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Full vulnerability report · 2022
CVE-2022-33321High confidence

Mitsubishi Electric Corporation PHOTOVOLTAIC COLOR MONITOR ECO-GUIDE PV-DR006L-SET-M — Cleartext Transmission of Sensitive Information

Mitsubishi Electric Corporation · PHOTOVOLTAIC COLOR MONITOR ECO-GUIDE PV-DR006L-SET-M

9.8CriticalCVSS 3.1
Recommended action
Within 72 hours

Critical technical impact with a remotely reachable, unauthenticated path; no CISA KEV confirmation is currently recorded.

Fix not verified
R
Operational reassessment

Published severity in operational context

Open reassessment dashboard →
Published severityCriticalOperational priority:Critical, unchanged from published severity.unchanged

Evidence used

  • No CISA KEV confirmation is currently recorded.
  • The selected CVSS metric records a network-reachable, unauthenticated path with no user interaction.
  • EPSS is 0.97% for the current model date.

Compensating controls

  • Restrict the affected network interface to trusted sources where business-safe.
  • Monitor vendor guidance and exploitation sources for a material change.

Verification

  1. Confirm that the asset runs Mitsubishi Electric Corporation PHOTOVOLTAIC COLOR MONITOR ECO-GUIDE PV-DR006L-SET-M and falls inside the recorded affected range.
  2. Recheck the vendor advisory before scheduling a change because no verified fixed version is currently retained.
  3. Validate exposure, authentication requirements and compensating controls in the actual environment.
  4. Reopen this reassessment when CVSS, KEV, EPSS, exploit evidence or remediation changes.
Mitigation target: Within 3 daysRemediation target: Within 90 days

This automated reassessment organises public evidence. It does not know asset exposure, business impact or control effectiveness and does not replace CVSS or a human risk decision.

Optional official sources

National CERT insights
?CERT means Computer Emergency Response Team; CSIRT is the closely related term Computer Security Incident Response Team.

Choose official national sources for this report. Each advisory shows its original language. Your selection is remembered on this device and included in shared links.

Official European source

ENISA European Vulnerability Database

Official EUVD identifiers, advisory evidence and known-exploited context. Missing fields are not treated as evidence of low risk.

1 current
ENISA EUVD identifier

EUVD-2022-36364

No EUVD known-exploited evidence

ENISA has published the identifier mapping but no EUVD description has been stored yet.

EUVD state
Present in the current official mapping
Known exploitation
Not present in the current ENISA EUVD known-exploited dataset. This is not proof of no exploitation.
ENISA score
Not supplied in the stored EUVD record
Advisory evidence
No linked advisory details stored yet
Recommended actionWithin 72 hours

Critical technical impact with a remotely reachable, unauthenticated path; no CISA KEV confirmation is currently recorded.

Fix not verified
01

What, why and how

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.

What

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.

Why

The product transmits sensitive or security-critical data in cleartext in a communication channel that can be sniffed by unauthorized actors.

How

An attacker operating through a network path may attempt exploitation without authentication or user interaction. If successful, the issue may obtain information outside the intended access boundary.

What

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.

Why

The product transmits sensitive or security-critical data in cleartext in a communication channel that can be sniffed by unauthorized actors.

How

An attacker operating through a network path may attempt exploitation without authentication or user interaction. If successful, the issue may obtain information outside the intended access boundary.

02

Exploit reality and attack path

CVSS severity, EPSS forecast probability, public exploit material and CISA-confirmed exploitation are separate signals.

Observed exploitation
?Confirmed exploitation and public exploit material are separate signals. Attacks can occur without public proof-of-concept or exploit code.
No confirmed evidence

No CISA KEV match was present at the last successful refresh. This means no confirmation from that source, not proof of no exploitation.

Public PoC / exploit material
?Confirmed exploitation and public exploit material are separate signals. Attacks can occur without public proof-of-concept or exploit code.
None recorded

No exploit-tagged reference or CISA SSVC proof-of-concept state is currently recorded. Research may still exist outside the structured feeds.

Likely attack path
a network path → Cleartext Transmission of Sensitive Information → obtain information outside the intended access boundary
Attack surface
Network
Privileges required
None: unauthenticated exploitation is possible
User interaction
None
Attack complexity
Low: no specialised conditions are recorded
Security boundary
Unchanged: impact remains within the vulnerable component's security authority
Weakness
?CWE means Common Weakness Enumeration: a standard category for the underlying weakness.
CWE-319 ↗

CWE-319: Cleartext Transmission of Sensitive Information. The product transmits sensitive or security-critical data in cleartext in a communication channel that can be sniffed by unauthorized actors.

CVSS vector
?CVSS means Common Vulnerability Scoring System. The vector records the metric values used to calculate technical severity.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Common Vulnerability Scoring System 3.1: the compact vector below is decoded into plain language.

