CVE-2025-39964

Vendor

Linux kernel

Product

Kernel

EPSS

1.00 (p100)

CISA KEV

added 18 Sep 2026, due 21 Sep 2026 (41d overdue)

Weakness

CWE-362

Exposure class

Operating system

Every item in the archive that references this CVE, highest rank first. Headlines open the publisher.

1. 68
   KEV CISA KEV 18 Sep 2026

   Linux Kernel Race Condition Vulnerability

   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.

   KEV · due 21 Sep 2026 (overdue) Fix available CVE-2025-39964 Linux kernel
2. 58
   CISA alert CISA 18 Sep 2026

   CISA Adds Two Known Exploited Vulnerabilities to Catalog

   CISA has added two new vulnerabilities to its Known Exploited Vulnerabilities (KEV) Catalog , based on evidence of active exploitation. CVE-2025-39964 Linux Kernel Race Condition Vulnerability CVE-2026-53266 Linux Kernel…

   Exploited CVE-2025-39964CVE-2026-53266 Linux kernel
3. 31
   Research Insikt Group 19d ago

   September 2026 CVE Landscape

   In September 2026, Insikt Group® identified 94 high-impact vulnerabilities that should be prioritized for remediation, 59 of which had a Very Critical Recorded Future Risk Score. This represents a 29% increase from last month.

   EPSS 1.00 CVE-2026-88771CVE-2026-88772CVE-2026-35273+57 more