Vulnerability in Unified Automation Opc Ua C++ Demo Server
CVE-2022-37012
This vulnerability allows remote attackers to create a denial-of-service condition on affected installations of Unified Automation OPC UA C++ Demo Server 1.7.6-537. Authentication is not required to exploit this vulnerability. The specific flaw exists within the OpcUa_SecureListener_ProcessSessionCallRequest method. A crafted OPC UA message can force the server to incorrectly update a reference count. An attacker can leverage this vulnerability to create a denial-of-service condition on the system. Was ZDI-CAN-16927.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.018 (78.3th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 78th percentile — 78.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.018 · newest: 0.018 · change: 0.000
Affected products
- Unified Automation Opc Ua C++ Demo Server — versions 1.7.6-537
- Unified-Automation Opc Ua C\+\+ Demo Server — versions 1.7.6.537
Weakness classification (CWE)
References
- www.zerodayinitiative.com/advisories/ZDI-22-1030/ (VDB Entry, Third Party Advisory)
- documentation.unified-automation.com/uasdkcpp/1.7.7/CHANGELOG.txt (Release Notes)
Frequently asked questions
- What is CVE-2022-37012?
- CVE-2022-37012 is a high-severity vulnerability in Unified Automation Opc Ua C++ Demo Server, classified under CWE-911. CVSS score: 7.5/10. Published 2023-03-29.
- How severe is CVE-2022-37012?
- High severity. CVSS v3 base score is 7.5 out of 10.