AVNetworkAttack vector: The vulnerable component can be reached over a network.ACLowAttack complexity: No specialised conditions are required beyond attacker-controlled input.PRNonePrivileges required: The attacker does not need an account or existing privileges.UINoneUser interaction: No action by another user is required.SUnchangedScope: The security impact remains within the vulnerable component's authority.CHighConfidentiality impact: A successful attack can cause a major loss.IHighIntegrity impact: A successful attack can cause a major loss.AHighAvailability impact: A successful attack can cause a major loss.
Post-exploitation / living off the land
Stolen credentials, tokens and legitimate administration functions may provide continued access without deploying a large custom toolset.
NetworkUnauthenticatedDenial of serviceCWE-319
A

Official authority intelligence

Only matched European and national findings are included. Language selectors and unavailable sources are omitted.

Cyber Security Agency of Singapore · English · CSA-SB-20221109Security Bulletin 09 Nov 2022

The Cyber Security Agency of Singapore included this CVE in its official Security Bulletin 09 Nov 2022, published on 9 November 2022. Open the linked bulletin for the product, severity and reference information published in that issue.

Official advisory ↗
JVN iPedia · Japanese · JVNDB-2022-020783複数の三菱電機製品における重要な情報の平文での送信に関する脆弱性

mac-557if-e ファームウェア、mac-557if-e1 ファームウェア、pac-wf010-e ファームウェア等複数の三菱電機製品には、重要な情報の平文での送信に関する脆弱性が存在します。

Official advisory ↗
03

Patch and workaround

Operational remediation based on structured source evidence.

Status
?Patch availability is based on structured fixed-version fields and authoritative update references. If no fix is verified, check the vendor advisory before making a change.
Fix not verified
Affected
  • PHOTOVOLTAIC COLOR MONITOR ECO-GUIDE PV-DR006L-SET-M: all versions
  • PHOTOVOLTAIC COLOR MONITOR ECO-GUIDE PV-DR006L-IFU-GW-M: all versions
  • PHOTOVOLTAIC COLOR MONITOR ECO-GUIDE PV-DR006L-IFU-MRC-M: all versions
  • PHOTOVOLTAIC COLOR MONITOR ECO-GUIDE PV-DR006L-SET-Y: all versions
  • PHOTOVOLTAIC COLOR MONITOR ECO-GUIDE PV-DR006L-IFU-GW-Y: all versions
  • PHOTOVOLTAIC COLOR MONITOR ECO-GUIDE PV-DR006L-IFU-MRC-Y: all versions
  • HEMS adapter GT-HEM1: all versions
  • HEMS adapter GT-HEM2: all versions
  • HEMS adapter GT-HEM3: all versions
  • HEMS adapter GT-HEM3-M: all versions
  • HEMS adapter P-01HMA: all versions
  • HEMS adapter P-HM02WA: all versions
  • HEMS adapter P-HM03WA: all versions
  • HEMS adapter VEZ-HM01WA : all versions
  • HEMS adapter HM-01A-CS: all versions
  • HEMS adapter HM-01A-EX: all versions
  • HEMS adapter HM-01A-VEH: all versions
  • HEMS adapter HM-02A-CS: all versions
  • HEMS adapter HM-02A-REF: all versions
  • HEMS adapter HM-02A-VEH: all versions
  • HEMS adapter HM-WF001: all versions
  • HEMS adapter HM-W002-AC: all versions
  • HEMS adapter HM-W002-ACB: all versions
  • Wi-Fi Interface MAC-884IF: all versions
  • Wi-Fi Interface MAC-888IF: all versions
  • Air Conditioning MSZ-EM22/25/28/36/40/56/63/71/80E2(S): all versions
  • Air Conditioning MSZ-EM22/25/28/36/40/56/63/71/80/90E3(S): all versions
  • Induction hob CS-PT31HNWSR-H: all versions
  • Induction hob G32MS-H: all versions
  • Induction hob G32M-H: all versions
  • Mitsubishi Electric HEMS Energy Measurement Unit HM-EM02: all versions
  • Mitsubishi Electric HEMS Energy Measurement Unit HM-EM03-W: all versions
  • Wi-Fi Interface MAC-895IF: all versions
  • Air Conditioning MSZ-FD40/56/63/71/8022S: versions 30.00 to 35.00
  • Air Conditioning MSZ-HXV25/28/40/56/63/71/8022S: versions 30.00 to 35.00
  • Air Conditioning MSZ-VXV40/56/63/71/8022S: versions 30.00 to 35.00
  • Air Conditioning MSZ-ZD25/28/40/56/63/71/8022(S): versions 30.00 to 35.00
  • Air Conditioning MSZ-FZ40/56/63/71/80/9021S: versions 30.00 to 35.00
  • Air Conditioning MSZ-ZW22/25/28/36/40/56/63/71/80/9021(S): versions 30.00 to 35.00
  • Air Conditioning MSZ-FZV40/56/63/71/80/9021S: versions 30.00 to 35.00
  • Air Conditioning MSZ-ZXV22/25/28/36/40/56/63/71/80/9021(S): versions 30.00 to 35.00
  • Air Conditioning MSZ-EM22/25/28/36/40/56/63/71/80/9021E9(S): versions 30.00 to 35.00
  • Air Conditioning MSZ-FZ40/56/63/71/80/9020S: versions 30.00 to 35.00
  • Air Conditioning MSZ-ZW22/25/28/36/40/56/63/71/80/9020(S): versions 30.00 to 35.00
  • Air Conditioning MSZ-FZV40/56/63/71/80/9020S: versions 30.00 to 35.00
  • Air Conditioning MSZ-ZXV22/25/28/36/40/56/63/71/80/9020(S): versions 30.00 to 35.00
  • Air Conditioning MSZ-EM22/25/28/36/40/56/63/71/80/9020E8(S): versions 30.00 to 35.00
  • Wi-Fi Interface MAC-900IF: versions 30.00 to 35.00
  • Wi-Fi Interface PAC-SK43ML: versions 30.00 to 35.00
  • Refrigerator MR-MXD50/57G: versions 00.68 and prior
  • Refrigerator MR-WXD52/60/70G: versions 00.68 and prior
  • Refrigerator MR-WZ55/61H: versions 00.68 and prior
  • Refrigerator MR-MZ54/60H: versions 00.68 and prior
  • HEMS adapter GT-HEM4: versions 00.83 and prior
  • Wi-Fi Interface GT-RA1: versions 00.83 and prior
  • Wi-Fi Interface GT-RA2: versions 00.83 and prior
  • Wi-Fi Interface GT-HR1: versions 00.83 and prior
  • Remote control with Wi-Fi Interface RMCB-H6SE-T: versions 00.83 and prior
  • Remote control with Wi-Fi Interface RMCB-F6SE-T: versions 00.83 and prior
  • Remote control with Wi-Fi Interface RMCB-D6SE-T: versions 00.83 and prior
  • BATHROOM THERMO VENTILATOR V-241BZ-RC: versions 00.65 and prior
  • BATHROOM THERMO VENTILATOR V-241BZ5-RC: versions 00.65 and prior
  • BATHROOM THERMO VENTILATOR WD-240DK-RC: versions 00.65 and prior
  • BATHROOM THERMO VENTILATOR WD-240DK2-RC: versions 00.65 and prior
  • Rice cooker NJ-AWBX10: versions 00.75 and prior
  • Mitsubishi Electric HEMS control adapter P-HM04WA: versions 00.67 and prior
  • Wi-Fi Interface P-WA01: versions 00.67 and prior
  • Energy Recovery Ventilator VL-200ZMHSV3-RC: versions 00.71 and prior
  • Smart Switch P-1600SWRC: versions 00.90 and prior
  • 208 additional product groups retained in the authoritative source
Fixed
No fixed version is explicitly recorded in the structured CVE data.
Action
No verified patch reference is present in the current structured sources. Check the vendor advisory before making a change.
Workaround
No verified workaround is recorded. If business-safe, reduce exposure to the affected interface and allow only trusted sources until authoritative guidance is available.
04

