CVE-2026-81572

HIGHPre-NVD 7.87.8—
EchelonGraph scoreHIGH confidence

Score 7.8 from GitHub Security Advisory (severity: HIGH) published 2026-08-27. a secondary CVSS source baseline 7.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 4 sources updated this week
7.8EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 7.8Exploit: None knownExposed: 0

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

In CodeMeter Runtime from version 8.40 to (excluding) 8.41a and 9.00 to (excluding) 9.10, cmu.exe --create-io --file C: creates a predictable temporary file under C:\CM-Stick. The directory and file paths are not properly checked for NTFS reparse points, such as junctions or symbolic links, before file operations are performed. A local attacker can create a junction at the temporary file that points to an arbitrary system path. Because CodeMeter Runtime runs with System privileges, this could allow arbitrary files to be deleted with System privileges and potentially enable local privilege escalation.

CVSS v3
7.8
EG Score
7.8(high)
EG Risk
35(Track)
EG Risk 35/100SSVC: 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
Severity78% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
6%
KEV
Not listed

Published

August 27, 2026

Last Modified

August 28, 2026

Advisory Details (2)

Auto-updated Aug 27, 2026
No patch confirmed yet.
generic

Local Privilege Escalation To System In Wibu-Systems CodeMeter Application | Shelltrail | Shelltrail - Swedish Experts in Pentesting

https://shelltrail.com/research/local-privilege-escalation-to-system-in-wibu-systems-codemeter-application
generic
https://cdn.wibu.com/fileadmin/wibu_downloads/security_advisories/AdvisoryWIBU-103081.pdf

Vendor Advisories for CVE-2026-81572(1)

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

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 25× in last 7d / 25× 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. 2026-08-30 01:22 UTCEPSS rescore
  2. 2026-08-29 22:38 UTCGHSA enrichment
  3. 2026-08-29 09:40 UTCEG score recompute
  4. 2026-08-29 09:40 UTCGHSA enrichment
  5. 2026-08-28 21:42 UTCEPSS rescore
  6. 2026-08-28 20:44 UTCEG score recompute
  7. 2026-08-28 20:43 UTCGHSA enrichment
  8. 2026-08-28 19:48 UTCEG score recompute
  9. 2026-08-28 19:48 UTCGHSA enrichment
  10. 2026-08-28 08:35 UTCEG score recompute
  11. 2026-08-28 08:35 UTCGHSA enrichment
  12. 2026-08-28 07:40 UTCEG score recompute
  13. 2026-08-28 07:40 UTCGHSA enrichment
  14. 2026-08-28 05:27 UTCEG score recompute
  15. 2026-08-28 05:26 UTCGHSA enrichment
  16. 2026-08-28 04:59 UTCEG score recompute
  17. 2026-08-28 04:59 UTCGHSA enrichment
  18. 2026-08-27 17:27 UTCEG score recompute
  19. 2026-08-27 17:27 UTCGHSA enrichment
  20. 2026-08-27 17:03 UTCEG score recompute
  21. 2026-08-27 17:03 UTCGHSA enrichment
  22. 2026-08-27 14:25 UTCEPSS rescore
  23. 2026-08-27 10:27 UTCEG score recompute
  24. 2026-08-27 09:24 UTCEG score recompute
  25. 2026-08-27 09:23 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-81572?
CVE-2026-81572 is a high vulnerability published on August 27, 2026. In CodeMeter Runtime from version 8.40 to (excluding) 8.41a and 9.00 to (excluding) 9.10, cmu.exe --create-io --file C: creates a predictable temporary file under C:\CM-Stick. The directory and file paths are not properly checked for NTFS reparse points, such as junctions or symbolic links, before…
When was CVE-2026-81572 disclosed?
CVE-2026-81572 was first published in the National Vulnerability Database on August 27, 2026, with the most recent update on August 28, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-81572 actively exploited?
CVE-2026-81572 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0% probability of exploitation in the next 30 days, which ranks it in the top 94.0% of all scored CVEs.
What is the CVSS score of CVE-2026-81572?
CVE-2026-81572 has a CVSS v3 base score of 7.8 (NVD).
How do I remediate CVE-2026-81572?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-81572, 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.

Dependency Blast Radius

Explore the affected products and dependency analysis for CVE-2026-81572

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