{"answers":{"affected":"It affects 55 products.","exploited":"There is no known exploitation of CVE-2021-20611 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2021-20611 yet. Limit exposure of the affected software until one is available.","what":"CVE-2021-20611 is a high-severity denial of service vulnerability in Mitsubishi Electric Corporation MELIPC Series MI5122-VW, published on 1 Dec 2021. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2021-20611 and fix it if it is affected.\n\nWhat it is: CVE-2021-20611 is a high-severity denial of service vulnerability in Mitsubishi Electric Corporation MELIPC Series MI5122-VW, published on 1 Dec 2021. 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-2021-20611 in the wild and no public exploit code.\n\nAffected product: Mitsubishi Electric Corporation MELIPC Series MI5122-VW. 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-2021-20611/ (Markdown: https://insights.sbomify.com/CVE-2021-20611/index.md)","id":"CVE-2021-20611","markdown":"https://insights.sbomify.com/CVE-2021-20611/index.md","name":"CVE-2021-20611","record":{"aliases":["GHSA-pmj6-jq7v-c2r6"],"analysis":{"component_type":"ics_ot","fix_type":"patch","impacts":["denial_of_service"],"network_reachable":"yes","non_default_config":false,"product_category":"Mitsubishi PLC","requires_auth":"none","summary":"Remote unauthenticated attackers can cause a denial-of-service condition on Mitsubishi PLCs by sending specially crafted 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":"melipc_mi5122-vw_firmware","vendor":"mitsubishi"},{"product":"melsec_iq-r_r00_cpu_firmware","vendor":"mitsubishi"},{"product":"melsec_iq-r_r01_cpu_firmware","vendor":"mitsubishi"},{"product":"melsec_iq-r_r02_cpu_firmware","vendor":"mitsubishi"},{"product":"melsec_iq-r_r04_cpu_firmware","vendor":"mitsubishi"},{"product":"melsec_iq-r_r04_pcpu_firmware","vendor":"mitsubishi"},{"product":"melsec_iq-r_r08_cpu_firmware","vendor":"mitsubishi"},{"product":"melsec_iq-r_r08_pcpu_firmware","vendor":"mitsubishi"},{"product":"melsec_iq-r_r08_sfcpu_firmware","vendor":"mitsubishi"},{"product":"melsec_iq-r_r120_cpu_firmware","vendor":"mitsubishi"},{"product":"melsec_iq-r_r120_pcpu_firmware","vendor":"mitsubishi"},{"product":"melsec_iq-r_r120_sfcpu_firmware","vendor":"mitsubishi"},{"product":"melsec_iq-r_r12_ccpu-v_firmware","vendor":"mitsubishi"},{"product":"melsec_iq-r_r16_cpu_firmware","vendor":"mitsubishi"},{"product":"melsec_iq-r_r16_mtcpu_firmware","vendor":"mitsubishi"},{"product":"melsec_iq-r_r16_pcpu_firmware","vendor":"mitsubishi"},{"product":"melsec_iq-r_r16_sfcpu_firmware","vendor":"mitsubishi"},{"product":"melsec_iq-r_r32_cpu_firmware","vendor":"mitsubishi"},{"product":"melsec_iq-r_r32_mtcpu_firmware","vendor":"mitsubishi"},{"product":"melsec_iq-r_r32_pcpu_firmware","vendor":"mitsubishi"},{"product":"melsec_iq-r_r32_sfcpu_firmware","vendor":"mitsubishi"},{"product":"melsec_iq-r_r64_mtcpu_firmware","vendor":"mitsubishi"},{"product":"melsec_l02cpu\\(-p\\)_firmware","vendor":"mitsubishi"},{"product":"melsec_l06cpu\\(-p\\)_firmware","vendor":"mitsubishi"},{"product":"melsec_l26cpu-\\(p\\)bt_firmware","vendor":"mitsubishi"},{"product":"