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8.2 High

CVE-2026-81574 In CodeMeter Runtime before versions 8.41a and 9.10, the logger does not sanitize input strings in certain cases,…

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.

Affected products and versions

Product Affected versions Fixed in
codemeter-runtime 9.00 9.00 → < 9.10 9.10
codemeter-runtime 8.00 8.00 → < 8.41a 8.41a
codemeter-runtime 7.00 No fix stated
codemeter-runtime 6.00 earliest → < 6.00 6.00

Other CVEs of codemeter-runtime

The 5 CVEs of codemeter-runtime →
CVE-2026-81576 If configured as a server, CodeMeter Runtime before versions 8.41a and 9.10 issues handles per connection and relies… 7.7 High CVE-2026-81575 If configured as a server, CodeMeter Runtime before versions 8.41a and 9.10 accepts requests with opcode 0x5e, which… 7.5 High CVE-2026-81573 If CodeMeter Runtime before 8.41a or 9.10 is configured as a server, the configuration command handler does not… 8.6 High CVE-2026-81572 In CodeMeter Runtime from version 8.40 to (excluding) 8.41a and 9.00 to (excluding) 9.10, cmu.exe --create-io --file… 7.8 High
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