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VulnerabilityPublished Updated

CVE-2026-72200: Linux kernel · ntfs: detect mapping-pairs LCN accumulator overflow

Affects Linux kernelSource CVE Database V5

0

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

CVSS 3.1 base score
9.8Critical
How severe the flaw is on the 0–10 CVSS scale.
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:H

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 15 Aug 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponised: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq 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

ProductAffectedFixed in
LinuxLinuxAffected
  • ≥ 1e9ea7e04472d4e5e12e58c881eaacfb3e49b669, < ec4f061f2219e0f0c6465d56d0380bf749235a53
Fixed in
  • ec4f061f2219e0f0c6465d56d0380bf749235a53
LinuxLinuxAffected
  • ≥ 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, < 6626fb859f4c4772f2f59751d23937716e03f98f
Fixed in
  • 6626fb859f4c4772f2f59751d23937716e03f98f
LinuxLinuxAffected
  • ≥ 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, < 7ffa8f3d30236e0ab897c30bdb01224ff1fe1c89
Fixed in
  • 7ffa8f3d30236e0ab897c30bdb01224ff1fe1c89
LinuxLinuxAffected
  • ≥ 1e9ea7e04472d4e5e12e58c881eaacfb3e49b669, < 7fb64788812d137b37f6d8724e1e41c624c1e814
Fixed in
  • 7fb64788812d137b37f6d8724e1e41c624c1e814
LinuxLinuxAffected
  • =2.6.12
  • =7.1
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

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