CVE-2026-72192: Linux kernel · ntfs3: bound to_move in indx_insert_into_root before hdr_insert_head
Affects Linux kernelSource GCVE Database
Not known to be exploited · CVSS 9.8 Critical · fixed in 5.15.0-1117.124~20.04.1 : patch Linux kernel as a priority.
Data as of 26 Oct 2026, 14:05 UTC
- EPSS
- 0.7% chance of exploitation in 30 days – higher than 54% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
- Patch
- Available – fixed in 5.15.0-1117.124~20.04.1, 5.15.0-1123.132~20.04.1, 5.15.0-1122.131~20.04.1 +43
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 to a fixed release listed under Affected software.
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 fix adds bounds checking to prevent out-of-bounds writes and rejects malformed NTFS images by marking the filesystem inconsistent. Users should update to patched kernel versions as per the vendor advisory. No additional mitigation is required as the vulnerability is fixed in the kernel.
Description
A vulnerability in the Linux kernel's NTFS3 driver allowed a controlled out-of-bounds write past a heap allocation due to improper bounds checking during promotion of a full resident $INDEX_ROOT to $INDEX_ALLOCATION. This flaw could be triggered by unprivileged users creating files on a crafted NTFS image, leading to adjacent heap corruption with attacker-controlled data. The issue has been resolved by adding validation to reject out-of-bounds copies and marking the filesystem as inconsistent on detection.
References
- nvd.nist.gov/vuln/detail/CVE-2026-72192 (opens in a new tab)
- git.kernel.org/stable/c/0af83b8155cc848e9f5d2c36e20a70d024214649 (opens in a new tab)
- git.kernel.org/stable/c/194b00c99ba971fa7cf6acd747a36032c6de54eb (opens in a new tab)
- git.kernel.org/stable/c/53c5f3b2da3774b41534728aba295c098c9efa19 (opens in a new tab)
- git.kernel.org/stable/c/9b6926ac9c970ae0b2c2fe6289b16e9aa10b6a67 (opens in a new tab)
- git.kernel.org/stable/c/aaa1f956c0fc41089a4a534da7df91552a08a47c (opens in a new tab)
- git.kernel.org/stable/c/cb3161deebcaf8d36d3115abf452c633f2180fc1 (opens in a new tab)
- git.kernel.org/stable/c/d240f5f9d036b8180224954d9873f172b6be4dd8 (opens in a new tab)
- ubuntu.com/security/CVE-2026-72192 (opens in a new tab)
- cve.org/CVERecord?id=CVE-2026-72192 (opens in a new tab)
- git.kernel.org/linus/9b6926ac9c970ae0b2c2fe6289b16e9aa10b6a67 (opens in a new tab)
- ubuntu.com/security/notices/USN-8781-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-8816-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-8816-2 (opens in a new tab)
- ubuntu.com/security/notices/USN-8816-3 (opens in a new tab)
- ubuntu.com/security/notices/USN-8816-4 (opens in a new tab)
- ubuntu.com/security/notices/USN-8876-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-8878-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-8879-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-8877-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-8875-1 (opens in a new tab)