{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2026-1876 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2026-1876 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-1876 is a high-severity denial of service vulnerability in Mitsubishi Electric Corporation MELSEC iQ-F Series FX5-ENET/IP Ethernet Module FX5-ENET/IP, published on 3 Mar 2026. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2026-1876 and fix it if it is affected.\n\nWhat it is: CVE-2026-1876 is a high-severity denial of service vulnerability in Mitsubishi Electric Corporation MELSEC iQ-F Series FX5-ENET/IP Ethernet Module FX5-ENET/IP, published on 3 Mar 2026. 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-2026-1876 in the wild and no public exploit code.\n\nAffected product: Mitsubishi Electric Corporation MELSEC iQ-F Series FX5-ENET/IP Ethernet Module FX5-ENET/IP. 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-2026-1876/ (Markdown: https://insights.sbomify.com/CVE-2026-1876/index.md)","id":"CVE-2026-1876","markdown":"https://insights.sbomify.com/CVE-2026-1876/index.md","name":"CVE-2026-1876","record":{"aliases":["GHSA-6cj4-xhcg-7p27"],"analysis":{"component_type":"ics_ot","fix_type":"no_fix_stated","impacts":["denial_of_service"],"network_reachable":"yes","non_default_config":false,"product_category":"Mitsubishi PLC Ethernet module","requires_auth":"none","summary":"Remote attackers can cause denial of service on Mitsubishi MELSEC iQ-F Ethernet modules by flooding UDP packets, requiring a system reset to recover.","user_interaction":"not_required","vuln_class":"denial_of_service"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"Mitsubishi","cpe":[{"product":"melsec_iq-f_fx5-enet\\/ip_firmware","vendor":"mitsubishielectric"}],"cvss":{"score":8.7,"severity":"high","source":"cna","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N","version":"4.0"},"cwes":[{"id":"CWE-404","name":"Improper Resource Shutdown or Release"}],"description":"Improper Resource Shutdown or Release vulnerability in Mitsubishi Electric Corporation MELSEC iQ-F Series FX5-ENET/IP Ethernet Module FX5-ENET/IP all versions allows a remote attacker to cause a denial-of-service (DoS) condition on the products by continuously sending UDP packets to the products. A system reset of the product is required for recovery.","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 (DoS) vulnerability in Ethernet function of MELSEC iQ-F Series Ethernet module","id":"CVE-2026-1876","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"denial_of_service","year":"2026"},"n_packages":0,"n_references":3,"next":{"headline":"Auto Post Scheduler \u003c= 1.84 - Cross-Site Request Forgery to Stored Cross-Site Scripting via aps_options_page","id":"CVE-2026-1877"},"packages":[],"prev":{"headline":"Denial-of-Service (DoS) vulnerability in Ethernet function of MELSEC iQ-F Series EtherNet/IP module","id":"CVE-2026-1875"},"products":["MELSEC iQ-F Series FX5-ENET/IP Ethernet Module FX5-ENET/IP"],"published":"2026-03-03","related":[],"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":"2026-03-04","vendors":["Mitsubishi Electric Corporation"]},"summary":"Remote attackers can cause denial of service on Mitsubishi MELSEC iQ-F Ethernet modules by flooding UDP packets, requiring a system reset to recover.","url":"https://insights.sbomify.com/CVE-2026-1876/"}