CVE-2026-81576: CWE-639 Authorization bypass through User-Controlled key in wibu-systems-ag codemeter-runtime
If configured as a server, CodeMeter Runtime before versions 8.41a and 9.10 issues handles per connection and relies on a cryptographically weak SID as sole authenticator. An attacker can brute-force the SID, recover another session's handle number, and read license information belonging to another handle.
CVE-2026-81576: CWE-639 Authorization bypass through User-Controlled key in wibu-systems-ag codemeter-runtime
Description
If configured as a server, CodeMeter Runtime before versions 8.41a and 9.10 issues handles per connection and relies on a cryptographically weak SID as sole authenticator. An attacker can brute-force the SID, recover another session's handle number, and read license information belonging to another handle.
CVSS v3.1
Score 7.7high
Affected software
Weaknesses
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- wibu
- Date Reserved
- 2026-08-27T07:01:24.780Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a9001f8acd9273b4910940d
Added to database: 08/27/2026, 09:23:04 UTC
Last updated: 08/27/2026, 13:37:15 UTC
Views: 7
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