{"answers":{"affected":"It affects 49 products.","exploited":"There is no known exploitation of CVE-2021-22792 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2021-22792 yet. Limit exposure of the affected software until one is available.","what":"CVE-2021-22792 is a medium-severity vulnerability in Modicon M580 CPU (part numbers BMEP* and BMEH*, all versions), Modicon M340 CPU (part numbers BMXP34*, all versions), Modicon MC80 (part numbers BMKC80*, all versions), Modicon Momentum Ethernet CPU (part numbers 171CBU*, all versions), PLC Simulator for EcoStruxureª Control Expert, including all Unity Pro versions (former name of EcoStruxureª Control Expert, all versions), PLC Simulator for EcoStruxureª Process Expert including all HDCS versions (former name of EcoStruxureª Process Expert, all versions), Modicon Quantum CPU (part numbers 140CPU*, all versions), Modicon Premium CPU (part numbers TSXP5*, all versions), published on 2 Sep 2021. Any signed-in user can exploit it over the network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2021-22792 and fix it if it is affected.\n\nWhat it is: CVE-2021-22792 is a medium-severity vulnerability in Modicon M580 CPU (part numbers BMEP* and BMEH*, all versions), Modicon M340 CPU (part numbers BMXP34*, all versions), Modicon MC80 (part numbers BMKC80*, all versions), Modicon Momentum Ethernet CPU (part numbers 171CBU*, all versions), PLC Simulator for EcoStruxureª Control Expert, including all Unity Pro versions (former name of EcoStruxureª Control Expert, all versions), PLC Simulator for EcoStruxureª Process Expert including all HDCS versions (former name of EcoStruxureª Process Expert, all versions), Modicon Quantum CPU (part numbers 140CPU*, all versions), Modicon Premium CPU (part numbers TSXP5*, all versions), published on 2 Sep 2021. Any signed-in user can exploit it over the network, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2021-22792 in the wild and no public exploit code.\n\nAffected product: Modicon M580 CPU (part numbers BMEP* and BMEH*, all versions), Modicon M340 CPU (part numbers BMXP34*, all versions), Modicon MC80 (part numbers BMKC80*, all versions), Modicon Momentum Ethernet CPU (part numbers 171CBU*, all versions), PLC Simulator for EcoStruxureª Control Expert, including all Unity Pro versions (former name of EcoStruxureª Control Expert, all versions), PLC Simulator for EcoStruxureª Process Expert including all HDCS versions (former name of EcoStruxureª Process Expert, all versions), Modicon Quantum CPU (part numbers 140CPU*, all versions), Modicon Premium CPU (part numbers TSXP5*, all versions). 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-2021-22792/ (Markdown: https://insights.sbomify.com/CVE-2021-22792/index.md)","id":"CVE-2021-22792","markdown":"https://insights.sbomify.com/CVE-2021-22792/index.md","name":"CVE-2021-22792","record":{"aliases":["GHSA-f4gm-v37p-h557"],"analysis":{"component_type":"ics_ot","fix_type":"patch","impacts":["denial_of_service"],"network_reachable":"yes","non_default_config":false,"product_category":"Modicon PLC controller","requires_auth":"low_privilege","summary":"A null pointer dereference allows attackers to cause a denial of service on Modicon PLCs by uploading a specially crafted project file.","user_interaction":"not_required","vuln_class":"null_dereference"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"schneider","cpe":[{"product":"modicon_m340_bmxp341000","vendor":"schneider-electric"},{"product":"modicon_m340_bmxp342010","vendor":"schneider-electric"},{"product":"modicon_m340_bmxp342020","vendor":"schneider-electric"},{"product":"modicon_m340_bmxp342030","vendor":"schneider-electric"},{"product":"modicon_m580_bmeh582040","vendor":"schneider-electric"},{"product":"modicon_m580_bmeh582040c","vendor":"schneider-electric"},{"product":"modicon_m580_bmeh582040s","vendor":"schneider-electric"},{"product":"modicon_m580_bmeh584040","vendor":"schneider-electric"},{"product":"modicon_m580_bmeh584040c","vendor":"schneider-electric"},{"product":"modicon_m580_bmeh584040s","vendor":"schneider-electric"},{"product":"modicon_m580_bmeh586040","vendor":"schneider-electric"},{"product":"modicon_m580_bmeh586040c","vendor":"schneider-electric"},{"product":"modicon_m580_bmeh586040s","vendor":"schneider-electric"},{"product":"modicon_m580_bmep581020","vendor":"schneider-electric"},{"product":"modicon_m580_bmep581020h","vendor":"schneider-electric"},{"product":"modicon_m580_bmep582020","vendor":"schneider-electric"},{"product":"modicon_m580_bmep582020h","vendor":"schneider-electric"},{"product":"modicon_m580_bmep582040","vendor":"schneider-electric"},{"product":"modicon_m580_bmep582040h","vendor":"schneider-electric"},{"product":"modicon_m580_bmep582040s","vendor":"schneider-electric"},{"product":"modicon_m580_bmep583020","vendor":"schneider-electric"},{"product":"modicon_m580_bmep583040","vendor":"schneider-electric"},{"product":"modicon_m580_bmep584020","vendor":"schneider-electric"},{"product":"modicon_m580_bmep584040","vendor":"schneider-electric"},{"product":"modicon_m580_bmep584040s","vendor":"schneider-electric"},{"product":"modicon_m580_bmep585040","vendor":"schneider-electric"},{"product":"modicon_m580_bmep585040c","vendor":"schneider-electric"},{"product":"modicon_m580_bmep586040","vendor":"schneider-electric"},{"product":"modicon_m580_bmep586040c","vendor":"schneider-electric"},{"product":"modicon_mc80_bmkc8020301","vendor":"schneider-electric"},{"product":"modicon_mc80_bmkc8020310","vendor":"schneider-electric"},{"product":"modicon_mc80_bmkc8030311","vendor":"schneider-electric"},{"product":"modicon_momentum_171cbu78090","vendor":"schneider-electric"},{"product":"modicon_momentum_171cbu98090","vendor":"schneider-electric"},{"product":"modicon_momentum_171cbu98091","vendor":"schneider-electric"},{"product":"modicon_premium_tsxp57_1634m","vendor":"schneider-electric"},{"product":"modicon_premium_tsxp57_2634m","vendor":"schneider-electric"},{"product":"modicon_premium_tsxp57_2834m","vendor":"schneider-electric"},{"product":"modicon_premium_tsxp57_454m","vendor":"schneider-electric"},{"product":"modicon_premium_tsxp57_4634m","vendor":"schneider-electric"},{"product":"modicon_premium_tsxp57_554m","vendor":"schneider-electric"},{"product":"modicon_premium_tsxp57_5634m","vendor":"schneider-electric"},{"product":"modicon_premium_tsxp57_6634m","vendor":"schneider-electric"},{"product":"modicon_quantum_140cpu65150","vendor":"schneider-electric"},{"product":"modicon_quantum_140cpu65150c","vendor":"schneider-electric"},{"product":"modicon_quantum_140cpu65160","vendor":"schneider-electric"},{"product":"modicon_quantum_140cpu65160c","vendor":"schneider-electric"},{"product":"plc_simulator_for_ecostruxure_control_expert","vendor":"schneider-electric"},{"product":"plc_simulator_for_ecostruxure_process_expert","vendor":"schneider-electric"}],"cvss":{"score":6.5,"severity":"medium","source":"cisa-adp","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","version":"3.1"},"cwes":[{"id":"CWE-476","name":"NULL Pointer Dereference"}],"description":"A CWE-476: NULL Pointer Dereference vulnerability that could cause a Denial of Service on the Modicon PLC controller / simulator when updating the controller application with a specially crafted project file exists in Modicon M580 CPU (part numbers BMEP* and BMEH*, all versions), Modicon M340 CPU (part numbers BMXP34*, all versions), Modicon MC80 (part numbers BMKC80*, all versions), Modicon Momentum Ethernet CPU (part numbers 171CBU*, all versions), PLC Simulator for EcoStruxureª Control Expert, including all Unity Pro versions (former name of EcoStruxureª Control Expert, all versions), PLC Simulator for EcoStruxureª Process Expert including all HDCS versions (former name of EcoStruxureª Process Expert, all versions), Modicon Quantum CPU (part numbers 140CPU*, all versions), Modicon Premium CPU (part numbers TSXP5*, all versions).","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":"Null dereference in Modicon M580 CPU (part numbers BMEP* and BMEH*, all versions), Modicon M340 CPU (part numbers BMXP34*, all versions), Modicon MC80 (part numbers BMKC80*, all versions), Modicon Momentum Ethernet CPU (part numbers 171CBU*, all versions), PLC Simulator for EcoStruxureª Control Expert, including all Unity Pro versions (former name of EcoStruxureª Control Expert, all versions), PLC Simulator for EcoStruxureª Process Expert including all HDCS versions (former name of EcoStruxureª Process Expert, all versions), Modicon Quantum CPU (part numbers 140CPU*, all versions), Modicon Premium