HOMEVULNERABILITIESCVE-2023-2063
HIGH

CVE-2023-2063

CWE-434Published: June 2, 2023· Updated: Jun 17, 2026

7.3
CVSS v3.1

Official Description

Unrestricted Upload of File with Dangerous Type 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 cause information disclosure, tampering, deletion or destruction via file upload/download. As a result, the attacker may be able to exploit this for further attacks.

NVD Source

Technical Analysis

CVE-2023-2063 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorNetwork
Attack ComplexityLow
Privileges Req.None
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityLow
IntegrityLow
AvailabilityLow
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L

Affected Vendors & Products

mitsubishielectric8 product(s)
fx5-enet\/ip firmwarefx5-enet\/ipsw1dnn-eipct-bd firmwaresw1dnn-eipct-bdrj71eip91 firmwarerj71eip91sw1dnn-eipctfx5-bd firmwaresw1dnn-eipctfx5-bd
Source: NVD CPE · 8 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.

Official Patches & Advisories

ADVISORYhttps://jvn.jp/vu/JVNVU92908006
ADVISORYhttps://www.mitsubishielectric.co.jp/psirt/vulnerability/pdf/2023-004.pdf
ADVISORYhttps://jvn.jp/vu/JVNVU92908006
ADVISORYhttps://www.mitsubishielectric.co.jp/psirt/vulnerability/pdf/2023-004.pdf

All References (4)

→
https://jvn.jp/vu/JVNVU92908006Third Party Advisory
→
https://www.mitsubishielectric.co.jp/psirt/vulnerability/pdf/2023-004.pdfVendor Advisory
→
https://jvn.jp/vu/JVNVU92908006Third Party Advisory
→
https://www.mitsubishielectric.co.jp/psirt/vulnerability/pdf/2023-004.pdfVendor Advisory

Quick Facts

CVE IDCVE-2023-2063
CVSS Score7.3 / 10
SeverityHIGH
WeaknessCWE-434
CISA KEVNo
Affected1 vendor(s)
PublishedJun 2, 2023

Related CVEs (CWE-434)

CVE-2020-35489
10.0
CVE-2021-42645
10.0
CVE-2025-9846
10.0
CVE-2025-60219
10.0
CVE-2025-48106
10.0
CVE-2024-31115
10.0

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2023-2063 in threat intel feeds
  • →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.
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