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CVE-2026-21510

More InfoOfficial Page

Microsoft Windows Shell Protection Mechanism Failure Vulnerability

MicrosoftWindows

Microsoft Windows Shell contains a protection mechanism failure vulnerability that could allow an unauthorized attacker to bypass a security feature 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.

Related Information

Vendor/Project:Microsoft CorporationMicrosoft
Product:Windows
CWE:
CWE-693
Used in Ransomware:Unknown

Timeline

Date Added:10 Feb, 2026
Due Date:03 Mar, 2026

Additional Notes

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-21510 ; https://nvd.nist.gov/vuln/detail/CVE-2026-21510
Details not found