melsec_l26cpu\\(-p\\)_firmware","vendor":"mitsubishi"},{"product":"melsec_mr-mq100_firmware","vendor":"mitsubishi"},{"product":"melsec_q03udecpu_firmware","vendor":"mitsubishi"},{"product":"melsec_q03udvcpu_firmware","vendor":"mitsubishi"},{"product":"melsec_q04udecpu_firmware","vendor":"mitsubishi"},{"product":"melsec_q04udpvcpu_firmware","vendor":"mitsubishi"},{"product":"melsec_q04udvcpu_firmware","vendor":"mitsubishi"},{"product":"melsec_q06udecpu_firmware","vendor":"mitsubishi"},{"product":"melsec_q06udpvcpu_firmware","vendor":"mitsubishi"},{"product":"melsec_q06udvcpu_firmware","vendor":"mitsubishi"},{"product":"melsec_q100udecpu_firmware","vendor":"mitsubishi"},{"product":"melsec_q10udecpu_firmware","vendor":"mitsubishi"},{"product":"melsec_q12dccpu-v_firmware","vendor":"mitsubishi"},{"product":"melsec_q13udecpu_firmware","vendor":"mitsubishi"},{"product":"melsec_q13udpvcpu_firmware","vendor":"mitsubishi"},{"product":"melsec_q13udvcpu_firmware","vendor":"mitsubishi"},{"product":"melsec_q170mcpu_firmware","vendor":"mitsubishi"},{"product":"melsec_q170mscpu\\(-s1\\)_firmware","vendor":"mitsubishi"},{"product":"melsec_q172dcpu-s1_firmware","vendor":"mitsubishi"},{"product":"melsec_q172dscpu_firmware","vendor":"mitsubishi"},{"product":"melsec_q173dcpu-s1_firmware","vendor":"mitsubishi"},{"product":"melsec_q173dscpu_firmware","vendor":"mitsubishi"},{"product":"melsec_q20udecpu_firmware","vendor":"mitsubishi"},{"product":"melsec_q24dhccpu-ls_firmware","vendor":"mitsubishi"},{"product":"melsec_q24dhccpu-v\\(g\\)_firmware","vendor":"mitsubishi"},{"product":"melsec_q26dhccpu-ls_firmware","vendor":"mitsubishi"},{"product":"melsec_q26udecpu_firmware","vendor":"mitsubishi"},{"product":"melsec_q26udpvcpu_firmware","vendor":"mitsubishi"},{"product":"melsec_q26udvcpu_firmware","vendor":"mitsubishi"},{"product":"melsec_q50udecpu_firmware","vendor":"mitsubishi"}],"cvss":{"score":7.5,"severity":"high","source":"cna","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-20","name":"Improper Input Validation"}],"description":"Improper Input Validation vulnerability in Mitsubishi Electric MELSEC iQ-R Series R00/01/02CPU, MELSEC iQ-R Series R04/08/16/32/120(EN)CPU, MELSEC iQ-R Series R08/16/32/120SFCPU, MELSEC iQ-R Series R08/16/32/120PCPU, MELSEC iQ-R Series R08/16/32/120PSFCPU, MELSEC iQ-R Series R16/32/64MTCPU, MELSEC iQ-R Series R12CCPU-V, MELSEC Q Series Q03UDECPU, MELSEC Q Series Q04/06/10/13/20/26/50/100UDEHCPU, MELSEC Q Series Q03/04/06/13/26UDVCPU, MELSEC Q Series Q04/06/13/26UDPVCPU, MELSEC Q Series Q12DCCPU-V, MELSEC Q Series Q24DHCCPU-V(G), MELSEC Q Series Q24/26DHCCPU-LS, MELSEC Q Series MR-MQ100, MELSEC Q Series Q172/173DCPU-S1, MELSEC Q Series Q172/173DSCPU, MELSEC Q Series Q170MCPU, MELSEC Q Series Q170MSCPU(-S1), MELSEC L Series L02/06/26CPU(-P), MELSEC L Series L26CPU-(P)BT and MELIPC Series MI5122-VW allows a remote unauthenticated attacker to cause a denial-of-service (DoS) condition by sending specially crafted packets. System reset 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 in MELIPC Series MI5122-VW","id":"CVE-2021-20611","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"denial_of_service","year":"2021"},"n_packages":0,"n_references":3,"next":{"headline":"Denial