CVE-2022-33321

Name: CVE-2022-33321
Creator: NVD / NIST
Published: 2022-11-08T20:15:10.08+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.8/10EPSS 0.90%

Last modified Jun 17, 2026

CVE-2022-33321 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. Cleartext Transmission of Sensitive Information vulnerability due to the use of Basic Authentication for HTTP connections in Mitsubishi Electric consumer electronics products (PHOTOVOLTAIC COLOR MONITOR ECO-GUIDE, HEMS adapter, Wi-Fi Interface, Air Conditioning, Induction hob, Mitsubishi Electric HEMS Energy Measurement Unit, Refrigerator, Remote control with Wi-Fi Interface, BATHROOM THERMO VENTILATOR, Rice cooker, Mitsubishi Electric HEMS control adapter, Energy Recovery Ventilator, Smart Switch, Ventilating Fan, Range hood fan, Energy Measurement Unit and Air Purifier) allows a remote unauthenticated attacker to disclose information in the products or cause a denial of service (DoS) condition as a result by sniffing credential information (username and password). The wide range of models/versions of Mitsubishi Electric consumer electronics products are affected by this vulnerability. As for the affected product models/versions, see the Mitsubishi Electric's advisory which is listed in [References] section. . EPSS estimates a 0.90% chance of exploitation in the next 30 days.

Description

Cleartext Transmission of Sensitive Information vulnerability due to the use of Basic Authentication for HTTP connections in Mitsubishi Electric consumer electronics products (PHOTOVOLTAIC COLOR MONITOR ECO-GUIDE, HEMS adapter, Wi-Fi Interface, Air Conditioning, Induction hob, Mitsubishi Electric HEMS Energy Measurement Unit, Refrigerator, Remote control with Wi-Fi Interface, BATHROOM THERMO VENTILATOR, Rice cooker, Mitsubishi Electric HEMS control adapter, Energy Recovery Ventilator, Smart Switch, Ventilating Fan, Range hood fan, Energy Measurement Unit and Air Purifier) allows a remote unauthenticated attacker to disclose information in the products or cause a denial of service (DoS) condition as a result by sniffing credential information (username and password). The wide range of models/versions of Mitsubishi Electric consumer electronics products are affected by this vulnerability. As for the affected product models/versions, see the Mitsubishi Electric's advisory which is listed in [References] section.

