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CVE-2026-21525

Microsoft Windows NULL Pointer Dereference Vulnerability

Description

Microsoft Windows Remote Access Connection Manager contains a NULL pointer dereference that could allow an unauthorized attacker to deny service locally.

Recommended 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.

CISA remediation due date for U.S. federal agencies: 3 Mar 2026.

Collected automatically from public sources. Verify affected versions and fixes in the vendor's notice before acting.