VulnerabilityPublished 24 Sep 2025Updated 3 Nov 2026

CVE-2025-38003: linux-realtime-6.14 vulnerabilities

Affects Linux kernelSource GCVE Database

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Authoritative record:CVE-2025-38003· High

Not known to be exploited : upgrade to 6.14.0-1012.12~24.04.1 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 6.14.0-1012.12~24.04.1

Exploitation evidence

Disclosed: evidence found.
CVE published 8 Jun 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 3 Nov 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-7769-2

What to do

Upgrade the Ubuntu linux-realtime-6.14 package to 6.14.0-1012.12~24.04.1.

Patches and advisories

ubuntu.com/security/notices/USN-7769-2 (opens in a new tab)

Affected software

Product	Affected	Fixed in
Ubuntu Pro Realtime 24.04 LTSlinux-realtime-6.14`pkg:deb/ubuntu/linux-realtime-6.14?arch=source&distro=realtime/noble`Other threats	Affected <6.14.0-1012.12~24.04.1	Fixed in 6.14.0-1012.12~24.04.1

Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.

AI-suggested

A security update is available and should be applied immediately. Users should upgrade to linux-image-6.14.0-1012.12~24.04.1 or later and reboot their systems to apply the fixes. Due to an ABI change, all third-party kernel modules must be recompiled and reinstalled after the update. Follow the vendor advisory at https://ubuntu.com/security/notices/USN-7769-2 for detailed update instructions.

Description

Multiple security vulnerabilities were discovered in the Linux kernel version linux-realtime-6.14 affecting a wide range of subsystems including various architectures, drivers, filesystems, and networking components. These issues could potentially allow an attacker to compromise the system. A security update has been released to address these flaws, and users are advised to apply the update and reboot their systems. Due to an ABI change, recompilation and reinstallation of third-party kernel modules may be required.

Impact

An attacker could potentially exploit these vulnerabilities to compromise the affected system. The broad range of affected subsystems indicates multiple possible attack vectors, potentially impacting system integrity, confidentiality, and availability. No known exploits in the wild have been reported at this time.

Summary

The linux-realtime-6.14 kernel contains numerous security vulnerabilities across many subsystems such as ARM64, PowerPC, x86 architectures, various drivers (Bluetooth, USB, GPU, network, media, etc.), filesystems (BTRFS, NTFS3, SMB, etc.), networking stacks (IPv4, IPv6, Netfilter, TLS), and kernel frameworks (BPF, io_uring, tracing, memory management). These vulnerabilities could be exploited to compromise system security. The issues are collectively addressed in the security update linux-image-6.14.0-1012.12~24.04.1 provided by Ubuntu for the 24.04 LTS Real-time kernel. The update requires a system reboot and recompilation of third-party kernel modules due to ABI changes.

References

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