CVE-2025-38561: linux-fips, linux-aws-fips, linux-gcp-fips vulnerabilities
Affects Linux kernelSource GCVE Database
Mentioned vulnerabilities
Not known to be exploited · fixed in 6.8.0-1045.47+fips1 : patch Linux kernel soon.
Data as of 3 Nov 2026, 17:31 UTC
Rated High by Threat Radar's AI analysis · No CVSS score from NVD or the CNA
- Patch
- Available – fixed in 6.8.0-1045.47+fips1, 6.8.0-94.96+fips1, 6.8.0-1046.49+fips1
Exploitation evidence
Disclosed: evidence found.
CVE published 6 Feb 2026
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 3 Nov 2026.
What to do
Upgrade the Ubuntu to 6.8.0-1045.47+fips1 (linux-aws-fips package) or 6.8.0-94.96+fips1 (linux-fips package) or 6.8.0-1046.49+fips1 (linux-gcp-fips package).
Patches and advisories
Affected software
| Product | Affected | Fixed in |
|---|---|---|
Ubuntu Pro FIPS-updates 24.04 LTSlinux-aws-fipspkg:deb/ubuntu/linux-aws-fips?arch=source&distro=fips-updates/nobleOther threats | Affected
| Fixed in
|
Ubuntu Pro FIPS-updates 24.04 LTSlinux-fipspkg:deb/ubuntu/linux-fips?arch=source&distro=fips-updates/nobleOther threats | Affected
| Fixed in
|
Ubuntu Pro FIPS-updates 24.04 LTSlinux-gcp-fipspkg:deb/ubuntu/linux-gcp-fips?arch=source&distro=fips-updates/nobleOther threats | 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
A patch is available and users should update their Linux kernel packages to the fixed versions 6.8.0-1045.47+fips1, 6.8.0-94.96+fips1, or 6.8.0-1046.49+fips1 as appropriate. After updating, a system reboot is required to apply the changes. Due to an ABI change, all third-party kernel modules must be recompiled and reinstalled. Follow the official Ubuntu security notice USN-8015-3 for detailed update instructions.
Description
Multiple security vulnerabilities were discovered in the Linux kernel affecting the Cryptographic API, SMB network file system, and io_uring subsystem. These flaws could potentially allow an attacker to compromise the system. Fixes have been released in updated Linux kernel packages for various FIPS-certified builds, including those for AWS and GCP environments. Users must apply these updates and reboot their systems to ensure protection. Due to ABI changes, recompilation of third-party kernel modules is required after updating.