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High 8.2Published Aug 27, 2026

CVE-2026-81574Format String Vulnerability in Logger

Updated under an hour ago ()

Does this affect you?

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.

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
8.2 HIGH (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H
Weakness (CWE)
CWE-134
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 27, 2026
First seen by InfoSec Signals
Oct 9, 2026

Affected products

Affected products
wibu-systems-ag codemeter-runtime
wibu_systems:codemeter_runtime (from the name)
from 9.00 before 9.10; from 8.00 before 8.41a; 7.00; 6.00 not affected
CNA record

References

  • vendor-advisory

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.

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