VulnerabilityPublished 2 Sep 2025Updated 30 Oct 2026

CVE-2024-27407: linux-gke, linux-ibm-5.15, linux-kvm vulnerabilities

Affects Linux kernelSource GCVE Database

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Not known to be exploited · fixed in 5.15.0-1085.88~20.04.1 : 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 5.15.0-1085.88~20.04.1, 5.15.0-1088.94, 5.15.0-1087.92

Exploitation evidence

Disclosed: evidence found.
CVE published 2 Sep 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.

Disclosed: The CVE record is public on cve.org. Its publication is t = 0.
Detectable: A public nuclei template can find exposed instances, for defenders and attackers alike.
Weaponized: A Metasploit exploit module or Exploit-DB entry exists (Metasploit scanner modules do not count), or CISA SSVC or the CVSS exploit maturity reports a public proof of concept.
Exploited in the wild: CISA KEV lists it, CISA SSVC rates exploitation active, or a source reports attacks.
Observed by OffSeq Mirage: OffSeq Mirage honeypot sensors recorded attack traffic for this CVE, or found exposed hosts without attack traffic.

Moments are spaced evenly, not to scale; a dashed line marks a gap of six months or more. Deltas count from t = 0. Sources that give only a date (CISA KEV, Exploit-DB, or a time of exactly 00:00Z) read “same day” rather than hours. Metasploit modules carry the flaw’s disclosure date, not their release date, and nuclei templates carry no date, so both appear above but not on the timeline.

usn-7726-4

What to do

Upgrade the Ubuntu to 5.15.0-1085.88~20.04.1 (linux-ibm-5.15 package) or 5.15.0-1088.94 (linux-gke package) or 5.15.0-1087.92 (linux-kvm package).

Patches and advisories

ubuntu.com/security/notices/USN-7726-4 (opens in a new tab)

Affected software

Product	Affected	Fixed in
Ubuntu 22.04 LTSlinux-gke`pkg:deb/ubuntu/linux-gke?arch=source&distro=jammy`Other threats	Affected <5.15.0-1088.94	Fixed in 5.15.0-1088.94
Ubuntu 22.04 LTSlinux-kvm`pkg:deb/ubuntu/linux-kvm?arch=source&distro=jammy`Other threats	Affected <5.15.0-1087.92	Fixed in 5.15.0-1087.92
Ubuntu Pro 20.04 LTSlinux-ibm-5.15`pkg:deb/ubuntu/linux-ibm-5.15?arch=source&distro=esm-infra/focal`Other threats	Affected <5.15.0-1085.88~20.04.1	Fixed in 5.15.0-1085.88~20.04.1

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 should be applied by updating to the fixed kernel versions listed in the Ubuntu advisory USN-7726-4. After updating, a system reboot is required to activate the fixes. Due to an ABI change, any third-party kernel modules must be recompiled and reinstalled. Users of Ubuntu 20.04 LTS and 22.04 LTS should follow the update instructions provided by Ubuntu to ensure full remediation.

Description

Multiple security vulnerabilities were discovered in the Linux kernel affecting the NTFS3 file system and network traffic control subsystems. These flaws could potentially allow an attacker to compromise the system. Fixes have been released for various Linux kernel versions used in Ubuntu 20.04 LTS and 22.04 LTS, including kernels for IBM cloud, Google Container Engine, and KVM environments. Users are advised to update and reboot their systems to apply the patches. Due to ABI changes, third-party kernel modules may need recompilation after the update.

Impact

An attacker could potentially exploit these vulnerabilities to compromise the affected Linux systems. The exact nature of the compromise is not detailed, but the vulnerabilities affect critical kernel subsystems related to file system handling and network traffic control, which could impact system integrity and security.

Summary

Several security issues in the Linux kernel, specifically in the NTFS3 file system and network traffic control subsystems, were identified and addressed. These vulnerabilities could allow an attacker to compromise affected systems. The issues are tracked under CVE-2024-27407 and related CVEs. Fixes have been incorporated into updated kernel packages for Ubuntu 20.04 LTS and 22.04 LTS, including linux-ibm-5.15, linux-gke, and linux-kvm variants. The update requires a system reboot and recompilation of third-party kernel modules due to ABI changes.

References

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