CVE-2026-72200

CRITICALPre-NVD 9.89.8—
EchelonGraph scoreHIGH confidence

Score 9.8 from GitHub Security Advisory (severity: CRITICAL) published 2026-08-15. a secondary CVSS source baseline 9.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 5 sources updated this week
9.8EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 1%CVSS: 9.8Exploit: None knownExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

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.

CVSS v3
9.8
EG Score
9.8(high)
EG Risk
49(Track)
EG Risk 49/100SSVC: Track

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity98% × 45%
Exploitation1% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
1%
EPSS %ILE
46%
KEV
Not listed

Published

August 15, 2026

Last Modified

August 19, 2026

Advisory Details (3)

Auto-updated Aug 19, 2026
No patch confirmed yet.
generic

ntfs: detect mapping-pairs LCN accumulator overflow - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/ec4f061f2219e0f0c6465d56d0380bf749235a53
generic

fs: Remove NTFS classic - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/7ffa8f3d30236e0ab897c30bdb01224ff1fe1c89
generic

ntfs: detect mapping-pairs LCN accumulator overflow - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/7fb64788812d137b37f6d8724e1e41c624c1e814

Vendor Advisories for CVE-2026-72200(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Data Freshness Timeline

(refreshed 56× in last 7d / 56× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

  1. 2026-08-20 23:23 UTCEG score recompute
  2. 2026-08-20 23:23 UTCGHSA enrichment
  3. 2026-08-20 22:56 UTCEPSS rescore
  4. 2026-08-20 19:31 UTCGHSA enrichment
  5. 2026-08-20 15:38 UTCGHSA enrichment
  6. 2026-08-20 11:45 UTCGHSA enrichment
  7. 2026-08-20 07:50 UTCGHSA enrichment
  8. 2026-08-20 03:58 UTCGHSA enrichment
  9. 2026-08-20 00:05 UTCGHSA enrichment
  10. 2026-08-19 20:12 UTCEG score recompute
  11. 2026-08-19 20:12 UTCGHSA enrichment
  12. 2026-08-19 17:04 UTCEPSS rescore
  13. 2026-08-19 16:17 UTCGHSA enrichment
  14. 2026-08-19 12:14 UTCGHSA enrichment
  15. 2026-08-19 08:21 UTCEG score recompute
  16. 2026-08-19 08:21 UTCGHSA enrichment
  17. 2026-08-19 07:48 UTCGHSA enrichment
  18. 2026-08-19 07:29 UTCEG score recompute
  19. 2026-08-19 07:29 UTCGHSA enrichment
  20. 2026-08-19 06:47 UTCGHSA enrichment
  21. 2026-08-19 02:54 UTCGHSA enrichment
  22. 2026-08-18 22:59 UTCGHSA enrichment
  23. 2026-08-18 19:07 UTCGHSA enrichment
  24. 2026-08-18 15:12 UTCEG score recompute
  25. 2026-08-18 15:12 UTCGHSA enrichment
Show 31 more
  1. 2026-08-18 13:49 UTCEPSS rescore
  2. 2026-08-18 13:49 UTCEPSS rescore
  3. 2026-08-18 11:18 UTCGHSA enrichment
  4. 2026-08-18 07:25 UTCEG score recompute
  5. 2026-08-18 07:25 UTCGHSA enrichment
  6. 2026-08-18 07:03 UTCEG score recompute
  7. 2026-08-18 07:03 UTCGHSA enrichment
  8. 2026-08-18 06:38 UTCGHSA enrichment
  9. 2026-08-18 02:46 UTCGHSA enrichment
  10. 2026-08-17 22:53 UTCGHSA enrichment
  11. 2026-08-17 19:00 UTCGHSA enrichment
  12. 2026-08-17 14:06 UTCEG score recompute
  13. 2026-08-17 14:06 UTCGHSA enrichment
  14. 2026-08-17 13:47 UTCEPSS rescore
  15. 2026-08-17 10:13 UTCEG score recompute
  16. 2026-08-17 10:13 UTCGHSA enrichment
  17. 2026-08-17 06:20 UTCEG score recompute
  18. 2026-08-17 06:20 UTCGHSA enrichment
  19. 2026-08-17 06:00 UTCEG score recompute▲ 9.80
  20. 2026-08-17 06:00 UTCGHSA enrichment
  21. 2026-08-17 05:54 UTCMITRE cvelistV5CVSS v3 → 9.8 · severity → CRITICAL
  22. 2026-08-17 05:32 UTCEG score recompute
  23. 2026-08-17 05:32 UTCGHSA enrichment
  24. 2026-08-17 05:24 UTCMITRE cvelistV5
  25. 2026-08-16 14:56 UTCEPSS rescore
  26. 2026-08-16 14:56 UTCEPSS rescore
  27. 2026-08-16 02:15 UTCEPSS rescore
  28. 2026-08-15 06:40 UTCGHSA enrichment
  29. 2026-08-15 06:23 UTCNVD update
  30. 2026-08-15 06:10 UTCEG score recompute
  31. 2026-08-15 06:02 UTCMITRE cvelistV5first tracked

Frequently asked(5)

What is CVE-2026-72200?
CVE-2026-72200 is a critical vulnerability published on August 15, 2026. 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…
When was CVE-2026-72200 disclosed?
CVE-2026-72200 was first published in the National Vulnerability Database on August 15, 2026, with the most recent update on August 19, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-72200 actively exploited?
CVE-2026-72200 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 1% probability of exploitation in the next 30 days, which ranks it in the top 53.9% of all scored CVEs.
What is the CVSS score of CVE-2026-72200?
CVE-2026-72200 has a CVSS v3 base score of 9.8 (NVD).
How do I remediate CVE-2026-72200?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-72200, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

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