What’s Vulnerable › Vulnerabilities
CVE-2021-20595
- Severity: high (CVSS 8.2 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 1.8% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2021-07-13 · updated 2026-06-17
- Weakness: CWE-611
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.
Affected products
- Mitsubishi Ae-200A Firmware: through 7.93
- Mitsubishi Ae-200E Firmware: through 7.93
- Mitsubishi Ae-50A Firmware: through 7.93
- Mitsubishi Ae-50E Firmware: through 7.93
- Mitsubishi Ag-150A-A Firmware: through 3.20
- Mitsubishi Ag-150A-J Firmware: through 3.20
- Mitsubishi Cms-Rmd-J Firmware: through 1.30
- Mitsubishi Eb-50Gu-A Firmware: through 7.09
- Mitsubishi Eb-50Gu-J Firmware: through 7.09
- Mitsubishi Ew-50A Firmware: through 7.93
- Mitsubishi Ew-50E Firmware: through 7.93
- Mitsubishi G-50A Firmware: from 2.50 through 3.35
- Mitsubishi Gb-50A Firmware: from 2.50 through 3.35
- Mitsubishi Gb-50Ada-A Firmware: through 3.20
- Mitsubishi Gb-50Ada-J Firmware: through 3.20
- Mitsubishi Pac-Yg50Eca Firmware: through 2.20
- Mitsubishi Te-200A Firmware: through 7.93
- Mitsubishi Te-50A Firmware: through 7.93
- Mitsubishi Tw-50A Firmware: through 7.93
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
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