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.
Metrics
Affected Vendors & Products
References
History
Thu, 27 Aug 2026 14:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Metrics |
ssvc
|
Thu, 27 Aug 2026 09:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| 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. | |
| Title | Format String Vulnerability in Logger | |
| First Time appeared |
Wibu-systems-ag
Wibu-systems-ag codemeter-runtime |
|
| Weaknesses | CWE-134 | |
| CPEs | cpe:2.3:a:wibu-systems-ag:codemeter-runtime:*:*:*:*:*:*:*:* cpe:2.3:a:wibu-systems-ag:codemeter-runtime:6.00:*:*:*:*:*:*:* cpe:2.3:a:wibu-systems-ag:codemeter-runtime:7.00:*:*:*:*:*:*:* |
|
| Vendors & Products |
Wibu-systems-ag
Wibu-systems-ag codemeter-runtime |
|
| References |
| |
| Metrics |
cvssV3_1
|
Status: PUBLISHED
Assigner: wibu
Published: 2026-08-27T07:11:56.916Z
Updated: 2026-08-27T13:32:50.315Z
Reserved: 2026-08-27T07:01:24.780Z
Link: CVE-2026-81574
Updated: 2026-08-27T13:32:29.796Z
Status : Received
Published: 2026-08-27T10:16:40.077
Modified: 2026-08-27T10:16:40.077
Link: CVE-2026-81574
No data.