CVE-2025-39697: Moderate · kernel security update
Affects bpftoolSource GCVE Database
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
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
Disclosed: evidence found.
CVE published 24 Nov 2025
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by 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.
Patches and advisories
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| AlmaLinux 8bpftool | Affected
| Fixed in
|
| AlmaLinux 8kernel | Affected
| Fixed in
|
| AlmaLinux 8kernel-abi-stablelists | Affected
| Fixed in
|
| AlmaLinux 8kernel-core | Affected
| Fixed in
|
| AlmaLinux 8kernel-cross-headers | Affected
| Fixed in
|
| AlmaLinux 8kernel-debug | Affected
| Fixed in
|
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
- access.redhat.com/errata/RHSA-2025:21917 (opens in a new tab)
- access.redhat.com/security/cve/CVE-2025-39697 (opens in a new tab)
- access.redhat.com/security/cve/CVE-2025-39971 (opens in a new tab)
- bugzilla.redhat.com/2393481 (opens in a new tab)
- bugzilla.redhat.com/2404108 (opens in a new tab)
- errata.almalinux.org/8/ALSA-2025-21917.html (opens in a new tab)
- redhat.com/security/data/cve/CVE-2025-39973.html (opens in a new tab)