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Exploited Added to CISA's list April 28, 2026

Microsoft Windows: Protection Mechanism Failure Vulnerability

What to do: Run Windows Update and restart the PC.

Affects
Microsoft Windows
Identifier
CVE-2026-32202
What it is
Microsoft Windows Shell contains a protection mechanism failure vulnerability that allows an unauthorized attacker to perform spoofing over a network.
Official guidance
Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
Details
National Vulnerability Database entry

"Exploited" means CISA has evidence attackers are using this flaw. Being on the list does not mean your device was attacked; it means the update matters.