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.

Project Subscriptions

Vendors Products
Wibu-systems-ag Subscribe
Codemeter-runtime Subscribe
Wibusys Subscribe
Codemeter Runtime Kit Subscribe
Advisories

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Fixes

Solution

No solution given by the vendor.


Workaround

No workaround given by the vendor.

History

Fri, 04 Sep 2026 15:30:00 +0000

Type Values Removed Values Added
First Time appeared Wibusys
Wibusys codemeter Runtime Kit
Vendors & Products Wibusys
Wibusys codemeter Runtime Kit

Thu, 27 Aug 2026 18:00:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


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: 2026-08-27T13:13:33.594Z

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

Link: CVE-2026-81576

cve-icon Vulnrichment

Updated: 2026-08-27T13:12:29.335Z

cve-icon NVD

Status : Awaiting Analysis

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

Modified: 2026-09-01T20:56:59.203

Link: CVE-2026-81576

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-09-04T15:15:14Z

Weaknesses