{"cve":"CVE-2023-3373","nvd":{"published":"2023-08-04T00:15:14.130","modified":"2026-06-17T06:13:55.203","status":"Modified","description":"Predictable Exact Value from Previous Values vulnerability in Mitsubishi Electric Corporation GOT2000 Series GT21 model versions 01.49.000 and prior and GOT SIMPLE Series GS21 model versions 01.49.000 and prior allows a remote unauthenticated attacker to hijack data connections (session hijacking) or prevent legitimate users from establishing data connections (to cause DoS condition) by guessing the listening port of the data connection on FTP server and connecting to it.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H","score":9.1},"cwes":["CWE-330","CWE-342"],"references":["https://jvn.jp/vu/JVNVU92167394/index.html","https://www.cisa.gov/news-events/ics-advisories/icsa-23-215-01","https://www.mitsubishielectric.com/en/psirt/vulnerability/pdf/2023-006_en.pdf","https://jvn.jp/vu/JVNVU92167394/index.html","https://www.cisa.gov/news-events/ics-advisories/icsa-23-215-01"],"products":["mitsubishielectric:gs21_firmware","mitsubishielectric:gt21_firmware"],"source":"nvd","synced_at":"2026-10-19T21:38:35.729974749+00:00"},"epss":{"cve":"CVE-2023-3373","score":0.01016,"percentile":0.63309,"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."]}