CVE-2026-81572Local Privilege Escalation in CodeMeter Runtime on Windows
Updated under an hour ago ()
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It affects wibu-systems-ag codemeter-runtime. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
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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
- 7.8 HIGH (v3.1, CNA)CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- Weakness (CWE)
- CWE-59
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- wibu
- NVD analysis
- Awaiting Analysis
- Record last updated
- Aug 28, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
wibu-systems-ag codemeter-runtime wibu_systems:codemeter_runtime (from the name) | from 8.40 before 8.41a; from 9.00 before 9.10 | CNA record |
References
- https://cdn.wibu.com/fileadmin/wibu_downloads/security_advisories/AdvisoryWIBU-103081.pdfvendor-advisory
- https://shelltrail.com/research/local-privilege-escalation-to-system-in-wibu-systems-codemeter-applicationtechnical-description
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.