Use of Hard-coded Password vulnerability in Mitsubishi Electric Corporation GX Works3 versions from 1.015R to 1.095Z allows a remote unauth…

published 2022-11-24 3 y ago modified 2026-06-17 4 mo ago also EUVD-2022-34149

cvss: 7.5; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 1.4%; EPSS 1.4% chance of exploitation in 30 days, percentile 72%
public exploits: 0; none known

Use of Hard-coded Password vulnerability in Mitsubishi Electric Corporation GX Works3 versions from 1.015R to 1.095Z allows a remote unauthenticated attacker to obtain information about the project file for MELSEC safety CPU modules.

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

cisa ICSA-22-333-05 updated 2025-11-25 cvss 7.5

Mitsubishi Electric FA Engineering Software (Update C)

Mitsubishi Electric GX Works3 >=1.015R, <1.087R, 1.090U, 1.095Z
affected: vendor fix, mitigation “Mitsubishi Electric released and recommends users update to the latest version:” mitsubishielectric.com

From CISA ICS and IT advisories (CSAF, https://github.com/cisagov/CSAF), a U.S. Government work; changed: reduced to products, statuses and remediations. CISA notification · csaf

CISA SSVC

Exploitation: none
Automatable: yes
Technical impact: partial
Assessed: 18 mo ago (2025-04-25)

Exploit prediction

1.42% chance of exploitation in the next 30 days, higher than 72% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
CNA	3.1	7.5	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
NVD	3.1	7.5	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Affected products

Mitsubishi Electric Corporation GX Works3

Classification

Weakness

CWE-259 Use of Hard-coded Password
CWE-798 Use of Hard-coded Credentials

References

mitsubishielectric.com /en/psirt/vulnerability/pdf/2022-015_en.pdf
vendor-advisory, mitigation
jvn.jp /vu/JVNVU97244961
government-resource, third-party-advisory, vdb-entry
cisa.gov /uscert/ics/advisories/icsa-22-333-05
government-resource

Sources

CVE List CVE-2022-29831
NVD CVE-2022-29831

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

Summary