CVE-2026-81575: CWE-130 Improper handling of length parameter inconsistency in wibu-systems-ag codemeter-runtime
Description
CVE-2026-81575 is a high-severity vulnerability in Wibu-Systems-AG CodeMeter Runtime versions 8.00 and 9.00. When configured as a server, the affected versions accept requests with opcode 0x5e containing a data length and data. Due to missing bounds checking on the data length, out-of-bounds reads can occur, leading to a segmentation fault and crashing the runtime.
CVSS v3.1
Score 7.5high
Affected software
wibu-systems-ag
codemeter-runtime
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CodeMeter Runtime before versions 8.41a and 9.10, when configured as a server, improperly handles the length parameter in requests with opcode 0x5e. The lack of bounds checking on the data length field allows an attacker to cause out-of-bounds reads, resulting in a segmentation fault that crashes the service. This vulnerability is tracked as CWE-130 (Improper Handling of Length Parameter).
Potential Impact
Exploitation of this vulnerability results in a denial of service by crashing the CodeMeter Runtime process due to segmentation faults caused by out-of-bounds reads. There is no indication of confidentiality or integrity impact. No known exploits are reported in the wild.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. No official fix or temporary workaround is currently documented. Users should monitor vendor communications for updates and consider restricting access to the CodeMeter Runtime server to trusted networks until a fix is available.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- wibu
- Date Reserved
- 2026-08-27T07:01:24.780Z
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 6a9001f8acd9273b4910940b
Added to database: 08/27/2026, 09:23:04 UTC
Last enriched: 09/09/2026, 11:22:22 UTC
Last updated: 10/11/2026, 18:48:22 UTC
Views: 89
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