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CVE-2025-37756VulnerabilityPublished Updated

linux, linux-aws, linux-gcp, linux-gcp-6.8, linux-gke, linux-gkeop, linux-ibm, linux-ibm-6.8, linux-lowlatency

Affects Linux kernelSource GCVE Database

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Not known to be exploited · fixed in 6.8.0-1041.43~22.04.1 : patch Linux kernel soon.

Data as of 31 Oct 2026, 01:35 UTC

Severity
High

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

Patch
Available – fixed in 6.8.0-1041.43~22.04.1, 6.8.0-1038.38~22.04.1, 6.8.0-85.85.1~22.04.1 +10

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 2 Oct 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 to a fixed release listed under Affected software.

Affected software

ProductAffectedFixed in
Ubuntu 24.04 LTSlinuxpkg:deb/ubuntu/linux?arch=source&distro=nobleOther threatsAffected
  • <6.8.0-85.85
Fixed in
  • 6.8.0-85.85
Ubuntu 24.04 LTSlinux-awspkg:deb/ubuntu/linux-aws?arch=source&distro=nobleOther threatsAffected
  • <6.8.0-1040.42
Fixed in
  • 6.8.0-1040.42
Ubuntu 24.04 LTSlinux-gcppkg:deb/ubuntu/linux-gcp?arch=source&distro=nobleOther threatsAffected
  • <6.8.0-1041.43
Fixed in
  • 6.8.0-1041.43
Ubuntu 24.04 LTSlinux-gkepkg:deb/ubuntu/linux-gke?arch=source&distro=nobleOther threatsAffected
  • <6.8.0-1037.41
Fixed in
  • 6.8.0-1037.41
Ubuntu 24.04 LTSlinux-gkeoppkg:deb/ubuntu/linux-gkeop?arch=source&distro=nobleOther threatsAffected
  • <6.8.0-1024.26
Fixed in
  • 6.8.0-1024.26
Ubuntu 24.04 LTSlinux-ibmpkg:deb/ubuntu/linux-ibm?arch=source&distro=nobleOther threatsAffected
  • <6.8.0-1038.38
Fixed in
  • 6.8.0-1038.38

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 should be applied immediately by updating to the fixed kernel versions listed in the Ubuntu advisory USN-7792-1. After updating, a system reboot is required to activate the fixes. Additionally, due to an ABI change in the kernel, all third-party kernel modules must be recompiled and reinstalled to maintain system stability and functionality.

Description

Multiple security vulnerabilities were discovered in the Linux kernel affecting various subsystems including Ext4 file system, packet sockets, network traffic control, TLS protocol, VMware vSockets driver, and the XFRM subsystem. These flaws could potentially allow an attacker to compromise the system. Updates fixing these issues have been released for several Linux kernel packages used in Ubuntu 22.04 LTS and 24.04 LTS, including specialized kernels for cloud platforms such as AWS, GCP, IBM, and NVIDIA. A system reboot is required after applying the updates, and recompilation of third-party kernel modules is necessary due to ABI changes.

References

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