of service in MELSEC-F series FX3U-ENET; MELSEC-F series FX3U-ENET-L; MELSEC-F series FX3U-ENET-P502","id":"CVE-2021-20612"},"packages":[],"prev":{"headline":"Denial of service in MELIPC Series MI5122-VW","id":"CVE-2021-20610"},"products":["MELIPC Series MI5122-VW","MELSEC L Series L02CPU","MELSEC L Series L02CPU-P","MELSEC L Series L06CPU","MELSEC L Series L06CPU-P","MELSEC L Series L26CPU","MELSEC L Series L26CPU-BT","MELSEC L Series L26CPU-P","MELSEC L Series L26CPU-PBT","MELSEC Q Series MR-MQ100","MELSEC Q Series Q03UDECPU","MELSEC Q Series Q03UDVCPU","MELSEC Q Series Q04UDEHCPU","MELSEC Q Series Q04UDPVCPU","MELSEC Q Series Q04UDVCPU","MELSEC Q Series Q06UDEHCPU","MELSEC Q Series Q06UDPVCPU","MELSEC Q Series Q06UDVCPU","MELSEC Q Series Q100UDEHCPU","MELSEC Q Series Q10UDEHCPU","MELSEC Q Series Q12DCCPU-V","MELSEC Q Series Q13UDEHCPU","MELSEC Q Series Q13UDPVCPU","MELSEC Q Series Q13UDVCPU","MELSEC Q Series Q170MCPU","MELSEC Q Series Q170MSCPU","MELSEC Q Series Q170MSCPU-S1","MELSEC Q Series Q172DCPU-S1","MELSEC Q Series Q172DSCPU","MELSEC Q Series Q173DCPU-S1","MELSEC Q Series Q173DSCPU","MELSEC Q Series Q20UDEHCPU","MELSEC Q Series Q24DHCCPU-LS","MELSEC Q Series Q24DHCCPU-V","MELSEC Q Series Q24DHCCPU-VG","MELSEC Q Series Q26DHCCPU-LS","MELSEC Q Series Q26UDEHCPU","MELSEC Q Series Q26UDPVCPU","MELSEC Q Series Q26UDVCPU","MELSEC Q Series Q50UDEHCPU","MELSEC iQ-R Series R00CPU","MELSEC iQ-R Series R01CPU","MELSEC iQ-R Series R02CPU","MELSEC iQ-R Series R04CPU","MELSEC iQ-R Series R04ENCPU","MELSEC iQ-R Series R08CPU","MELSEC iQ-R Series R08ENCPU","MELSEC iQ-R Series R08PCPU","MELSEC iQ-R Series R08PSFCPU","MELSEC iQ-R Series R08SFCPU","MELSEC iQ-R Series R120CPU","MELSEC iQ-R Series R120ENCPU","MELSEC iQ-R Series R120PCPU","MELSEC iQ-R Series R120PSFCPU","MELSEC iQ-R Series R120SFCPU","MELSEC iQ-R Series R12CCPU-V","MELSEC iQ-R Series R16CPU","MELSEC iQ-R Series R16ENCPU","MELSEC iQ-R Series R16MTCPU","MELSEC iQ-R Series R16PCPU","MELSEC iQ-R Series R16PSFCPU","MELSEC iQ-R Series R16SFCPU","MELSEC iQ-R Series R32CPU","MELSEC iQ-R Series R32ENCPU","MELSEC iQ-R Series R32MTCPU","MELSEC iQ-R Series R32PCPU","MELSEC iQ-R Series R32PSFCPU","MELSEC iQ-R Series R32SFCPU","MELSEC iQ-R Series R64MTCPU"],"published":"2021-12-01","related":[{"cvss_score":7.5,"headline":"Denial-of-Service Vulnerability in Ethernet port of MELSEC iQ-R, iQ-L Series and MELIPC Series","id":"CVE-2022-33324","kev_date_added":null,"published":"2022-12-23"},{"cvss_score":7.5,"headline":"Denial of service in MELIPC Series MI5122-VW","id":"CVE-2021-20609","kev_date_added":null,"published":"2021-12-01"},{"cvss_score":7.5,"headline":"Denial of service in MELIPC Series MI5122-VW","id":"CVE-2021-20610","kev_date_added":null,"published":"2021-12-01"}],"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":"2024-08-03","vendors":["Mitsubishi Electric Corporation"]},"summary":"Remote unauthenticated attackers can cause a denial-of-service condition on Mitsubishi PLCs by sending specially crafted packets, requiring a system reset to recover.","url":"https://insights.sbomify.com/CVE-2021-20611/"}