CVE-2024-57996VulnerabilityPublished 17 Sep 2025Updated 30 Oct 2026

linux, linux-aws, linux-aws-5.4, linux-bluefield, linux-gcp, linux-gcp-5.4, linux-hwe-5.4, linux-ibm, linux-ibm-5.4

Affects Linux kernelSource GCVE Database

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Not known to be exploited · fixed in 5.4.0-1150.160~18.04.1 : 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 5.4.0-1150.160~18.04.1, 5.4.0-1153.162~18.04.1, 5.4.0-221.241~18.04.1 +11

Exploitation evidence

Disclosed: evidence found.
CVE published 17 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-7754-1

What to do

Upgrade to a fixed release listed under Affected software.

Patches and advisories

ubuntu.com/security/notices/USN-7754-1 (opens in a new tab)

Affected software

Product	Affected	Fixed in
Ubuntu Pro 20.04 LTSlinux`pkg:deb/ubuntu/linux?arch=source&distro=esm-infra/focal`Other threats	Affected <5.4.0-221.241	Fixed in 5.4.0-221.241
Ubuntu Pro 20.04 LTSlinux-aws`pkg:deb/ubuntu/linux-aws?arch=source&distro=esm-infra/focal`Other threats	Affected <5.4.0-1150.160	Fixed in 5.4.0-1150.160
Ubuntu Pro 20.04 LTSlinux-bluefield`pkg:deb/ubuntu/linux-bluefield?arch=source&distro=esm-infra/focal`Other threats	Affected <5.4.0-1109.116	Fixed in 5.4.0-1109.116
Ubuntu Pro 20.04 LTSlinux-gcp`pkg:deb/ubuntu/linux-gcp?arch=source&distro=esm-infra/focal`Other threats	Affected <5.4.0-1153.162	Fixed in 5.4.0-1153.162
Ubuntu Pro 20.04 LTSlinux-ibm`pkg:deb/ubuntu/linux-ibm?arch=source&distro=esm-infra/focal`Other threats	Affected <5.4.0-1096.101	Fixed in 5.4.0-1096.101
Ubuntu Pro 20.04 LTSlinux-iot`pkg:deb/ubuntu/linux-iot?arch=source&distro=esm-infra/focal`Other threats	Affected <5.4.0-1054.57	Fixed in 5.4.0-1054.57

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 promptly. Users should update their systems to the fixed Linux kernel versions as listed in the Ubuntu advisory USN-7754-1. After updating, a system reboot is required to activate the fixes. Due to ABI changes, any third-party kernel modules must be recompiled and reinstalled. Following these steps will mitigate the vulnerabilities effectively.

Description

Multiple security vulnerabilities were discovered in the Linux kernel affecting the network traffic control subsystem. These flaws could potentially allow an attacker to compromise the system. The issues have been addressed in updated Linux kernel packages for various Ubuntu releases and platforms, including AWS, GCP, IBM cloud, Raspberry Pi, and others. Users are advised to apply the available patches and reboot their systems to complete the update process. Due to ABI changes, recompilation and reinstallation of third-party kernel modules may be necessary.

Impact

An attacker could exploit these vulnerabilities in the Linux kernel's network traffic control subsystem to potentially compromise the affected system. The exact nature of the compromise is not detailed, but the impact is considered serious enough to warrant immediate patching. No known exploits in the wild have been reported at this time.

Summary

Several security issues were identified in the Linux kernel's network traffic control subsystem, potentially enabling system compromise by attackers. The vulnerabilities are tracked under CVE-2024-57996 (among others) and affect multiple Linux kernel variants including linux-aws-5.4 and others used in Ubuntu 18.04 LTS and 20.04 LTS. Canonical has released patches for these vulnerabilities, with fixed versions starting from 5.4.0-1150.160 and later. The update requires a system reboot and recompilation of third-party kernel modules due to ABI changes. The vendor advisory is detailed in Ubuntu Security Notice USN-7754-1.

References

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