CVE-2026-72200: Linux kernel · ntfs: detect mapping-pairs LCN accumulator overflow
Affects Linux kernelSource GCVE Database
Not known to be exploited · CVSS 9.8 Critical : upgrade to 6.8.0-1035.38 as a priority.
Data as of 26 Oct 2026, 14:05 UTC
- EPSS
- 0.6% chance of exploitation in 30 days – higher than 51% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
- Patch
- Available – fixed in 6.8.0-1035.38
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HExploitation evidence
Disclosed: evidence found.
CVE published 15 Aug 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: 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 26 Oct 2026.
What to do
Upgrade the Ubuntu linux-nvidia-tegra package to 6.8.0-1035.38.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
Ubuntu 26.04 LTSlinuxpkg:deb/ubuntu/linux?arch=source&distro=resoluteOther threats | Affected
| Fixed in– |
Ubuntu 26.04 LTSlinux-awspkg:deb/ubuntu/linux-aws?arch=source&distro=resoluteOther threats | Affected
| Fixed in– |
Ubuntu 26.04 LTSlinux-azurepkg:deb/ubuntu/linux-azure?arch=source&distro=resoluteOther threats | Affected
| Fixed in– |
Ubuntu 26.04 LTSlinux-azure-fdepkg:deb/ubuntu/linux-azure-fde?arch=source&distro=resoluteOther threats | Affected
| Fixed in– |
Ubuntu 26.04 LTSlinux-gcppkg:deb/ubuntu/linux-gcp?arch=source&distro=resoluteOther threats | Affected
| Fixed in– |
Ubuntu 26.04 LTSlinux-gkepkg:deb/ubuntu/linux-gke?arch=source&distro=resoluteOther 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
A patch is available and should be applied to affected Linux kernel versions. The vendor advisory from Ubuntu confirms that the issue has been fixed in updated kernel packages. Users should update their systems to the fixed kernel versions and reboot to apply the changes. Due to an ABI change, recompilation and reinstallation of third-party kernel modules may be required. No additional mitigation steps are indicated by the vendor advisory.
Description
A vulnerability in the Linux kernel's NTFS mapping-pairs parser allows a signed integer overflow when accumulating relative Logical Cluster Number (LCN) deltas. This overflow can cause an invalid runlist to be interpreted as a different set of physical clusters. The issue has been resolved by adding overflow checks before storing the next run. The vulnerability affects specific Linux kernel versions and has a high CVSS score of 9.8, indicating critical impact on confidentiality, integrity, and availability.
References
- nvd.nist.gov/vuln/detail/CVE-2026-72200 (opens in a new tab)
- git.kernel.org/stable/c/7fb64788812d137b37f6d8724e1e41c624c1e814 (opens in a new tab)
- git.kernel.org/stable/c/ec4f061f2219e0f0c6465d56d0380bf749235a53 (opens in a new tab)
- ubuntu.com/security/CVE-2026-72200 (opens in a new tab)
- cve.org/CVERecord?id=CVE-2026-72200 (opens in a new tab)
- git.kernel.org/linus/ec4f061f2219e0f0c6465d56d0380bf749235a53 (opens in a new tab)
- git.kernel.org/stable/c/7ffa8f3d30236e0ab897c30bdb01224ff1fe1c89 (opens in a new tab)
- ubuntu.com/security/notices/USN-8781-1 (opens in a new tab)