{"answers":{"affected":"It affects 49 products.","exploited":"There is no known exploitation of CVE-2021-34569 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2021-34569 yet. Limit exposure of the affected software until one is available.","what":"CVE-2021-34569 is a critical memory corruption vulnerability in WAGO 750-81xx/xxx-xxxFW, published on 9 Nov 2022. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2021-34569 and fix it if it is affected.\n\nWhat it is: CVE-2021-34569 is a critical memory corruption vulnerability in WAGO 750-81xx/xxx-xxxFW, published on 9 Nov 2022. 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-2021-34569 in the wild and no public exploit code.\n\nAffected product: WAGO 750-81xx/xxx-xxxFW. 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-2021-34569/ (Markdown: https://insights.sbomify.com/CVE-2021-34569/index.md)","id":"CVE-2021-34569","markdown":"https://insights.sbomify.com/CVE-2021-34569/index.md","name":"CVE-2021-34569","record":{"aliases":["GHSA-45x3-7h4h-cjc5"],"analysis":{"component_type":"ics_ot","fix_type":"patch","impacts":["code_execution","denial_of_service"],"network_reachable":"yes","non_default_config":false,"product_category":"WAGO I/O-Check Service","requires_auth":"none","summary":"An attacker can send crafted packets to the WAGO I/O-Check Service to crash the tool and write memory, potentially executing code.","user_interaction":"not_required","vuln_class":"memory_corruption"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"CERTVDE","cpe":[{"product":"750-8100_firmware","vendor":"wago"},{"product":"750-8101\\/025-000_firmware","vendor":"wago"},{"product":"750-8101_firmware","vendor":"wago"},{"product":"750-8102\\/025-000_firmware","vendor":"wago"},{"product":"750-8102_firmware","vendor":"wago"},{"product":"750-8202\\/000-011_firmware","vendor":"wago"},{"product":"750-8202\\/000-012_firmware","vendor":"wago"},{"product":"750-8202\\/000-022_firmware","vendor":"wago"},{"product":"750-8202\\/025-000_firmware","vendor":"wago"},{"product":"750-8202\\/025-001_firmware","vendor":"wago"},{"product":"750-8202\\/025-002_firmware","vendor":"wago"},{"product":"750-8202\\/040-000_firmware","vendor":"wago"},{"product":"750-8202\\/040-001_firmware","vendor":"wago"},{"product":"750-8202_firmware","vendor":"wago"},{"product":"752-8303\\/8000-002_firmware","vendor":"wago"},{"product":"762-4101_firmware","vendor":"wago"},{"product":"762-4102_firmware","vendor":"wago"},{"product":"762-4103_firmware","vendor":"wago"},{"product":"762-4104_firmware","vendor":"wago"},{"product":"762-4201\\/8000-001_firmware","vendor":"wago"},{"product":"762-4202\\/8000-001_firmware","vendor":"wago"},{"product":"762-4203\\/8000-001_firmware","vendor":"wago"},{"product":"762-4204\\/8000-001_firmware","vendor":"wago"},{"product":"762-4205\\/8000-001_firmware","vendor":"wago"},{"product":"762-4205\\/8000-002_firmware","vendor":"wago"},{"product":"762-4206\\/8000-001_firmware","vendor":"wago"},{"product":"762-4206\\/8000-002_firmware","vendor":"wago"},{"product":"762-4301\\/8000-002_firmware","vendor":"wago"},{"product":"762-4302\\/8000-002_firmware","vendor":"wago"},{"product":"762-4303\\/8000-002_firmware","vendor":"wago"},{"product":"762-4304\\/8000-002_firmware","vendor":"wago"},{"product":"762-4305\\/8000-002_firmware","vendor":"wago"},{"product":"762-4306\\/8000-002_firmware","vendor":"wago"},{"product":"762-5203\\/8000-001_firmware","vendor":"wago"},{"product":"762-5204\\/8000-001_firmware","vendor":"wago"},{"product":"762-5205\\/8000-001_firmware","vendor":"wago"},{"product":"762-5206\\/8000-001_firmware","vendor":"wago"},{"product":"762-5303\\/8000-002_firmware","vendor":"wago"},{"product":"762-5304\\/8000-002_firmware","vendor":"wago"},{"product":"762-5305\\/8000-002_firmware","vendor":"wago"},{"product":"762-5306\\/8000-002_firmware","vendor":"wago"},{"product":"762-6201\\/8000-001_firmware","vendor":"wago"},{"product":"762-6202\\/8000-001_firmware","vendor":"wago"},{"product":"762-6203\\/8000-001_firmware","vendor":"wago"},{"product":"762-6204\\/8000-001_firmware","vendor":"wago"},{"product":"762-6301\\/8000-002_firmware","vendor":"wago"},{"product":"762-6302\\/8000-002_firmware","vendor":"wago"},{"product":"762-6303\\/8000-002_firmware","vendor":"wago"},{"product":"762-6304\\/8000-002_firmware","vendor":"wago"}],"cvss":{"score":9.8,"severity":"critical","source":"cna","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","version":"3.1"},"cwes":[{"id":"CWE-787","name":"Out-of-bounds Write"}],"description":"In WAGO I/O-Check Service in multiple products an attacker can send a specially crafted packet containing OS commands to crash the diagnostic tool and write memory.","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":"WAGO I/O-Check Service prone to Out-of-bounds Write","id":"CVE-2021-34569","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"memory_corruption","year":"2021"},"n_packages":0,"n_references":1,"next":{"headline":"Phoenix Contact: DoS for PLCnext Control devices in versions prior to 2021.0.5 LTS","id":"CVE-2021-34570"},"packages":[],"prev":{"headline":"WAGO I/O-Check Service prone to Allocation of Resources Without Limits or Throttling","id":"CVE-2021-34568"},"products":["750-81xx/xxx-xxxFW","750-82xx/xxx-xxx","752-8303/8000-0002","762-4xxx","762-5xxx","762-6xxx"],"published":"2022-11-09","related":[{"cvss_score":9.1,"headline":"WAGO I/O-Check Service prone to Memory Overflow","id":"CVE-2021-34566","kev_date_added":null,"published":"2022-11-09"},{"cvss_score":8.2,"headline":"WAGO I/O-Check Service prone to Out-of-bounds Read","id":"CVE-2021-34567","kev_date_added":null,"published":"2022-11-09"},{"cvss_score":7.5,"headline":"WAGO I/O-Check Service prone to Allocation of Resources Without Limits or Throttling","id":"CVE-2021-34568","kev_date_added":null,"published":"2022-11-09"},{"cvss_score":7.5,"headline":"WAGO: multiple products - Loss of MAC-Address-Filtering after reboot","id":"CVE-2022-3281","kev_date_added":null,"published":"2022-10-17"},{"cvss_score":5.4,"headline":"WAGO PLCs WBM vulnerable to reflected XSS","id":"CVE-2022-22511","kev_date_added":null,"published":"2022-03-09"}],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"US public information, NVD API terms","name":"NVD"},{"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":"2025-05-01","vendors":["WAGO"]},"summary":"An attacker can send crafted packets to the WAGO I/O-Check Service to crash the tool and write memory, potentially executing code.","url":"https://insights.sbomify.com/CVE-2021-34569/"}