{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2023-32737 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2023-32737 yet. Limit exposure of the affected software until one is available.","what":"CVE-2023-32737 is a high-severity unsafe deserialization vulnerability in Siemens SIMATIC STEP 7 Safety V18, published on 9 Jul 2024. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link."},"fix_prompt":"Check this codebase for CVE-2023-32737 and fix it if it is affected.\n\nWhat it is: CVE-2023-32737 is a high-severity unsafe deserialization vulnerability in Siemens SIMATIC STEP 7 Safety V18, published on 9 Jul 2024. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.\nExploitation: There is no known exploitation of CVE-2023-32737 in the wild and no public exploit code.\n\nAffected product: Siemens SIMATIC STEP 7 Safety V18. 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-2023-32737/ (Markdown: https://insights.sbomify.com/CVE-2023-32737/index.md)","id":"CVE-2023-32737","markdown":"https://insights.sbomify.com/CVE-2023-32737/index.md","name":"CVE-2023-32737","record":{"aliases":["GHSA-v9r2-vfw5-q6j9"],"analysis":{"component_type":"ics_ot","fix_type":"upgrade","impacts":["code_execution"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"Siemens STEP 7 Safety","requires_auth":"high_privilege","summary":"An attacker can execute arbitrary code in SIMATIC STEP 7 Safety by exploiting unsafe .NET BinaryFormatter deserialization of user-controllable input.","user_interaction":"required","vuln_class":"deserialization"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"siemens","cpe":[],"cvss":{"score":7,"severity":"high","source":"cna","vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","version":"4.0"},"cwes":[{"id":"CWE-502","name":"Deserialization of Untrusted Data"}],"description":"A vulnerability has been identified in SIMATIC STEP 7 Safety V18 (All versions \u003c V18 Update 2). Affected applications do not properly restrict the .NET BinaryFormatter when deserializing user-controllable input. This could allow an attacker to cause a type confusion and execute arbitrary code within the affected application.\r\n\r\nThis is the same issue that exists for .NET BinaryFormatter https://docs.microsoft.com/en-us/visualstudio/code-quality/ca2300.","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":"Deserialization in SIMATIC STEP 7 Safety V18","id":"CVE-2023-32737","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"deserialization","year":"2023"},"n_packages":0,"n_references":1,"next":{"headline":"WordPress Eonet Manual User Approve Plugin \u003c= 2.1.3 is vulnerable to Cross Site Scripting (XSS)","id":"CVE-2023-32738"},"packages":[],"prev":{"headline":"Deserialization in SIMATIC S7-PLCSIM V16","id":"CVE-2023-32736"},"products":["SIMATIC STEP 7 Safety V18"],"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":"no","exploitation":"none","technical_impact":"total"},"state":"PUBLISHED","updated":"2025-08-27","vendors":["Siemens"]},"summary":"An attacker can execute arbitrary code in SIMATIC STEP 7 Safety by exploiting unsafe .NET BinaryFormatter deserialization of user-controllable input.","url":"https://insights.sbomify.com/CVE-2023-32737/"}