CVE-2022-33323

Authentication Bypass Vulnerability in Robot Controller of MELFA SD/SQ series and F-series

7.5 High

Active Debug Code vulnerability in robot controller of Mitsubishi Electric Corporation industrial robot MELFA SD/SQ Series and MELFA F-Series allows a remote unauthenticated attacker to gain unauthorized access by authentication bypass through an unauthorized telnet login. As for the affected model names, controller types and firmware versions, see the Mitsubishi Electric's advisory which is listed in [References] section.

Attack profile

How easy it is to exploit

Attack vector: Network
Complexity: Low
Privileges needed: None
User interaction: None

What an attacker can affect

Confidentiality: None
Integrity: High
Availability: None

Exploit likelihood

1.14%Unchanged since Feb 2, 2023

What each source reports

CVE List Score used7.5

Authentication Bypass Vulnerability in Robot Controller of MELFA SD/SQ series and F-series

Record: CVE-2022-33323
CVSS 3.1: 7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Weakness: CWE-489
Updated: 2026-11-02

EUVDEUVD-2022-363667.5

Record: EUVD-2022-36366
CVSS 3.1: 7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Updated: 2026-11-02

GitHub AdvisoriesGHSA-w747-g6fp-45p67.5

Active Debug Code vulnerability in robot controller of Mitsubishi Electric Corporation industrial...

Record: GHSA-w747-g6fp-45p6
CVSS 3.1: 7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Weakness: CWE-489, CWE-863
Updated: 2026-11-02

NVD7.5

Record: CVE-2022-33323
CVSS 3.1: 7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Weakness: CWE-489
Updated: 2026-11-02

Affected products

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History

History
Recorded	Changed	Sources
Nov 2, 2026	first indexed	CVE List, EUVD, GitHub Advisories, NVD

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2022-33323 is a high vulnerability (CVSS 7.5) in Mitsubishi Electric Corporation Melfa F Series Controller Cr750-02vd-1 Of Rv-2f-d, published February 2, 2023. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.14%, the 67th percentile. No source names a fixed version.