{"answers":{"affected":"It affects 41 products.","exploited":"There is no known exploitation of CVE-2021-22786 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2021-22786 yet. Limit exposure of the affected software until one is available.","what":"CVE-2021-22786 is a high-severity vulnerability in Schneider Electric Legacy Modicon Quantum, published on 1 Feb 2023. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2021-22786 and fix it if it is affected.\n\nWhat it is: CVE-2021-22786 is a high-severity vulnerability in Schneider Electric Legacy Modicon Quantum, published on 1 Feb 2023. 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-2021-22786 in the wild and no public exploit code.\n\nAffected product: Schneider Electric Legacy Modicon Quantum. 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-2021-22786/ (Markdown: https://insights.sbomify.com/CVE-2021-22786/index.md)","id":"CVE-2021-22786","markdown":"https://insights.sbomify.com/CVE-2021-22786/index.md","name":"CVE-2021-22786","record":{"aliases":["GHSA-c8j6-69w9-74h6"],"analysis":{"component_type":"ics_ot","fix_type":"upgrade","impacts":["data_read"],"network_reachable":"yes","non_default_config":false,"product_category":"Modicon PLC","requires_auth":"none","summary":"Attackers can expose sensitive memory information from Modicon PLCs via Modbus TCP, requiring firmware upgrades for mitigation.","user_interaction":"not_required","vuln_class":"information_disclosure"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"schneider","cpe":[{"product":"modicon_m340_bmxp341000_firmware","vendor":"schneider-electric"},{"product":"modicon_m340_bmxp342000_firmware","vendor":"schneider-electric"},{"product":"modicon_m340_bmxp3420102_firmware","vendor":"schneider-electric"},{"product":"modicon_m340_bmxp342010_firmware","vendor":"schneider-electric"},{"product":"modicon_m340_bmxp342020_firmware","vendor":"schneider-electric"},{"product":"modicon_m340_bmxp342020h_firmware","vendor":"schneider-electric"},{"product":"modicon_m340_bmxp3420302_firmware","vendor":"schneider-electric"},{"product":"modicon_m340_bmxp3420302h_firmware","vendor":"schneider-electric"},{"product":"modicon_m340_bmxp342030_firmware","vendor":"schneider-electric"},{"product":"modicon_m340_bmxp342030h_firmware","vendor":"schneider-electric"},{"product":"modicon_m580_bmeh582040_firmware","vendor":"schneider-electric"},{"product":"modicon_m580_bmeh582040c_firmware","vendor":"schneider-electric"},{"product":"modicon_m580_bmeh582040s_firmware","vendor":"schneider-electric"},{"product":"modicon_m580_bmeh584040_firmware","vendor":"schneider-electric"},{"product":"modicon_m580_bmeh584040c_firmware","vendor":"schneider-electric"},{"product":"modicon_m580_bmeh584040s_firmware","vendor":"schneider-electric"},{"product":"modicon_m580_bmeh586040_firmware","vendor":"schneider-electric"},{"product":"modicon_m580_bmeh586040c_firmware","vendor":"schneider-electric"},{"product":"modicon_m580_bmeh586040s_firmware","vendor":"schneider-electric"},{"product":"modicon_m580_bmep581020_firmware","vendor":"schneider-electric"},{"product":"modicon_m580_bmep581020h_firmware","vendor":"schneider-electric"},{"product":"modicon_m580_bmep582020_firmware","vendor":"schneider-electric"},{"product":"modicon_m580_bmep582020h_firmware","vendor":"schneider-electric"},{"product":"modicon_m580_bmep582040_firmware","vendor":"schneider-electric"},{"product":"modicon_m580_bmep582040h_firmware","vendor":"schneider-electric"},{"product":"modicon_m580_bmep582040s_firmware","vendor":"schneider-electric"},{"product":"modicon_m580_bmep583020_firmware","vendor":"schneider-electric"},{"product":"modicon_m580_bmep583040_firmware","vendor":"schneider-electric"},{"product":"modicon_m580_bmep584020_firmware","vendor":"schneider-electric"},{"product":"modicon_m580_bmep584040_firmware","vendor":"schneider-electric"},{"product":"modicon_m580_bmep584040s_firmware","vendor":"schneider-electric"},{"product":"modicon_m580_bmep585040_firmware","vendor":"schneider-electric"},{"product":"modicon_m580_bmep585040c_firmware","vendor":"schneider-electric"},{"product":"modicon_m580_bmep586040_firmware","vendor":"schneider-electric"},{"product":"modicon_m580