CVE-2026-72200: Linux kernel · ntfs: detect mapping-pairs LCN accumulator overflow
Affects Linux kernelSource CVE Database V5
Not known to be exploited · CVSS 9.8 Critical · fixed in ec4f061f2219e0f0c6465d56d0380bf749235a53 : patch Linux kernel 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 ec4f061f2219e0f0c6465d56d0380bf749235a53, 6626fb859f4c4772f2f59751d23937716e03f98f, 7ffa8f3d30236e0ab897c30bdb01224ff1fe1c89 +1
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 Linux kernel to ec4f061f2219e0f0c6465d56d0380bf749235a53, 6626fb859f4c4772f2f59751d23937716e03f98f, 7ffa8f3d30236e0ab897c30bdb01224ff1fe1c89 or 7fb64788812d137b37f6d8724e1e41c624c1e814.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| LinuxLinux | Affected
| Fixed in
|
| LinuxLinux | Affected
| Fixed in
|
| LinuxLinux | Affected
| Fixed in
|
| LinuxLinux | Affected
| Fixed in
|
| LinuxLinux | Affected
| Fixed in– |
Description
In the Linux kernel, the following vulnerability has been resolved: ntfs: detect mapping-pairs LCN accumulator overflow The NTFS mapping-pairs parser accumulates relative LCN deltas in a signed integer. A corrupted attribute can drive that addition past the representable range. One corrupt runlist shape sets the accumulated LCN to S64_MAX and then adds a delta of 1 in the next mapping-pairs entry. Signed overflow is undefined and can turn an invalid runlist into a different set of physical clusters. Check the LCN addition for overflow before storing the next run.
References
- git.kernel.org/stable/c/6626fb859f4c4772f2f59751d23937716e03f98f (opens in a new tab)
- git.kernel.org/stable/c/7ffa8f3d30236e0ab897c30bdb01224ff1fe1c89 (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)