CVE-2026-81574 Format String Vulnerability in Logger
Attackers can inject format specifiers to crash CodeMeter and disclose sensitive memory data via local or remote vectors.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-81574?
CVE-2026-81574 is a high-severity vulnerability in wibu-systems-ag codemeter-runtime, published on 27 Aug 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official 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.
Weakness: CWE-134
Which versions are affected by CVE-2026-81574?
How do I fix CVE-2026-81574?
No fix has been published for CVE-2026-81574 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-81574 being exploited?
There is no known exploitation of CVE-2026-81574 in the wild and no public exploit code.
Sources
Also known as GHSA-7c2r-g494-h73x.