CVE-2026-81572
Local Privilege Escalation in CodeMeter Runtime on Windows
CVSS Score
7.8
EPSS Score
0.0%
EPSS Percentile
0th
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.
| CWE | CWE-59 |
| Vendor | wibu-systems-ag |
| Product | codemeter-runtime |
| Published | Aug 27, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
Affected Versions
wibu-systems-ag / codemeter-runtime
8.40 < 8.41a 9.00 < 9.10
References
Credits
🔍 Andreas Vikerup of Shelltrail AB