Mitsubishi Electric G-50 missing authentication

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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9.6$0-$5k0.00

Summaryinfo

A vulnerability has been found in Mitsubishi Electric G-50, G-50-W, G-50A, GB-50, GB-50A, GB-24A, G-150AD, AG-150A-A, AG-150A-J, GB-50AD, GB-50ADA-A, GB-50ADA-J, EB-50GU-A, EB-50GU-J, AE-200J, AE-200A, AE-200E, AE-50J, AE-50A, AE-50E, EW-50J, EW-50A, EW-50E, TE-200A, TE-50A, TW-50A and CMS-RMD-J and classified as critical. The affected element is an unknown function. This manipulation causes missing authentication. This vulnerability appears as CVE-2025-3699. The attack may be initiated remotely. There is no available exploit. The affected component should be upgraded.

Detailsinfo

A vulnerability has been found in Mitsubishi Electric G-50, G-50-W, G-50A, GB-50, GB-50A, GB-24A, G-150AD, AG-150A-A, AG-150A-J, GB-50AD, GB-50ADA-A, GB-50ADA-J, EB-50GU-A, EB-50GU-J, AE-200J, AE-200A, AE-200E, AE-50J, AE-50A, AE-50E, EW-50J, EW-50A, EW-50E, TE-200A, TE-50A, TW-50A and CMS-RMD-J (SCADA Software) and classified as very critical. Affected by this vulnerability is an unknown part. The manipulation with an unknown input leads to a missing authentication vulnerability. The CWE definition for the vulnerability is CWE-306. The product does not perform any authentication for functionality that requires a provable user identity or consumes a significant amount of resources. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

Missing Authentication for Critical Function vulnerability in Mitsubishi Electric Corporation G-50 all versions, G-50-W all versions, G-50A all versions, GB-50 all versions, GB-50A all versions, GB-24A all versions, G-150AD all versions, AG-150A-A all versions, AG-150A-J all versions, GB-50AD all versions, GB-50ADA-A all versions, GB-50ADA-J all versions, EB-50GU-A all versions, EB-50GU-J all versions, AE-200J all versions, AE-200A all versions, AE-200E all versions, AE-50J all versions, AE-50A all versions, AE-50E all versions, EW-50J all versions, EW-50A all versions, EW-50E all versions, TE-200A all versions, TE-50A all versions, TW-50A all versions, and CMS-RMD-J all versions allows a remote unauthenticated attacker to bypass authentication and then control the air conditioning systems illegally, or disclose information in them by exploiting this vulnerability. In addition, the attacker may tamper with firmware for them using the disclosed information.

It is possible to read the advisory at cisa.gov. This vulnerability is known as CVE-2025-3699. The exploitation appears to be easy. The attack can be launched remotely. The exploitation doesn't need any form of authentication. The technical details are unknown and an exploit is not publicly available. The pricing for an exploit might be around USD $0-$5k at the moment (estimation calculated on 12/23/2025).

Upgrading eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2025-19244). Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Type

Vendor

Name

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 9.8
VulDB Meta Temp Score: 9.6

VulDB Base Score: 9.8
VulDB Temp Score: 9.4
VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA Base Score: 9.8
CNA Vector: 🔒

CVSSv2info

AVACAuCIA
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💳💳💳💳💳💳
💳💳💳💳💳💳
VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Missing authentication
CWE: CWE-306 / CWE-287
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Timelineinfo

06/26/2025 Advisory disclosed
06/26/2025 +0 days VulDB entry created
12/23/2025 +180 days VulDB entry last update

Sourcesinfo

Advisory: cisa.gov
Status: Confirmed

CVE: CVE-2025-3699 (🔒)
GCVE (CVE): GCVE-0-2025-3699
GCVE (VulDB): GCVE-100-314023
EUVD: 🔒

Entryinfo

Created: 06/26/2025 18:34
Updated: 12/23/2025 02:41
Changes: 06/26/2025 18:34 (50), 06/26/2025 18:35 (1), 06/26/2025 19:15 (1), 06/26/2025 19:16 (1), 06/27/2025 02:22 (1), 06/27/2025 12:45 (11), 07/01/2025 00:41 (1), 12/23/2025 02:41 (1)
Complete: 🔍
Cache ID: 216::103

Be aware that VulDB is the high quality source for vulnerability data.

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