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Critical severity · published Oct 13, 2023
CVE-2023-4562
Information Disclosure, Information Tampering and Authentication Bypass Vulnerability in MELSEC-F Series main module
9.1
CVSS
1.2%
EPSS
No
On KEV
Description
Improper Authentication vulnerability in Mitsubishi Electric Corporation MELSEC-F Series main modules allows a remote unauthenticated attacker to obtain sequence programs from the product or write malicious sequence programs or improper data in the product without authentication by sending illegitimate messages.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)1.2% · higher than 68% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
MS
MELSEC-F Series FX3U-128MR/DS · Mitsubishi Electric Corporation
all versions · source: vendor
MS
MELSEC-F Series FX3U-128MR/ES · Mitsubishi Electric Corporation
all versions · source: vendor
MS
MELSEC-F Series FX3U-128MR/ES-A · Mitsubishi Electric Corporation
all versions · source: vendor
MS
MELSEC-F Series FX3U-128MT/DS · Mitsubishi Electric Corporation
all versions · source: vendor
MS
MELSEC-F Series FX3U-128MT/DSS · Mitsubishi Electric Corporation
all versions · source: vendor
MS
MELSEC-F Series FX3U-128MT/ES · Mitsubishi Electric Corporation
all versions · source: vendor
MS
MELSEC-F Series FX3U-128MT/ES-A · Mitsubishi Electric Corporation
all versions · source: vendor
MS
MELSEC-F Series FX3U-128MT/ESS · Mitsubishi Electric Corporation
all versions · source: vendor
MS
MELSEC-F Series FX3U-16MR/DS · Mitsubishi Electric Corporation
all versions · source: vendor
MS
MELSEC-F Series FX3U-16MR/ES · Mitsubishi Electric Corporation
all versions · source: vendor
MS
MELSEC-F Series FX3U-16MR/ES-A · Mitsubishi Electric Corporation
all versions · source: vendor
MS
MELSEC-F Series FX3U-16MT/DS · Mitsubishi Electric Corporation
all versions · source: vendor
Affected product
MS
MELSEC-F Series FX3U-128MR/DS
Mitsubishi Electric Corporation
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2023-4562
CVE.org
https://www.cve.org/CVERecord?id=CVE-2023-4562
Third Party Advisory
https://jvn.jp/vu/JVNVU90509290/
Third Party Advisory
https://www.cisa.gov/news-events/ics-advisories/icsa-23-285-13
Vendor Advisory
https://www.mitsubishielectric.com/en/psirt/vulnerability/pdf/2023-012_en.pdf
More from MELSEC-F Series FX3U-128MR/DS
9.1
CVE-2023-4699
Arbitrary Command Execution Vulnerability in Mitsubishi Electric proprietary protocol communication of multiple FA products