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CVE-2025-38477VulnerabilityPublished Updated

linux, linux-aws, linux-aws-5.15, linux-gcp, linux-gcp-5.15, linux-gkeop, linux-hwe-5.15, linux-ibm, linux-ibm-5.15

Affects Linux kernelSource GCVE Database

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Mentioned vulnerabilities

Not known to be exploited · fixed in 5.15.0-1093.100~20.04.1 : patch Linux kernel soon.

Data as of 3 Nov 2026, 17:29 UTC

Severity
High

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

Patch
Available – fixed in 5.15.0-1093.100~20.04.1, 5.15.0-1093.102~20.04.1, 5.15.0-157.167~20.04.1 +13

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 3 Nov 2026.

What to do

Upgrade to a fixed release listed under Affected software.

Affected software

ProductAffectedFixed in
Ubuntu 22.04 LTSlinuxpkg:deb/ubuntu/linux?arch=source&distro=jammyOther threatsAffected
  • <5.15.0-157.167
Fixed in
  • 5.15.0-157.167
Ubuntu 22.04 LTSlinux-awspkg:deb/ubuntu/linux-aws?arch=source&distro=jammyOther threatsAffected
  • <5.15.0-1093.100
Fixed in
  • 5.15.0-1093.100
Ubuntu 22.04 LTSlinux-gcppkg:deb/ubuntu/linux-gcp?arch=source&distro=jammyOther threatsAffected
  • <5.15.0-1093.102
Fixed in
  • 5.15.0-1093.102
Ubuntu 22.04 LTSlinux-gkeoppkg:deb/ubuntu/linux-gkeop?arch=source&distro=jammyOther threatsAffected
  • <5.15.0-1076.84
Fixed in
  • 5.15.0-1076.84
Ubuntu 22.04 LTSlinux-ibmpkg:deb/ubuntu/linux-ibm?arch=source&distro=jammyOther threatsAffected
  • <5.15.0-1087.90
Fixed in
  • 5.15.0-1087.90
Ubuntu 22.04 LTSlinux-intel-iotgpkg:deb/ubuntu/linux-intel-iotg?arch=source&distro=jammyOther threatsAffected
  • <5.15.0-1088.94
Fixed in
  • 5.15.0-1088.94

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. Ubuntu has released fixed kernel versions as detailed in security notice USN-7793-1. After updating, a system reboot is required to activate the fixes. Due to an ABI change in the kernel, recompilation and reinstallation of any third-party kernel modules are necessary. Users should follow the official Ubuntu update instructions to ensure full remediation.

Description

Multiple security vulnerabilities were discovered in the Linux kernel affecting subsystems such as packet sockets, network traffic control, and the VMware vSockets driver. These flaws could potentially allow an attacker to compromise the system. The issues affect various Linux kernel versions including linux-aws-5.15 and related variants. Fixes have been released and are available through Ubuntu security updates. Users should apply these updates and reboot their systems to ensure protection.

References

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