{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2021-20608 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2021-20608 yet. Limit exposure of the affected software until one is available.","what":"CVE-2021-20608 is a high-severity denial of service vulnerability in GX Works2, published on 17 Dec 2021. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2021-20608 and fix it if it is affected.\n\nWhat it is: CVE-2021-20608 is a high-severity denial of service vulnerability in GX Works2, published on 17 Dec 2021. 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-2021-20608 in the wild and no public exploit code.\n\nAffected product: GX Works2. 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-2021-20608/ (Markdown: https://insights.sbomify.com/CVE-2021-20608/index.md)","id":"CVE-2021-20608","markdown":"https://insights.sbomify.com/CVE-2021-20608/index.md","name":"CVE-2021-20608","record":{"aliases":["GHSA-jvfx-87xv-97xc"],"analysis":{"component_type":"desktop_application","fix_type":"upgrade","impacts":["denial_of_service"],"network_reachable":"yes","non_default_config":false,"product_category":"PLC programming software","requires_auth":"none","summary":"Remote unauthenticated attackers can cause a denial of service in Mitsubishi GX Works2 by sending malicious packets to tamper with PLC program files.","user_interaction":"not_required","vuln_class":"denial_of_service"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"Mitsubishi","cpe":[{"product":"gx_works2","vendor":"mitsubishielectric"}],"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":[],"description":"Improper Handling of Length Parameter Inconsistency vulnerability in Mitsubishi Electric GX Works2 versions 1.606G and prior allows a remote unauthenticated attacker to cause a DoS condition in GX Works2 by getting GX Works2 to read a tampered program file from a Mitsubishi Electric PLC by sending malicious crafted packets to tamper with the program file.","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 GX Works2","id":"CVE-2021-20608","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"denial_of_service","year":"2021"},"n_packages":0,"n_references":3,"next":{"headline":"Denial of service in MELIPC Series MI5122-VW","id":"CVE-2021-20609"},"packages":[],"prev":{"headline":"Integer overflow in Mitsubishi Electric GX Works2; Mitsubishi Electric MELSOFT Navigator; Mitsubishi Electric EZSocket","id":"CVE-2021-20607"},"products":["GX Works2"],"published":"2021-12-17","related":[{"cvss_score":2.5,"headline":"Denial of service in GX Works2","id":"CVE-2023-5274","kev_date_added":null,"published":"2023-11-21"},{"cvss_score":2.5,"headline":"Denial of service in GX Works2","id":"CVE-2023-5275","kev_date_added":null,"published":"2023-11-21"}],"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":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":null,"exploitation":null,"technical_impact":null},"state":"PUBLISHED","updated":"2024-08-03","vendors":["n/a"]},"summary":"Remote unauthenticated attackers can cause a denial of service in Mitsubishi GX Works2 by sending malicious packets to tamper with PLC program files.","url":"https://insights.sbomify.com/CVE-2021-20608/"}