CVE-2025-71289: linux-lowlatency, linux-lowlatency-hwe-6.8 vulnerabilities
Affects Linux kernelSource GCVE Database
Not known to be exploited · CVSS 7.1 High · fixed in 6.8.0-139.139.1~22.04.1 : patch Linux kernel soon.
Data as of 5 Nov 2026, 00:01 UTC
Thin evidence
One scorer or none| CNA (Linux) | CVSS 3.1 | 7.1 |
|---|
- EPSS
- 0.2% chance of exploitation in 30 days – higher than 18% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
- Patch
- Available – fixed in 6.8.0-139.139.1~22.04.1, 6.8.0-139.139.1
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:HExploitation evidence
Disclosed: evidence found.
CVE published 6 May 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 4 Nov 2026.
What to do
Upgrade the Ubuntu to 6.8.0-139.139.1~22.04.1 (linux-lowlatency-hwe-6.8 package) or 6.8.0-139.139.1 (linux-lowlatency package).
Patches and advisories
Affected software
| Product | Affected | Fixed in |
|---|---|---|
Ubuntu 24.04 LTSlinux-lowlatencypkg:deb/ubuntu/linux-lowlatency?arch=source&distro=nobleOther threats | Affected
| Fixed in
|
Ubuntu 22.04 LTSlinux-lowlatency-hwe-6.8pkg:deb/ubuntu/linux-lowlatency-hwe-6.8?arch=source&distro=jammyOther threats | Affected
| Fixed in
|
Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.
AI-suggested
Apply the official security updates provided by Ubuntu for the linux-lowlatency and linux-lowlatency-hwe-6.8 kernel packages to versions 6.8.0-139.139.1 or 6.8.0-139.139.1~22.04.1 as appropriate. Reboot the system after updating to ensure all changes take effect. Recompile and reinstall any third-party kernel modules due to ABI changes introduced by the update. No other immediate actions are required beyond applying these patches.
Description
Multiple security vulnerabilities were discovered in the Linux kernel affecting numerous subsystems including various architectures, drivers, networking components, filesystems, and security frameworks. These flaws could potentially allow an attacker to compromise the system. The issues are addressed in updated linux-lowlatency and linux-lowlatency-hwe-6.8 kernel packages for Ubuntu 22.04 LTS and 24.04 LTS. Users must apply the updates and reboot to mitigate the risks.
References
- ubuntu.com/security/notices/USN-8729-4 (opens in a new tab)
- ubuntu.com/security/CVE-2025-71289 (opens in a new tab)
- ubuntu.com/security/CVE-2026-23469 (opens in a new tab)
- ubuntu.com/security/CVE-2026-31420 (opens in a new tab)
- ubuntu.com/security/CVE-2026-31486 (opens in a new tab)
- ubuntu.com/security/CVE-2026-31560 (opens in a new tab)
- ubuntu.com/security/CVE-2026-46158 (opens in a new tab)
- ubuntu.com/security/CVE-2026-46170 (opens in a new tab)
- ubuntu.com/security/CVE-2026-46275 (opens in a new tab)
- ubuntu.com/security/CVE-2026-46315 (opens in a new tab)
- ubuntu.com/security/CVE-2026-52912 (opens in a new tab)
- ubuntu.com/security/CVE-2026-52915 (opens in a new tab)
- ubuntu.com/security/CVE-2026-52916 (opens in a new tab)
- ubuntu.com/security/CVE-2026-52918 (opens in a new tab)
- ubuntu.com/security/CVE-2026-52919 (opens in a new tab)
- ubuntu.com/security/CVE-2026-52921 (opens in a new tab)
- ubuntu.com/security/CVE-2026-52922 (opens in a new tab)
- ubuntu.com/security/CVE-2026-52926 (opens in a new tab)
- ubuntu.com/security/CVE-2026-52941 (opens in a new tab)
- ubuntu.com/security/CVE-2026-53357 (opens in a new tab)