{"answers":{"affected":"It affects 2 products.","exploited":"It is not confirmed as exploited in the wild, but public exploit code for CVE-2019-6829 exists.","fix":"No fix has been published for CVE-2019-6829 yet. Limit exposure of the affected software until one is available.","what":"CVE-2019-6829 is a high-severity denial of service vulnerability in Schneider Electric SE Modicon M340, published on 17 Sep 2019. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2019-6829 and fix it if it is affected.\n\nWhat it is: CVE-2019-6829 is a high-severity denial of service vulnerability in Schneider Electric SE Modicon M340, published on 17 Sep 2019. An attacker can exploit it over the internet without logging in, with no action from the victim.\nExploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2019-6829 exists.\n\nAffected product: Schneider Electric SE Modicon M340. 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-2019-6829/ (Markdown: https://insights.sbomify.com/CVE-2019-6829/index.md)","id":"CVE-2019-6829","markdown":"https://insights.sbomify.com/CVE-2019-6829/index.md","name":"CVE-2019-6829","record":{"aliases":["GHSA-25r4-295r-fvqm"],"analysis":{"component_type":"ics_ot","fix_type":"upgrade","impacts":["denial_of_service"],"network_reachable":"yes","non_default_config":false,"product_category":"PLC controller","requires_auth":"none","summary":"Attackers can cause denial of service in Schneider Modicon PLCs by writing to specific memory addresses via Modbus.","user_interaction":"not_required","vuln_class":"denial_of_service"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"schneider","cpe":[{"product":"modicon_m340_firmware","vendor":"schneider-electric"},{"product":"modicon_m580_firmware","vendor":"schneider-electric"}],"cvss":{"score":7.5,"severity":"high","source":"cisa-adp","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-755","name":"Improper Handling of Exceptional Conditions"},{"id":"CWE-248","name":"Uncaught Exception"}],"description":"A CWE-248: Uncaught Exception vulnerability exists in Modicon M580 (firmware version prior to V2.90) and Modicon M340 (firmware version prior to V3.10), which could cause a possible denial of service when writing to specific memory addresses in the controller over Modbus.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"weaponised"},"has_fix":null,"headline":"Denial of service in Modicon M340","id":"CVE-2019-6829","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","id":"CVE-2019-6830"},"packages":[],"prev":{"headline":"Denial of service in Modicon M340","id":"CVE-2019-6828"},"products":["Modicon M340","Modicon M580"],"published":"2019-09-17","related":[{"cvss_score":9.8,"headline":"Auth bypass in Modicon M580 Modicon M340 Modicon Quantum Modicon Premium","id":"CVE-2018-7842","kev_date_added":null,"published":"2019-05-22"},{"cvss_score":9.8,"headline":"Auth bypass in Modicon M580 Modicon M340 Modicon Quantum Modicon Premium","id":"CVE-2018-7846","kev_date_added":null,"published":"2019-05-22"},{"cvss_score":9.8,"headline":"Missing authorization in Modicon M580 Modicon M340 Modicon Quantum Modicon Premium","id":"CVE-2018-7847","kev_date_added":null,"published":"2019-05-22"},{"cvss_score":9.8,"headline":"Missing authorization in Modicon M580 Modicon M340 Modicon Quantum Modicon Premium","id":"CVE-2019-6808","kev_date_added":null,"published":"2019-05-22"},{"cvss_score":7.5,"headline":"Information disclosure in Modicon M580, Modicon M340, Modicon Premium , Modicon Quantum (all firmware versions)","id":"CVE-2019-6845","kev_date_added":null,"published":"2019-10-29"},{"cvss_score":7.5,"headline":"Information disclosure in Modicon M580, Modicon M340, Modicon Premium , Modicon Quantum (all firmware versions)","id":"CVE-2019-6851","kev_date_added":null,"published":"2019-10-29"},{"cvss_score":7.5,"headline":"Denial of service in Modicon M340","id":"CVE-2019-6809","kev_date_added":null,"published":"2019-09-17"}],"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":"poc","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-05-29","vendors":["Schneider Electric SE"]},"summary":"Attackers can cause denial of service in Schneider Modicon PLCs by writing to specific memory addresses via Modbus.","url":"https://insights.sbomify.com/CVE-2019-6829/"}