CVE-2023-52891
MEDIUMDescription
A vulnerability has been identified in SIMATIC Energy Manager Basic (All versions < V7.5), SIMATIC Energy Manager PRO (All versions < V7.5), SIMATIC IPC DiagBase (All versions), SIMATIC IPC DiagMonitor (All versions), SIMIT V10 (All versions), SIMIT V11 (All versions < V11.1). Unified Automation .NET based OPC UA Server SDK before 3.2.2 used in Siemens products are affected by a similar vulnerability as documented in CVE-2023-27321 for the OPC Foundation UA .NET Standard implementation. A successful attack may lead to high load situation and memory exhaustion, and may block the server.
How to fix
No published remediation has been found for this vulnerability's affected products yet.
Mitigation guidance may be in the linked vendor advisories in the References section below.
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CVSS v3 Vector
Exploitability
Impact
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Exploit Intelligence
Low risk: more likely to be exploited than 38% of all known CVEs.
References
Related Vulnerabilities
Other CWE-1325 vulnerabilities, ordered by exploit likelihood. View all
| CVE | Severity | CVSS | EPSS | Exploited | Fix |
|---|---|---|---|---|---|
| CVE-2024-2511 | Medium | 5.9 | 54% | - | Fix |
| CVE-2023-3341 | High | 7.5 | 2.6% | - | Fix |
| CVE-2024-27804 | Medium | 5.5 | 1.3% | - | Fix |
| CVE-2021-43174 | High | 7.5 | 1.2% | - | Fix |
| CVE-2026-34183 | Medium | 7.5 | 1.0% | - | Fix |
| CVE-2025-2240 | High | 7.5 | 1.0% | - | - |
Common questions
How do I fix CVE-2023-52891?
No published fix for CVE-2023-52891 has been found yet. Check the linked vendor advisories for guidance as it becomes available.
Is CVE-2023-52891 being actively exploited?
Not that we know of. CVE-2023-52891 is not in the CISA Known Exploited Vulnerabilities catalog. Its EPSS score of 0.46% is the estimated probability that it will be exploited in the next 30 days. That is higher than 38% of all scored CVEs.
How severe is CVE-2023-52891?
CVE-2023-52891 has a CVSS v3 base score of 5.3, rated medium. CVSS rates the technical impact if the vulnerability is exploited, not how likely that is, so weigh it alongside the exploit-prediction score when you decide what to patch first.
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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2024-11-21.