CVE-2026-72210: Linux kernel · ntfs: fix off-by-one in mapping pairs decoding bounds checks
Affects Linux kernelSource GCVE Database
Not known to be exploited · CVSS 9.8 Critical.
Data as of 9 Nov 2026, 14:05 UTC
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
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 9 Nov 2026.
What to do
Affected software
| Product | Affected | Fixed in |
|---|---|---|
Ubuntu 24.04 LTSlinux-aws-6.14pkg:deb/ubuntu/linux-aws-6.14?arch=source&distro=nobleOther threats | Affected
| Fixed in– |
Ubuntu 24.04 LTSlinux-aws-6.17pkg:deb/ubuntu/linux-aws-6.17?arch=source&distro=nobleOther threats | Affected
| Fixed in– |
Ubuntu 24.04 LTSlinux-azure-6.11pkg:deb/ubuntu/linux-azure-6.11?arch=source&distro=nobleOther threats | Affected
| Fixed in– |
Ubuntu 24.04 LTSlinux-azure-6.14pkg:deb/ubuntu/linux-azure-6.14?arch=source&distro=nobleOther threats | Affected
| Fixed in– |
Ubuntu 24.04 LTSlinux-azure-6.17pkg:deb/ubuntu/linux-azure-6.17?arch=source&distro=nobleOther threats | Affected
| Fixed in– |
Ubuntu 24.04 LTSlinux-azure-fde-6.14pkg:deb/ubuntu/linux-azure-fde-6.14?arch=source&distro=nobleOther 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 fix is available for this vulnerability. Users should apply the updated Linux kernel versions that include the corrected bounds checks in ntfs_mapping_pairs_decompress(). Since this is not a cloud service, manual patching is required. No vendor advisory content contradicts this; therefore, upgrading to patched kernel versions is the recommended mitigation.
Description
CVE-2026-72210 is a critical vulnerability in the Linux kernel's NTFS driver caused by an off-by-one error in the bounds checking of mapping pairs decoding. The flaw allows a one-byte out-of-bounds read when processing NTFS attribute records due to improper use of strict greater-than checks instead of greater-than-or-equal. This can lead to potential memory corruption with high impact on confidentiality, integrity, and availability.
References
- ubuntu.com/security/CVE-2026-72210 (opens in a new tab)
- cve.org/CVERecord?id=CVE-2026-72210 (opens in a new tab)
- git.kernel.org/linus/18760a74ef7c28df93726445b5595162e62ed341 (opens in a new tab)
- git.kernel.org/stable/c/18760a74ef7c28df93726445b5595162e62ed341 (opens in a new tab)
- git.kernel.org/stable/c/bfe835e535fe0aa5767fdd8116f62e835ba50b55 (opens in a new tab)