What is CVE-2025-21745?

CVE-2025-21745 is a security advisory published by Microsoft Security Response Center (MSRC) with Medium severity. blk-cgroup: Fix class @block_class's subsystem refcount leakage

Which CVE IDs does CVE-2025-21745 cover?

CVE-2025-21745 covers the following CVE IDs: CVE-2025-21745. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

CVE-2025-21745Medium

blk-cgroup: Fix class @block_class's subsystem refcount leakage

Vendor

Microsoft Security Response Center (MSRC)

Published

June 3, 2026

Last Modified

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🔗 CVE IDs covered (1)

CVE-2025-21745 →