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TI-2026-56281 Aliases CVE-2026-81574GHSA-7c2r-g494-h73x

Format String Vulnerability in Logger

Priority MEDIUM 42CWE-134Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
—
Confidentiality · integrity · availability
Low · None · High
Fix status
Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA.

Summary

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00426 37th percentileScored 2026-11-07
Fix Fixed codemeter-runtime (wibu-systems-ag): 9.10, 8.41a, 6.00

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
Yes
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
wibu-systems-agcodemeter-runtime9.00 to before 9.10; 8.00 to before 8.41a; 7.009.10, 8.41a, 6.00Patch availableCNA
  • codemeter-runtime Vendorwibu-systems-ag Affected 9.00 to before 9.10; 8.00 to before 8.41a; 7.00 Fixed in 9.10, 8.41a, 6.00 Patch available CNA

Remediation

  • Fix · CNA codemeter-runtime (wibu-systems-ag) Fixed in 9.10, 8.41a, 6.00

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

  • Advisory ·

    wibu-systems-ag codemeter-runtime — cdn.wibu.com/fileadmin/wibu_downloads/security_advisories/A…

    4 records Highest priority Priority MEDIUM 2 MEDIUM, 2 LOW

    Other records, highest priority first

    • TI-2026-56280 Improper Access Control in Local-Only Configuration CommandsPriority MEDIUM 43
    • TI-2026-56283 Improper Authentication of Session HandlesPriority LOW 34
    • TI-2026-56282 Missing Sanity Checks for Buffer LengthsPriority LOW 33
    Show all 4 records → Advisory →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-81574
  2. 2026-10-03 Alias added: GHSA-7c2r-g494-h73x

References

Advisory 1

  • TI-2026-56280 Improper Access Control in Local-Only Configuration Commands CVSS 3.1HIGH 8.6
  • TI-2026-56286 Memory corruption in wibu-systems-ag wibukey CVSS 3.1HIGH 8.8
  • TI-2026-56285 An untrusted Pointer Dereference can be exploited to escalate privileges by an unprivileged user on Windows CVSS 3.1HIGH 8.8
  • TI-2026-56279 Local Privilege Escalation in CodeMeter Runtime on Windows CVSS 3.1HIGH 7.8
  • TI-2026-56283 Improper Authentication of Session Handles CVSS 3.1HIGH 7.7
  • TI-2026-56282 Missing Sanity Checks for Buffer Lengths CVSS 3.1HIGH 7.5
See all 7 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences