Vulnerability · Published Oct 13, 2023 · Assigned by Mitsubishi
CVE-2023-4562Information Disclosure, Information Tampering and Authentication Bypass Vulnerability in MELSEC-F Series main module
Critical 9.1
In plain English
A critical-severity improper authentication in MELSEC-F Series FX3U-128MR/DS from Mitsubishi Electric Corporation. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 1.2% (higher than 69% of all known vulnerabilities).
Official 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.
Affected products (as reported)
Weakness: CWE-287 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
References
- https://www.mitsubishielectric.com/en/psirt/vulnerability/pdf/2023-012_en.pdf vendor-advisory
- https://jvn.jp/vu/JVNVU90509290/ government-resource
- https://www.cisa.gov/news-events/ics-advisories/icsa-23-285-13 government-resource