CPU (part numbers TSXP5*, all versions)","id":"CVE-2021-22792","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"null_dereference","year":"2021"},"n_packages":0,"n_references":1,"next":{"headline":"Information disclosure in AccuSine PCS+ / PFV+ (Versions prior to V1.6.7) and AccuSine PCSn (Versions prior to V2.2.4)","id":"CVE-2021-22793"},"packages":[],"prev":{"headline":"Memory corruption in Modicon M580 CPU (part numbers BMEP* and BMEH*, all versions), Modicon M340 CPU (part numbers BMXP34*, all versions), Modicon MC80 (part numbers BMKC80*, all versions), Modicon Momentum Ethernet CPU (part numbers 171CBU*, all versions), PLC Simulator for EcoStruxureª Control Expert, including all Unity Pro versions (former name of EcoStruxureª Control Expert, all versions), PLC Simulator for EcoStruxureª Process Expert including all HDCS versions (former name of EcoStruxureª Process Expert, all versions), Modicon Quantum CPU (part numbers 140CPU*, all versions), Modicon Premium CPU (part numbers TSXP5*, all versions)","id":"CVE-2021-22791"},"products":["Modicon M580 CPU (part numbers BMEP* and BMEH*, all versions), Modicon M340 CPU (part numbers BMXP34*, all versions), Modicon MC80 (part numbers BMKC80*, all versions), Modicon Momentum Ethernet CPU (part numbers 171CBU*, all versions), PLC Simulator for EcoStruxureª Control Expert, including all Unity Pro versions (former name of EcoStruxureª Control Expert, all versions), PLC Simulator for EcoStruxureª Process Expert including all HDCS versions (former name of EcoStruxureª Process Expert, all versions), Modicon Quantum CPU (part numbers 140CPU*, all versions), Modicon Premium CPU (part numbers TSXP5*, all versions)"],"published":"2021-09-02","related":[{"cvss_score":6.5,"headline":"Memory corruption in Modicon M580 CPU (part numbers BMEP* and BMEH*, all versions), Modicon M340 CPU (part numbers BMXP34*, all versions), Modicon MC80 (part numbers BMKC80*, all versions), Modicon Momentum Ethernet CPU (part numbers 171CBU*, all versions), PLC Simulator for EcoStruxureª Control Expert, including all Unity Pro versions (former name of EcoStruxureª Control Expert, all versions), PLC Simulator for EcoStruxureª Process Expert including all HDCS versions (former name of EcoStruxureª Process Expert, all versions), Modicon Quantum CPU (part numbers 140CPU*, all versions), Modicon Premium CPU (part numbers TSXP5*, all versions)","id":"CVE-2021-22789","kev_date_added":null,"published":"2021-09-02"},{"cvss_score":6.5,"headline":"Memory corruption in Modicon M580 CPU (part numbers BMEP* and BMEH*, all versions), Modicon M340 CPU (part numbers BMXP34*, all versions), Modicon MC80 (part numbers BMKC80*, all versions), Modicon Momentum Ethernet CPU (part numbers 171CBU*, all versions), PLC Simulator for EcoStruxureª Control Expert, including all Unity Pro versions (former name of EcoStruxureª Control Expert, all versions), PLC Simulator for EcoStruxureª Process Expert including all HDCS versions (former name of EcoStruxureª Process Expert, all versions), Modicon Quantum CPU (part numbers 140CPU*, all versions), Modicon Premium CPU (part numbers TSXP5*, all versions)","id":"CVE-2021-22790","kev_date_added":null,"published":"2021-09-02"},{"cvss_score":6.5,"headline":"Memory corruption in Modicon M580 CPU (part numbers BMEP* and BMEH*, all versions), Modicon M340 CPU (part numbers BMXP34*, all versions), Modicon MC80 (part numbers BMKC80*, all versions), Modicon Momentum Ethernet CPU (part numbers 171CBU*, all versions), PLC Simulator for EcoStruxureª Control Expert, including all Unity Pro versions (former name of EcoStruxureª Control Expert, all versions), PLC Simulator for EcoStruxureª Process Expert including all HDCS versions (former name of EcoStruxureª Process Expert, all versions), Modicon Quantum CPU (part numbers 140CPU*, all versions), Modicon Premium CPU (part numbers TSXP5*, all versions)","id":"CVE-2021-22791","kev_date_added":null,"published":"2021-09-02"}],"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":"partial"},"state":"PUBLISHED","updated":"2026-05-29","vendors":["n/a"]},"summary":"A null pointer dereference allows attackers to cause a denial of service on Modicon PLCs by uploading a specially crafted project file.","url":"https://insights.sbomify.com/CVE-2021-22792/"}