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CISA KEV: Linux Kernel — Linux Kernel Race Condition Vulnerability

·Source: CISA KEV

Updated:

Executive Summary

Linux Kernel contains a race condition vulnerability which allows concurrent writes to the same AF_ALG socket causing data to be unpredictably interleaved and creating inconsistencies in the socket's internal state.

Analysis

Linux Kernel contains a race condition vulnerability which allows concurrent writes to the same AF_ALG socket causing data to be unpredictably interleaved and creating inconsistencies in the socket's internal state. Added to CISA Known Exploited Vulnerabilities catalog on 2026-09-18. Remediation due: 2026-09-21.

Indicators of Compromise (1)

CVE (1)
CVE-2025-39964
NVDMITRE CVE
Source Attribution

Originally published by CISA KEV on Sep 18, 2026. Verified by: CISA.

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