CVE-2026-81574: CWE-134 Use of Externally-Controlled format string in wibu-systems-ag codemeter-runtime
In CodeMeter Runtime before versions 8.41a and 9.10, the logger does not sanitize input strings in certain cases, allowing an attacker to inject printf-style format specifiers. This can be used to reliably crash CodeMeter and disclose sensitive information such as process memory and stack canaries. The attack works locally, for example by using cmu --set-proxy to set the proxy value, and remotely when combined with CVE-2026-81573 by setting General.ProxyServer and then triggering this vulnerability.
CVE-2026-81574: CWE-134 Use of Externally-Controlled format string in wibu-systems-ag codemeter-runtime
Description
In CodeMeter Runtime before versions 8.41a and 9.10, the logger does not sanitize input strings in certain cases, allowing an attacker to inject printf-style format specifiers. This can be used to reliably crash CodeMeter and disclose sensitive information such as process memory and stack canaries. The attack works locally, for example by using cmu --set-proxy to set the proxy value, and remotely when combined with CVE-2026-81573 by setting General.ProxyServer and then triggering this vulnerability.
CVSS v3.1
Score 8.2high
Affected software
Weaknesses
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- wibu
- Date Reserved
- 2026-08-27T07:01:24.780Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a9001f8acd9273b49109409
Added to database: 08/27/2026, 09:23:04 UTC
Last updated: 08/28/2026, 01:00:05 UTC
Views: 15
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