What is CVE-2025-21816?

CVE-2025-21816 is a security advisory published by Microsoft Security Response Center (MSRC) with Medium severity. hrtimers: Force migrate away hrtimers queued after CPUHP_AP_HRTIMERS_DYING

Which CVE IDs does CVE-2025-21816 cover?

CVE-2025-21816 covers the following CVE IDs: CVE-2025-21816. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of CVE-2025-21816?

CVE-2025-21816 has a CVSS v3 base score of 5.5, published by Microsoft Security Response Center (MSRC).

CVE-2025-21816MediumCVSS 5.5

hrtimers: Force migrate away hrtimers queued after CPUHP_AP_HRTIMERS_DYING

Vendor

Microsoft Security Response Center (MSRC)

Published

June 3, 2026

Last Modified

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🔗 CVE IDs covered (1)

CVE-2025-21816 →