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CVE-2026-81576
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.
This record: live connection— last retrieved: 24 September 2026 at 05:12.
Taken directly from NVD, CISA or the vendor — sometimes in English, unchanged from the source.
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:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N
Attack vector
NETWORK
Privileges required
LOW
User interaction
NONE
Confidentiality
High
Integrity
None
Availability
None
Probability of exploitation within 30 days
0.3%
Percentile
26e
Source: FIRST.org, updated on 23 September 2026.
For CVE-2026-81573, CVE-2026-81574, CVE-2026-81575, and CVE-2026-81576: If you enabled the network server functionality at some point but no longer need it, disable it: - Open the Registry Editor and navigate to Computer\HKEY_LOCAL_MACHINE\SOFTWARE\ WIBUSYSTEMS\CodeMeter\Server\CurrentVersion\, then change the value of IsNetworkServerfrom 1 to 0. - Restart CodeMeter.
Our own interpretation and context for the source data above.
IACS Radar assessment
Our own interpretation and context for this vulnerability — not an official source.
IACS Radar priority score
Based on CVSS 7.7, EPSS 0.3%, industrial relevance 55/100.
Combines CVSS, EPSS, KEV status, industrial relevance and exposure relevance — a complement to, not a replacement for, the individual scores below and above.
Conditions for exploitation
Operational impact & energy relevance
Limited impact on availability; the risk lies mainly with confidentiality or integrity of process data.
Assessed as relevant to the energy sector based on: Vermeld in een officiële CISA ICS Advisory, wat directe relevantie voor industriële besturingssystemen bevestigt. Vendor "ABB" is a known supplier of equipment for the energy sector.
Recommended defensive measures
Industrial relevance score
Classification is provisional; manual verification by an OT security analyst is recommended.
Classified by IACS Radar-analysepijplijn (geautomatiseerd) on 24 September 2026.
IEC 62443 mapping
Automatic IACS Radar assessment based on the reported CWE weakness classification; not an official certification statement.