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VulnerabilityPublished Updated

CVE-2025-39697: Moderate · kernel security update

Affects bpftoolSource GCVE Database

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Mentioned vulnerabilities

Not known to be exploited : upgrade to 4.18.0-553.85.1.el8_10 when convenient.

Data as of 30 Oct 2026, 13:51 UTC

Severity
Medium

Rated Medium by Threat Radar's AI analysis · No CVSS score from NVD or the CNA

Patch
Available – fixed in 4.18.0-553.85.1.el8_10

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 24 Nov 2025

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 30 Oct 2026.

What to do

Upgrade the AlmaLinux to 4.18.0-553.85.1.el8_10.

Affected software

ProductAffectedFixed in
AlmaLinux 8bpftoolAffected
  • <4.18.0-553.85.1.el8_10
Fixed in
  • 4.18.0-553.85.1.el8_10
AlmaLinux 8kernelAffected
  • <4.18.0-553.85.1.el8_10
Fixed in
  • 4.18.0-553.85.1.el8_10
AlmaLinux 8kernel-abi-stablelistsAffected
  • <4.18.0-553.85.1.el8_10
Fixed in
  • 4.18.0-553.85.1.el8_10
AlmaLinux 8kernel-coreAffected
  • <4.18.0-553.85.1.el8_10
Fixed in
  • 4.18.0-553.85.1.el8_10
AlmaLinux 8kernel-cross-headersAffected
  • <4.18.0-553.85.1.el8_10
Fixed in
  • 4.18.0-553.85.1.el8_10
AlmaLinux 8kernel-debugAffected
  • <4.18.0-553.85.1.el8_10
Fixed in
  • 4.18.0-553.85.1.el8_10

Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.

AI-suggested

Apply the official kernel update to version 4.18.0-553.85.1.el8_10 or later as provided by Red Hat. A system reboot is required to activate the patch. No additional mitigation steps are indicated by the vendor advisory.

Description

A moderate severity security update addresses a race condition vulnerability in the Linux kernel's NFS subsystem (CVE-2025-39697). This flaw involves a race when updating an existing write operation. The update is available for Red Hat Enterprise Linux 8 and related products, requiring a system reboot to apply the fix.

References

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