Evidence and provenance

Published 8 Nov 2022 · Last source change 1 May 2025, 18:26 UTC · CWE-319 · Cleartext Transmission of Sensitive Information

CVE recordCVE.org · 5.1
CVSS sourceNIST NVD
EPSS source
?The date BlackTree first stored a score for this CVE from the daily FIRST EPSS feed.
FIRST · tracked since 2026-08-14
European sourceENISA EUVD · EUVD-2022-36364
Product sourceCNA
Remediation sourceCVE/CNA references
CWE sourceCNA
NVD statusNVD modified after enrichment

Core structured fields are present and their contributing authorities are shown above.

Material change intelligence

What changed after publication

View recent updates ↗

No material field changes have been recorded since change tracking began. Routine source refreshes and cosmetic edits are intentionally excluded.

Material fields only · duplicate refreshes suppressed · history retained for the configured operational retention period
CVE published
ENISA EUVD · EUVD-2022-36364↗Vendor advisory↗Vendor advisory↗CVE authority or vendor reference↗Official CVE record (CNA and ADP data)↗NVD record↗
Technical terms and abbreviations used in this report
CVE
Common Vulnerabilities and Exposures: the public identifier for one disclosed vulnerability.
CVSS
Common Vulnerability Scoring System: a technical severity framework; it is not patching priority by itself.
EPSS
Exploit Prediction Scoring System: FIRST's estimate of the probability that exploitation activity will be observed in the next 30 days; it is a forecast, not confirmation.
CWE
Common Weakness Enumeration: the standard category describing the underlying software or hardware weakness.
CNA
CVE Numbering Authority: an organisation authorised to assign and publish CVE records.
CISA ADP
Cybersecurity and Infrastructure Security Agency Authorized Data Publisher: structured enrichment added to a CVE record.
NVD
National Vulnerability Database: NIST's enrichment service for CVE records.
CERT / CSIRT
A computer security incident response team that publishes warnings or coordinates incident response.
PoC
Proof of concept: public material that demonstrates or helps reproduce exploitation.
CSAF
Common Security Advisory Framework: a machine-readable format for security advisories.
LoTL
Living off the land: abuse of legitimate tools or system functions during an attack.
Free version - for non-commercial use only.CVE-2022-33321 · cve.blacktree.nl