{"cve":"CVE-2023-3346","nvd":{"published":"2023-08-03T05:15:10.603","modified":"2026-06-17T06:13:51.900","status":"Modified","description":"Buffer Copy without Checking Size of Input ('Classic Buffer Overflow') vulnerability in MITSUBSHI CNC Series allows a remote unauthenticated attacker to cause Denial of Service (DoS) condition and execute arbitrary code on the product by sending specially crafted packets. In addition, system reset is required for recovery.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","score":9.8},"cwes":["CWE-120"],"references":["https://jvn.jp/vu/JVNVU90352157/index.html","https://www.cisa.gov/news-events/ics-advisories/icsa-23-208-03","https://www.mitsubishielectric.com/en/psirt/vulnerability/pdf/2023-007_en.pdf","https://jvn.jp/vu/JVNVU90352157/index.html","https://www.cisa.gov/news-events/ics-advisories/icsa-23-208-03"],"products":["mitsubishielectric:c80_firmware","mitsubishielectric:e70_firmware","mitsubishielectric:e80_firmware","mitsubishielectric:m70v_firmware","mitsubishielectric:m720vs_15-type_firmware","mitsubishielectric:m720vs_firmware","mitsubishielectric:m720vw_firmware","mitsubishielectric:m730vs_15-type_firmware","mitsubishielectric:m730vs_firmware","mitsubishielectric:m730vw_firmware","mitsubishielectric:m750vs_15-type_firmware","mitsubishielectric:m750vs_firmware","mitsubishielectric:m750vw_firmware","mitsubishielectric:m800s_firmware","mitsubishielectric:m800vs_firmware","mitsubishielectric:m800vw_firmware","mitsubishielectric:m800w_firmware","mitsubishielectric:m80_firmware","mitsubishielectric:m80v_firmware","mitsubishielectric:m80vw_firmware","mitsubishielectric:m80w_firmware"],"source":"nvd","synced_at":"2026-10-19T21:38:35.729974749+00:00"},"epss":{"cve":"CVE-2023-3346","score":0.02095,"percentile":0.81662,"date":"2026-10-31"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}