VulnerabilityPublished 6 Apr 2026Updated 3 Nov 2026

CVE-2025-40246: linux-oem-6.17 vulnerabilities

Affects Linux kernelSource GCVE Database

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Mentioned vulnerabilities

Not known to be exploited : upgrade to 6.17.0-1017.17 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 6.17.0-1017.17

Exploitation evidence

Disclosed: evidence found.
CVE published 6 Apr 2026
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-8152-1

What to do

Upgrade the Ubuntu linux-oem-6.17 package to 6.17.0-1017.17.

Patches and advisories

ubuntu.com/security/notices/USN-8152-1 (opens in a new tab)

Affected software

Product	Affected	Fixed in
Ubuntu 24.04 LTSlinux-oem-6.17`pkg:deb/ubuntu/linux-oem-6.17?arch=source&distro=noble`Other threats	Affected <6.17.0-1017.17	Fixed in 6.17.0-1017.17

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 promptly. The fixed linux-oem-6.17 kernel version is 6.17.0-1017.17. Users should update their systems to this version or later and reboot to apply the fixes. Due to an ABI change, recompilation and reinstallation of third-party kernel modules may be required. Follow the vendor advisory at https://ubuntu.com/security/notices/USN-8152-1 for detailed update instructions.

Description

Multiple security vulnerabilities were discovered in the linux-oem-6.17 kernel, including issues affecting AMD Zen 5 processors' RDSEED instruction entropy handling and numerous flaws in the AppArmor Linux kernel Security Module. These vulnerabilities could allow local attackers to cause denial of service, expose sensitive kernel memory, escalate privileges, or escape containers. The update addresses a wide range of kernel subsystems and drivers to mitigate these issues.

Impact

Local attackers could exploit these vulnerabilities to influence entropy generation on AMD Zen 5 processors, leading to compromised confidentiality and integrity. Vulnerabilities in AppArmor LSM could allow unprivileged users to load, replace, or remove AppArmor profiles, resulting in denial of service, exposure of kernel memory, privilege escalation, or container escape. Other kernel flaws affect numerous subsystems and drivers, potentially enabling attackers to compromise system integrity, confidentiality, or availability.

References

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