{"answers":{"affected":"It affects 4 products.","exploited":"There is no known exploitation of CVE-2019-6841 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2019-6841 yet. Limit exposure of the affected software until one is available.","what":"CVE-2019-6841 is a medium-severity denial of service vulnerability in Modicon M580, Modicon M340, and Modicon BMxCRA / 140CRA modules (see notification for version info), published on 29 Oct 2019. An attacker needs administrator access to exploit it, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2019-6841 and fix it if it is affected.\n\nWhat it is: CVE-2019-6841 is a medium-severity denial of service vulnerability in Modicon M580, Modicon M340, and Modicon BMxCRA / 140CRA modules (see notification for version info), published on 29 Oct 2019. An attacker needs administrator access to exploit it, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2019-6841 in the wild and no public exploit code.\n\nAffected product: Modicon M580, Modicon M340, and Modicon BMxCRA / 140CRA modules (see notification for version info). 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-2019-6841/ (Markdown: https://insights.sbomify.com/CVE-2019-6841/index.md)","id":"CVE-2019-6841","markdown":"https://insights.sbomify.com/CVE-2019-6841/index.md","name":"CVE-2019-6841","record":{"aliases":["GHSA-hcqh-hwqp-xm3c"],"analysis":{"component_type":"ics_ot","fix_type":"upgrade","impacts":["denial_of_service"],"network_reachable":"yes","non_default_config":false,"product_category":"Schneider Electric PLC","requires_auth":"high_privilege","summary":"An attacker can cause a Denial of Service on Modicon PLCs by uploading an empty firmware package via FTP during an upgrade.","user_interaction":"not_required","vuln_class":"denial_of_service"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"schneider","cpe":[{"product":"modicon_140cra_firmware","vendor":"schneider-electric"},{"product":"modicon_bmxcra_firmware","vendor":"schneider-electric"},{"product":"modicon_m340_firmware","vendor":"schneider-electric"},{"product":"modicon_m580_firmware","vendor":"schneider-electric"}],"cvss":{"score":4.9,"severity":"medium","source":"nvd","vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H","version":"3.1"},"cwes":[{"id":"CWE-755","name":"Improper Handling of Exceptional Conditions"}],"description":"A CWE-755: Improper Handling of Exceptional Conditions vulnerability exists in Modicon M580 with firmware (version prior to V3.10), Modicon M340 (all firmware versions), and Modicon BMxCRA and 140CRA modules (all firmware versions), which could cause a Denial of Service attack on the PLC when upgrading the firmware with no firmware image inside the package using FTP protocol.","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 M580, Modicon M340, and Modicon BMxCRA / 140CRA modules (see notification for version info)","id":"CVE-2019-6841","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"denial_of_service","year":"2019"},"n_packages":0,"n_references":1,"next":{"headline":"Denial of service in Modicon M580, Modicon M340, and Modicon BMxCRA / 140CRA modules (see notification for version info)","id":"CVE-2019-6842"},"packages":[],"prev":{"headline":"Code injection in U.motion Server","id":"CVE-2019-6840"},"products":["Modicon M580, Modicon M340, and Modicon BMxCRA / 140CRA modules (see notification for version info)"],"published":"2019-10-29","related":[{"cvss_score":6.5,"headline":"Information disclosure in Modicon M580, Modicon M340, Modicon BMxCRA and 140CRA modules (all firmware versions)","id":"CVE-2019-6846","kev_date_added":null,"published":"2019-10-29"},{"cvss_score":4.9,"headline":"Denial of service in Modicon M580, Modicon M340, and Modicon BMxCRA / 140CRA modules (see notification for version info)","id":"CVE-2019-6842","kev_date_added":null,"published":"2019-10-29"},{"cvss_score":4.9,"headline":"Denial of service in Modicon M580, Modicon M340, and Modicon BMxCRA / 140CRA modules (see notification for version info)","id":"CVE-2019-6843","kev_date_added":null,"published":"2019-10-29"},{"cvss_score":4.9,"headline":"Denial of service in Modicon M580, Modicon M340, and Modicon BMxCRA / 140CRA modules (see notification for version info)","id":"CVE-2019-6844","kev_date_added":null,"published":"2019-10-29"},{"cvss_score":4.9,"headline":"Denial of service in Modicon M580, Modicon M340, and Modicon BMxCRA / 140CRA modules (see notification for version info)","id":"CVE-2019-6847","kev_date_added":null,"published":"2019-10-29"}],"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":"2024-08-04","vendors":["n/a"]},"summary":"An attacker can cause a Denial of Service on Modicon PLCs by uploading an empty firmware package via FTP during an upgrade.","url":"https://insights.sbomify.com/CVE-2019-6841/"}