Metrics

CVSS 3.1

9.8/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS Probability

0.90%

55.1th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Mitsubishielectric	Mac-557if-E Firmware	All versions
Mitsubishielectric	Mac-557if-E1 Firmware	All versions
Mitsubishielectric	Pac-Wf010-E Firmware	All versions
Mitsubishielectric	Mac-566ifb-E Firmware	All versions
Mitsubishielectric	Mac-576if-E1 Firmware	All versions
Mitsubishielectric	Mac-567ifb-E Firmware	All versions
Mitsubishielectric	Mac-567ifb2-E Firmware	All versions
Mitsubishielectric	Mac-558if-E Firmware	All versions
Mitsubishielectric	Mac-558if-E1 Firmware	All versions
Mitsubishielectric	Mac-559if-E Firmware	All versions
Mitsubishielectric	Mac-559if-E1 Firmware	All versions
Mitsubishielectric	Mac-568if-E Firmware	All versions
Mitsubishielectric	Mac-568ifb-E Firmware	All versions
Mitsubishielectric	Mac-568ifb2-E Firmware	All versions
Mitsubishielectric	Mac-568ifb3-E Firmware	All versions
Mitsubishielectric	Pac-Whs01wf-E Firmware	All versions
Mitsubishielectric	S-Mac-702if-F Firmware	All versions
Mitsubishielectric	S-Mac-702if-Z Firmware	All versions
Mitsubishielectric	S-Mac-702if-B Firmware	All versions
Mitsubishielectric	S-Mac-905if Firmware	All versions
Mitsubishielectric	S-Mac-906if Firmware	All versions
Mitsubishielectric	Msz-Ap60\/71vgk-E1 Firmware	All versions
Mitsubishielectric	Msz-Ap60\/71vgk-Er1 Firmware	All versions
Mitsubishielectric	Msz-Ap60\/71vgk-Et1 Firmware	All versions
Mitsubishielectric	Msz-Ap25\/35\/42\/50vgk-E6 Firmware	All versions
Mitsubishielectric	Msz-Ln18\/25\/35\/50\/60vgw-E1 Firmware	All versions
Mitsubishielectric	Msz-Ln18\/25\/35\/50\/60vgv-E1 Firmware	All versions
Mitsubishielectric	Msz-Ln18\/25\/35\/50\/60vgb-E1 Firmware	All versions
Mitsubishielectric	Msz-Ln18\/25\/35\/50\/60vgr-E1 Firmware	All versions
Mitsubishielectric	Msz-Ln25\/35\/50\/60vgw-Er1 Firmware	All versions
Mitsubishielectric	Msz-Ln25\/35\/50\/60vgv-Er1 Firmware	All versions
Mitsubishielectric	Msz-Ln25\/35\/50\/60vgb-Er1 Firmware	All versions
Mitsubishielectric	Msz-Ln25\/35\/50\/60vgr-Er1 Firmware	All versions
Mitsubishielectric	Msz-Ln18\/25\/35\/50\/60vg2w-E1 Firmware	All versions
Mitsubishielectric	Msz-Ln18\/25\/35\/50\/60vg2v-E1 Firmware	All versions
Mitsubishielectric	Msz-Ln18\/25\/35\/50\/60vg2b-E1 Firmware	All versions
Mitsubishielectric	Msz-Ln18\/25\/35\/50\/60vg2r-E1 Firmware	All versions
Mitsubishielectric	Msz-Ln18\/25\/35\/50\/60vg2w-Er1 Firmware	All versions
Mitsubishielectric	Msz-Ln25\/35\/50\/60vg2v-Er1 Firmware	All versions
Mitsubishielectric	Msz-Ln25\/35\/50\/60vg2b-Er1 Firmware	All versions
Mitsubishielectric	Msz-Ln25\/35\/50\/60vg2r-Er1 Firmware	All versions
Mitsubishielectric	Msz-Ln18\/25\/35\/50\/60vg2w-Et1 Firmware	All versions
Mitsubishielectric	Msz-Ln18\/25\/35\/50\/60vg2v-Et1 Firmware	All versions
Mitsubishielectric	Msz-Ln18\/25\/35\/50\/60vg2b-Et1 Firmware	All versions
Mitsubishielectric	Msz-Ln18\/25\/35\/50\/60vg2r-Et1 Firmware	All versions
Mitsubishielectric	Msz-Ln18\/25\/35\/50vg2w-En1 Firmware	All versions
Mitsubishielectric	Msz-Ln18\/25\/35\/50vg2v-En1 Firmware	All versions
Mitsubishielectric	Msz-Ln18\/25\/35\/50vg2b-En1 Firmware	All versions
Mitsubishielectric	Msz-Ln18\/25\/35\/50vg2r-En1 Firmware	All versions
Mitsubishielectric	Msz-Ln25\/35\/50\/60vgv-A1 Firmware	All versions

Showing 50 of 178 affected configurations. See NVD for the full list.

References

https://jvn.jp/vu/JVNVU96767562/index.htmlThird Party Advisory
https://www.mitsubishielectric.co.jp/psirt/vulnerability/pdf/2022-010.pdfVendor Advisory
https://www.mitsubishielectric.com/en/psirt/vulnerability/pdf/2022-010_en.pdfVendor Advisory
https://jvn.jp/vu/JVNVU96767562/index.htmlThird Party Advisory
https://www.mitsubishielectric.co.jp/psirt/vulnerability/pdf/2022-010.pdfVendor Advisory
https://www.mitsubishielectric.com/en/psirt/vulnerability/pdf/2022-010_en.pdfVendor Advisory

Timeline

Published: Nov 8, 2022
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2022-33321?

How severe is CVE-2022-33321?

CVE-2022-33321 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 0.90% probability of exploitation in the next 30 days.

How do I fix CVE-2022-33321?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2022-33321?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST