CVE-2022-33321

What it is

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.

At a glance

Exploitability

Can be exploited over the network without logging in. High risk of data exposure, data tampering, service disruption.

Exploit odds

1.2% chance of exploitation in the next 30 days (EPSS).

Fix

A patch, advisory or fixed version is referenced. Upgrade or apply it.

Timeline

1. 2022-11-08 20:15 UTC PublishedDisclosed publicly on CVE.org and NVD
2. 2026-06-17 04:49 UTC Last updatedMost recent change to the record

Why it ranks here

• Exploited in the wild: no, CISA does not list it.
• Exploit odds: 1.2% in the next 30 days (EPSS).
• Severity: 9.8 CRITICAL (CVSS).
• Fix: a patch or advisory is linked.

Details

Published

2022-11-08 20:15 UTC

Last modified

2026-06-17 04:49 UTC

Exploit probability

1.2% · EPSS, next 30 days

Weakness

CWE-319 · Cleartext transmission

Record status

Modified

Affected

• Mitsubishielectric mac-557if-e Firmware
• Mitsubishielectric mac-557if-e1 Firmware
• Mitsubishielectric pac-wf010-e Firmware
• Mitsubishielectric mac-566ifb-e Firmware
• Mitsubishielectric mac-576if-e1 Firmware
• Mitsubishielectric mac-567ifb-e Firmware
• Mitsubishielectric mac-567ifb2-e Firmware
• Mitsubishielectric mac-558if-e Firmware

Attack profile CVSS 3.1 · 9.8

Attack vector

Network

Complexity

Low

Privileges needed

None

User interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Is it in your code?

Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.

Read https://cve-list.com/agent/cve/CVE-2022-33321.md and follow it. Check whether this project is affected by CVE-2022-33321. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.

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