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VulnerabilityPublished Updated

CVE-2024-27407: linux-azure, linux-azure-5.15, linux-azure-fips vulnerabilities

Affects Linux kernelSource GCVE Database

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Not known to be exploited · fixed in 5.15.0-1095.104~20.04.1 : patch Linux kernel soon.

Data as of 31 Oct 2026, 01:36 UTC

Severity
High

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

Patch
Available – fixed in 5.15.0-1095.104~20.04.1, 5.15.0-1095.104, 5.15.0-1095.104+fips1

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 18 Sep 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 Ubuntu to 5.15.0-1095.104~20.04.1 (linux-azure-5.15 package) or 5.15.0-1095.104 (linux-azure package) or 5.15.0-1095.104+fips1 (linux-azure-fips package).

Affected software

ProductAffectedFixed in
Ubuntu 22.04 LTSlinux-azurepkg:deb/ubuntu/linux-azure?arch=source&distro=jammyOther threatsAffected
  • <5.15.0-1095.104
Fixed in
  • 5.15.0-1095.104
Ubuntu Pro FIPS-updates 22.04 LTSlinux-azure-fipspkg:deb/ubuntu/linux-azure-fips?arch=source&distro=fips-updates/jammyOther threatsAffected
  • <5.15.0-1095.104+fips1
Fixed in
  • 5.15.0-1095.104+fips1
Ubuntu Pro 20.04 LTSlinux-azure-5.15pkg:deb/ubuntu/linux-azure-5.15?arch=source&distro=esm-infra/focalOther threatsAffected
  • <5.15.0-1095.104~20.04.1
Fixed in
  • 5.15.0-1095.104~20.04.1

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-azure kernel packages to version 5.15.0-1095.104~20.04.1 or later as provided by the Ubuntu security notice USN-7726-5. After updating, a system reboot is required to apply the fixes. Due to ABI changes, all third-party kernel modules must be recompiled and reinstalled to maintain compatibility. Following these steps will mitigate the vulnerabilities.

Description

Multiple security vulnerabilities were identified in the Linux kernel used in the linux-azure, linux-azure-5.15, and linux-azure-fips packages. These flaws affect the NTFS3 file system and network traffic control subsystems and could potentially allow an attacker to compromise the system. Fixes for these issues have been released and are available in updated kernel versions. Users must apply the updates and reboot to ensure protection. Due to ABI changes, recompilation of third-party kernel modules is required after updating.

References

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