{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2023-50821 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2023-50821 yet. Limit exposure of the affected software until one is available.","what":"CVE-2023-50821 is a medium-severity denial of service vulnerability in Siemens SIMATIC PCS 7 V9.1, published on 9 Apr 2024. It can only be exploited from the same machine or local network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2023-50821 and fix it if it is affected.\n\nWhat it is: CVE-2023-50821 is a medium-severity denial of service vulnerability in Siemens SIMATIC PCS 7 V9.1, published on 9 Apr 2024. It can only be exploited from the same machine or local network, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2023-50821 in the wild and no public exploit code.\n\nAffected product: Siemens SIMATIC PCS 7 V9.1. 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-2023-50821/ (Markdown: https://insights.sbomify.com/CVE-2023-50821/index.md)","id":"CVE-2023-50821","markdown":"https://insights.sbomify.com/CVE-2023-50821/index.md","name":"CVE-2023-50821","record":{"aliases":["GHSA-m32q-g43c-p863"],"analysis":{"component_type":"ics_ot","fix_type":"upgrade","impacts":["denial_of_service"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"Siemens SCADA software","requires_auth":"none","summary":"Attackers can cause persistent denial of service in Siemens SIMATIC PCS 7 and WinCC products by exploiting improper input validation in the login dialog.","user_interaction":"not_required","vuln_class":"denial_of_service"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"siemens","cpe":[],"cvss":{"score":6.9,"severity":"medium","source":"cna","vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N","version":"4.0"},"cwes":[{"id":"CWE-120","name":"Buffer Copy without Checking Size of Input"}],"description":"A vulnerability has been identified in SIMATIC PCS 7 V9.1 (All versions \u003c V9.1 SP2 UC04), SIMATIC WinCC Runtime Professional V17 (All versions \u003c V17 Update 8), SIMATIC WinCC Runtime Professional V18 (All versions \u003c V18 Update 4), SIMATIC WinCC Runtime Professional V19 (All versions \u003c V19 Update 1), SIMATIC WinCC V7.5 (All versions \u003c V7.5 SP2 Update 16), SIMATIC WinCC V8.0 (All versions \u003c V8.0 Update 5). The affected products do not properly validate the input provided in the login dialog box. An attacker could leverage this vulnerability to cause a persistent denial of service condition.","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 PCS 7 V9.1","id":"CVE-2023-50821","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":"WordPress Currency Converter Widget Plugin \u003c= 3.0.2 is vulnerable to Cross Site Scripting (XSS)","id":"CVE-2023-50822"},"packages":[],"prev":{"headline":"Missing authorization in n/a","id":"CVE-2023-50811"},"products":["SIMATIC PCS 7 V9.1","SIMATIC WinCC Runtime Professional V17","SIMATIC WinCC Runtime Professional V18","SIMATIC WinCC Runtime Professional V19","SIMATIC WinCC V7.5","SIMATIC WinCC V8.0"],"published":"2024-04-09","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":"partial"},"state":"PUBLISHED","updated":"2025-02-26","vendors":["Siemens"]},"summary":"Attackers can cause persistent denial of service in Siemens SIMATIC PCS 7 and WinCC products by exploiting improper input validation in the login dialog.","url":"https://insights.sbomify.com/CVE-2023-50821/"}