{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2021-22800 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2021-22800 yet. Limit exposure of the affected software until one is available.","what":"CVE-2021-22800 is a high-severity denial of service vulnerability in Modicon M218 Logic Controller (V5.1.0.6 and prior), published on 11 Feb 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-2021-22800 and fix it if it is affected.\n\nWhat it is: CVE-2021-22800 is a high-severity denial of service vulnerability in Modicon M218 Logic Controller (V5.1.0.6 and prior), published on 11 Feb 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-2021-22800 in the wild and no public exploit code.\n\nAffected product: Modicon M218 Logic Controller (V5.1.0.6 and prior). 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-2021-22800/ (Markdown: https://insights.sbomify.com/CVE-2021-22800/index.md)","id":"CVE-2021-22800","markdown":"https://insights.sbomify.com/CVE-2021-22800/index.md","name":"CVE-2021-22800","record":{"aliases":["GHSA-v2xg-g3g4-3w34"],"analysis":{"component_type":"ics_ot","fix_type":"upgrade","impacts":["denial_of_service"],"network_reachable":"yes","non_default_config":false,"product_category":"Modicon logic controller","requires_auth":"none","summary":"A crafted packet sent to the Modicon M218 Logic Controller can cause a Denial of Service, impacting industrial control system availability.","user_interaction":"not_required","vuln_class":"denial_of_service"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"schneider","cpe":[{"product":"modicon_m218_firmware","vendor":"schneider-electric"}],"cvss":{"score":7.5,"severity":"high","source":"nvd","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","version":"3.1"},"cwes":[{"id":"CWE-20","name":"Improper Input Validation"}],"description":"A CWE-20: Improper Input Validation vulnerability exists that could cause a Denial of Service when a crafted packet is sent to the controller over network port 1105/TCP. Affected Product: Modicon M218 Logic Controller (V5.1.0.6 and prior)","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 Modicon M218 Logic Controller (V5.1.0.6 and prior)","id":"CVE-2021-22800","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"denial_of_service","year":"2021"},"n_packages":0,"n_references":1,"next":{"headline":"Privilege escalation in ConneXium Network Manager Software (All Versions)","id":"CVE-2021-22801"},"packages":[],"prev":{"headline":"Weak cryptography in n/a","id":"CVE-2021-22799"},"products":["Modicon M218 Logic Controller (V5.1.0.6 and prior)"],"published":"2022-02-11","related":[{"cvss_score":7.5,"headline":"Memory corruption in Modicon M218 Logic Controller V5.0.0.7 and prior","id":"CVE-2020-7524","kev_date_added":null,"published":"2020-08-31"},{"cvss_score":7.5,"headline":"Memory corruption in Modicon M218 Logic Controller (Firmware version 4.3 and prior)","id":"CVE-2020-7502","kev_date_added":null,"published":"2020-06-16"}],"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":null,"exploitation":null,"technical_impact":null},"state":"PUBLISHED","updated":"2024-08-03","vendors":["n/a"]},"summary":"A crafted packet sent to the Modicon M218 Logic Controller can cause a Denial of Service, impacting industrial control system availability.","url":"https://insights.sbomify.com/CVE-2021-22800/"}