_bmep586040c_firmware","vendor":"schneider-electric"},{"product":"modicon_mc80_bmkc8020301_firmware","vendor":"schneider-electric"},{"product":"modicon_mc80_bmkc8020310_firmware","vendor":"schneider-electric"},{"product":"modicon_mc80_bmkc8030311_firmware","vendor":"schneider-electric"},{"product":"modicon_momentum_171cbu78090_firmware","vendor":"schneider-electric"},{"product":"modicon_momentum_171cbu98090_firmware","vendor":"schneider-electric"},{"product":"modicon_momentum_171cbu98091_firmware","vendor":"schneider-electric"}],"cvss":{"score":7.5,"severity":"high","source":"cna","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","version":"3.1"},"cwes":[{"id":"CWE-200","name":"Exposure of Sensitive Information to an Unauthorized Actor"}],"description":"A CWE-200: Information Exposure vulnerability exists that could cause the exposure of sensitive information stored on the memory of the controller when communicating over the Modbus TCP protocol. Affected Products: Modicon M340 CPU (part numbers BMXP34*) (Versions prior to V3.30), Modicon M580 CPU (part numbers BMEP* and BMEH*) (Versions prior to SV3.20), Modicon MC80 (BMKC80) (Versions prior to V1.6), Modicon M580 CPU Safety (part numbers BMEP58*S and BMEH58*S) (All Versions), Modicon Momentum MDI (171CBU*) (Versions prior to V2.3), Legacy Modicon Quantum (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":"Information disclosure in Legacy Modicon Quantum","id":"CVE-2021-22786","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"information_disclosure","year":"2021"},"n_packages":0,"n_references":1,"next":{"headline":"Denial of service in Modicon M340 CPUs: BMXP34 (Versions prior to V3.40), Modicon M340 X80 Ethernet Communication Modules: BMXNOE0100 (H), BMXNOE0110 (H), BMXNOC0401, BMXNOR0200H RTU (All Versions), Modicon Premium Processors with integrated Ethernet (Copro): TSXP574634, TSXP575634, TSXP576634 (All Versions), Modicon Quantum Processors with Integrated Ethernet (Copro): 140CPU65xxxxx (All Versions), Modicon Quantum Communication Modules: 140NOE771x1, 140NOC78x00, 140NOC77101 (All Versions), Modicon Premium Communication Modules: TSXETY4103, TSXETY5103 (All Versions)","id":"CVE-2021-22787"},"packages":[],"prev":{"headline":"Information disclosure in Modicon M340 CPUs: BMXP34 (Versions prior to V3.40), Modicon M340 X80 Ethernet Communication Modules: BMXNOE0100 (H), BMXNOE0110 (H), BMXNOC0401, BMXNOR0200H RTU (All Versions), Modicon Premium Processors with integrated Ethernet (Copro): TSXP574634, TSXP575634, TSXP576634 (All Versions), Modicon Quantum Processors with Integrated Ethernet (Copro): 140CPU65xxxxx (All Versions), Modicon Quantum Communication Modules: 140NOE771x1, 140NOC78x00, 140NOC77101 (All Versions), Modicon Premium Communication Modules: TSXETY4103, TSXETY5103 (All Versions)","id":"CVE-2021-22785"},"products":["Legacy Modicon Quantum","Modicon M340 CPU (part numbers BMXP34*)","Modicon M580 CPU (part numbers BMEP* and BMEH*)","Modicon M580 CPU Safety (part numbers BMEP58*S and BMEH58*S)","Modicon MC80 (BMKC80)","Modicon Momentum CPU (171CBU*)"],"published":"2023-02-01","related":[{"cvss_score":7.5,"headline":"Denial of service in Modicon M340 CPUs: BMXP34 (All Versions)","id":"CVE-2022-22724","kev_date_added":null,"published":"2022-02-04"},{"cvss_score":7.5,"headline":"Denial of service in Modicon M580, Modicon M340, Legacy Controllers Modicon Quantum \u0026 Modicon Premium (see security notifications for affected versions)","id":"CVE-2020-7537","kev_date_added":null,"published":"2020-12-11"},{"cvss_score":7.5,"headline":"Denial of service in Modicon M580, Modicon M340, Legacy Controllers Modicon Quantum \u0026 Modicon Premium (see security notifications for affected versions)","id":"CVE-2020-7543","kev_date_added":null,"published":"2020-12-11"}],"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":"yes","exploitation":"none","technical_impact":"partial"},"state":"PUBLISHED","updated":"2025-02-05","vendors":["Schneider Electric"]},"summary":"Attackers can expose sensitive memory information from Modicon PLCs via Modbus TCP, requiring firmware upgrades for mitigation.","url":"https://insights.sbomify.com/CVE-2021-22786/"}