{"cve":"CVE-2021-20595","nvd":{"published":"2021-07-13T11:15:09.327","modified":"2026-06-17T03:34:05.290","status":"Modified","description":"Improper Restriction of XML External Entity Reference vulnerability in Mitsubishi Electric Air Conditioning System/Centralized Controllers (G-50A Ver.3.35 and prior, GB-50A Ver.3.35 and prior, GB-24A Ver.9.11 and prior, AG-150A-A Ver.3.20 and prior, AG-150A-J Ver.3.20 and prior, GB-50ADA-A Ver.3.20 and prior, GB-50ADA-J Ver.3.20 and prior, EB-50GU-A Ver 7.09 and prior, EB-50GU-J Ver 7.09 and prior, AE-200A Ver 7.93 and prior, AE-200E Ver 7.93 and prior, AE-50A Ver 7.93 and prior, AE-50E Ver 7.93 and prior, EW-50A Ver 7.93 and prior, EW-50E Ver 7.93 and prior, TE-200A Ver 7.93 and prior, TE-50A Ver 7.93 and prior, TW-50A Ver 7.93 and prior, CMS-RMD-J Ver.1.30 and prior), Air Conditioning System/Expansion Controllers (PAC-YG50ECA Ver.2.20 and prior) and Air Conditioning System/BM adapter(BAC-HD150 Ver.2.21 and prior) allows a remote unauthenticated attacker to disclose some of data in the air conditioning system or cause a DoS condition by sending specially crafted packets.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H","score":8.2},"cwes":["CWE-611"],"references":["https://jvn.jp/vu/JVNVU93086468/index.html","https://www.mitsubishielectric.com/en/psirt/vulnerability/pdf/2021-005_en.pdf","https://jvn.jp/vu/JVNVU93086468/index.html","https://www.mitsubishielectric.com/en/psirt/vulnerability/pdf/2021-005_en.pdf"],"products":["mitsubishi:ae-200a_firmware","mitsubishi:ae-200e_firmware","mitsubishi:ae-50a_firmware","mitsubishi:ae-50e_firmware","mitsubishi:ag-150a-a_firmware","mitsubishi:ag-150a-j_firmware","mitsubishi:cms-rmd-j_firmware","mitsubishi:eb-50gu-a_firmware","mitsubishi:eb-50gu-j_firmware","mitsubishi:ew-50a_firmware","mitsubishi:ew-50e_firmware","mitsubishi:g-50a_firmware","mitsubishi:gb-50a_firmware","mitsubishi:gb-50ada-a_firmware","mitsubishi:gb-50ada-j_firmware","mitsubishi:pac-yg50eca_firmware","mitsubishi:te-200a_firmware","mitsubishi:te-50a_firmware","mitsubishi:tw-50a_firmware"],"source":"nvd","synced_at":"2026-10-19T21:21:13.713336758+00:00"},"epss":{"cve":"CVE-2021-20595","score":0.01781,"percentile":0.78262,"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."]}