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Exploited vulnerability

CVE-2025-38352

TLP:CLEAR

Linux Kernel Time-of-Check Time-of-Use (TOCTOU) Race Condition Vulnerability

Linux kernel contains a time-of-check time-of-use (TOCTOU) race condition vulnerability that has a high impact on confidentiality, integrity, and availability.

Facts

  • Vendor: Linux
  • Product: Kernel
  • CVSS: 7.8
  • EPSS (probability of exploitation within 30 days): 1.4 %
  • On CISA's Known Exploited Vulnerabilities list since: 4 September 2025
  • First known exploitation: 4 September 2025
  • CISA's deadline for US federal agencies: 25 September 2025
  • Weakness: CWE-367
  • First seen by Risk Letters: 4 September 2025

Members see which Nordic sectors the flaw hits, and what to do about it.

Get the full brief

Data: NVD (public domain), CISA KEV, FIRST EPSS, MITRE ATT&CK, AlienVault OTX. NVD

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