SSA-726834 V1.0: Denial of Service Vulnerability in the RADIUS Client of SIPROTEC 5 Devices


The vulnerability classification has been performed by using the CVSS scoring system in version 3.1 (CVSS v3.1) ( The CVSS environmental score is specific to the customer’s environment and will impact the overall CVSS score. The environmental score should therefore be individually defined by the customer to accomplish final scoring.

An additional classification has been performed using the CWE classification, a community-developed list of common software security weaknesses. This serves as a common language and as a baseline for weakness identification, mitigation, and prevention efforts. A detailed list of CWE classes can be found at:

Vulnerability CVE-2022-38767 An issue was discovered in Wind River VxWorks 6.9 and 7, that allows a specifically crafted packet sent by a Radius server, may cause Denial of Service during the IP Radius access procedure. CVSS v3.1 Base Score 7.5 CVSS Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:P/RL:O/RC:C CWE CWE-835: Loop with Unreachable Exit Condition (‘Infinite Loop’)

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