{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2023-52891 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2023-52891 yet. Limit exposure of the affected software until one is available.","what":"CVE-2023-52891 is a medium-severity denial of service vulnerability in Siemens SIMATIC Energy Manager Basic, published on 9 Jul 2024. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2023-52891 and fix it if it is affected.\n\nWhat it is: CVE-2023-52891 is a medium-severity denial of service vulnerability in Siemens SIMATIC Energy Manager Basic, published on 9 Jul 2024. An attacker can exploit it over the internet without logging in, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2023-52891 in the wild and no public exploit code.\n\nAffected product: Siemens SIMATIC Energy Manager Basic. No package-level version data is available, so check the vendor advisory linked from the reference page.\n\nTask:\n1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.\n2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.\n3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.\n4. Run the tests and summarise what changed and why.\n5. If nothing in the project is affected, say so and change nothing.\n\nReference: https://insights.sbomify.com/CVE-2023-52891/ (Markdown: https://insights.sbomify.com/CVE-2023-52891/index.md)","id":"CVE-2023-52891","markdown":"https://insights.sbomify.com/CVE-2023-52891/index.md","name":"CVE-2023-52891","record":{"aliases":["GHSA-gccj-rgh5-5x96"],"analysis":{"component_type":"ics_ot","fix_type":"upgrade","impacts":["denial_of_service"],"network_reachable":"yes","non_default_config":false,"product_category":"Siemens OPC UA SDK","requires_auth":"none","summary":"Attackers can cause high load and memory exhaustion in Siemens OPC UA servers, blocking service availability.","user_interaction":"not_required","vuln_class":"denial_of_service"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"siemens","cpe":[],"cvss":{"score":5.3,"severity":"medium","source":"cna","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","version":"3.1"},"cwes":[{"id":"CWE-1325","name":"Improperly Controlled Sequential Memory Allocation"}],"description":"A vulnerability has been identified in SIMATIC Energy Manager Basic (All versions \u003c V7.5), SIMATIC Energy Manager PRO (All versions \u003c V7.5), SIMATIC IPC DiagBase (All versions), SIMATIC IPC DiagMonitor (All versions), SIMIT V10 (All versions), SIMIT V11 (All versions \u003c 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.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":null,"headline":"Denial of service in SIMATIC Energy Manager Basic","id":"CVE-2023-52891","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"denial_of_service","year":"2023"},"n_packages":0,"n_references":1,"next":{"headline":"Name confusion in x509 Subject Alternative Name fields","id":"CVE-2023-52892"},"packages":[],"prev":{"headline":"Use after free in n/a","id":"CVE-2023-52890"},"products":["SIMATIC Energy Manager Basic","SIMATIC Energy Manager PRO","SIMATIC IPC DiagBase","SIMATIC IPC DiagMonitor","SIMIT V10","SIMIT V11"],"published":"2024-07-09","related":[],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":"yes","exploitation":"none","technical_impact":"partial"},"state":"PUBLISHED","updated":"2025-08-27","vendors":["Siemens"]},"summary":"Attackers can cause high load and memory exhaustion in Siemens OPC UA servers, blocking service availability.","url":"https://insights.sbomify.com/CVE-2023-52891/"}