerability that allows an unauthorized attacker to perform spoofing over a network.
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Microsoft | Windows 10 1607 | before 10.0.14393.9060 |
| Microsoft | Windows 10 1809 | before 10.0.17763.8644 |
| Microsoft | Windows 10 21h2 | before 10.0.19044.7184 |
| Microsoft | Windows 10 22h2 | before 10.0.19045.7184 |
| Microsoft | Windows 11 23h2 | before 10.0.22631.6936 |
| Microsoft | Windows 11 24h2 | before 10.0.26100.8246 |
| Microsoft | Windows 11 25h2 | before 10.0.26200.8246 |
| Microsoft | Windows 11 26h1 | before 10.0.28000.1836 |
| Microsoft | Windows Server 2012 | All versions Version r2 |
| Microsoft | Windows Server 2016 | before 10.0.14393.9060 |
| Microsoft | Windows Server 2019 | before 10.0.17763.8644 |
| Microsoft | Windows Server 2022 | before 10.0.20348.5020 |
Weakness classification
References
- NVD record
- CVE.org record
- CISA KEV catalog
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-32202
- https://www.vicarius.io/vsociety/posts/cve-2026-32202-detection-script-spoofing-vulnerability-in-windows-shell
- https://www.vicarius.io/vsociety/posts/cve-2026-32202-mitigation-script-spoofing-vulnerability-in-windows-shell
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-32202