CVE-2025-39932

mediumCVSS 5.7covered by 1 sourcefirst seen 2026-08-06

CSIRTS triage

What: Missing work synchronization call in smbd_destroy() for post_send_credits_work cleanup.
Who is affected: Systems running Microsoft SMB client code with active SMB sessions.
Urgency: Medium urgency; improper cleanup can lead to resource leaks or race conditions.
Action: Apply the patch ensuring disable_work_sync() is called in smbd_destroy().

AI-assisted analysis generated from the source advisory — verify against the original.

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Low exploitation risk0.27% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 19% of all EPSS-scored CVEs.

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