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.
Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.


Workaround

No workaround given by the vendor.

History

Thu, 27 Aug 2026 09:30:00 +0000

Type Values Removed Values Added
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.
Title Improper Authentication of Session Handles
First Time appeared Wibu-systems-ag
Wibu-systems-ag codemeter-runtime
Weaknesses CWE-639
CPEs cpe:2.3:a:wibu-systems-ag:codemeter-runtime:*:*:*:*:*:*:*:*
cpe:2.3:a:wibu-systems-ag:codemeter-runtime:6.00:*:*:*:*:*:*:*
cpe:2.3:a:wibu-systems-ag:codemeter-runtime:7.00:*:*:*:*:*:*:*
Vendors & Products Wibu-systems-ag
Wibu-systems-ag codemeter-runtime
References
Metrics cvssV3_1

{'score': 7.7, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N'}


Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: wibu

Published:

Updated: 2026-08-27T08:00:26.426Z

Reserved: 2026-08-27T07:01:24.780Z

Link: CVE-2026-81576

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-08-27T10:16:40.313

Modified: 2026-08-27T10:16:40.313

Link: CVE-2026-81576

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses