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Fencer Vulns
medium 6.2

CVE-2023-2061 json

Authentication bypass vulnerability in MELSEC iQ-R Series / iQ-F Series EtherNet/IP Modules

published 2023-06-02 3 y ago modified 2026-06-17 4 mo ago also EUVD-2023-33587

cvss
6.2
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.5%
EPSS 0.5% chance of exploitation in 30 days, percentile 46%
public exploits
0
none known

Summary

Use of Hard-coded Password vulnerability in FTP function on Mitsubishi Electric Corporation MELSEC iQ-R Series EtherNet/IP module RJ71EIP91 and MELSEC iQ-F Series EtherNet/IP module FX5-ENET/IP allows a remote unauthenticated attacker to obtain a hard-coded password and access to the module via FTP.

Vendor advisories

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

cisa ICSA-23-157-02 updated cvss 6.2

Mitsubishi Electric MELSEC iQ-R Series/iQ-F Series (Update C)

  • Mitsubishi Electric FX5-ENET/IP Mitsubishi Electric RJ71EIP91
    affected: vendor fix, mitigation “Mitsubishi Electric recommends that users of the affected products take the following actions:” 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
no
Technical impact
partial
Assessed
20 mo ago

Exploit prediction

0.55% chance of exploitation in the next 30 days, higher than 46% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.1 6.2 CVSS:3.1/AV:L/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 MELSEC iQ-R Series EtherNet/IP module RJ71EIP91
  • Mitsubishi Electric Corporation MELSEC iQ-F Series EtherNet/IP module FX5-ENET/IP

Classification

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

References

Sources

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.