{"cve":"CVE-2021-20601","nvd":{"published":"2021-11-23T15:15:07.260","modified":"2026-06-17T03:34:06.023","status":"Modified","description":"Improper input validation vulnerability in GOT2000 series GT27 model all versions, GOT2000 series GT25 model all versions, GOT2000 series GT23 model all versions, GOT2000 series GT21 model all versions, GOT SIMPLE series GS21 model all versions, and GT SoftGOT2000 all versions allows an remote unauthenticated attacker to write a value that exceeds the configured input range limit by sending a malicious packet to rewrite the device value. As a result, the system operation may be affected, such as malfunction.","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:N","score":7.5},"cwes":["CWE-20"],"references":["https://jvn.jp/vu/JVNVU98072504","https://us-cert.cisa.gov/ics/advisories/icsa-21-320-02","https://www.mitsubishielectric.co.jp/psirt/vulnerability/pdf/2021-018.pdf","https://jvn.jp/vu/JVNVU98072504","https://us-cert.cisa.gov/ics/advisories/icsa-21-320-02"],"products":["mitsubishielectric:got2000_gt2103-pmbd_firmware","mitsubishielectric:got2000_gt2103-pmbds2_firmware","mitsubishielectric:got2000_gt2103-pmbds_firmware","mitsubishielectric:got2000_gt2103-pmbls_firmware","mitsubishielectric:got2000_gt2104-rtbd_firmware","mitsubishielectric:got2000_gt2107-wtbd_firmware","mitsubishielectric:got2000_gt2308-vtba_firmware","mitsubishielectric:got2000_gt2308-vtbd_firmware","mitsubishielectric:got2000_gt2310-vtba_firmware","mitsubishielectric:got2000_gt2310-vtbd_firmware","mitsubishielectric:got2000_gt2505-vtbd_firmware","mitsubishielectric:got2000_gt2505hs-vtbd_firmware","mitsubishielectric:got2000_gt2506hs-vtbd_firmware","mitsubishielectric:got2000_gt2507-wtbd_firmware","mitsubishielectric:got2000_gt2507-wtsd_firmware","mitsubishielectric:got2000_gt2507t-wtsd_firmware","mitsubishielectric:got2000_gt2508-vtba_firmware","mitsubishielectric:got2000_gt2508-vtbd_firmware","mitsubishielectric:got2000_gt2508-vtwa_firmware","mitsubishielectric:got2000_gt2508-vtwd_firmware","mitsubishielectric:got2000_gt2510-vtba_firmware","mitsubishielectric:got2000_gt2510-vtbd_firmware","mitsubishielectric:got2000_gt2510-vtwa_firmware","mitsubishielectric:got2000_gt2510-vtwd_firmware","mitsubishielectric:got2000_gt2510-wxtbd_firmware","mitsubishielectric:got2000_gt2510-wxtsd_firmware","mitsubishielectric:got2000_gt2512-stba_firmware","mitsubishielectric:got2000_gt2512-stbd_firmware","mitsubishielectric:got2000_gt2512-wxtbd_firmware","mitsubishielectric:got2000_gt2512-wxtsd_firmware","mitsubishielectric:got2000_gt2705-vtbd_firmware","mitsubishielectric:got2000_gt2708-stba_firmware","mitsubishielectric:got2000_gt2708-stbd_firmware","mitsubishielectric:got2000_gt2708-vtba_firmware","mitsubishielectric:got2000_gt2708-vtbd_firmware","mitsubishielectric:got2000_gt2710-stba_firmware","mitsubishielectric:got2000_gt2710-stbd_firmware","mitsubishielectric:got2000_gt2710-vtba_firmware","mitsubishielectric:got2000_gt2710-vtbd_firmware","mitsubishielectric:got2000_gt2710-vtwa_firmware","mitsubishielectric:got2000_gt2710-vtwd_firmware","mitsubishielectric:got2000_gt2712-stba_firmware","mitsubishielectric:got2000_gt2712-stbd_firmware","mitsubishielectric:got2000_gt2712-stwa_firmware","mitsubishielectric:got2000_gt2712-stwd_firmware","mitsubishielectric:got2000_gt2715-xtba_firmware","mitsubishielectric:got2000_gt2715-xtbd_firmware","mitsubishielectric:got_simple_gs2107-wtbd_firmware","mitsubishielectric:got_simple_gs2110-wtbd_firmware","mitsubishielectric:gt_softgot2000"],"source":"nvd","synced_at":"2026-10-19T21:25:41.256909649+00:00"},"epss":{"cve":"CVE-2021-20601","score":0.02428,"percentile":0.84228,"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."]}