by Kastro
Paper/Archive/CVE-2023-2846

CVE-2023-2846

Mitsubishi Electric Corporation MELSEC-F Series FX3U-16MR/ES — Authentication Bypass Vulnerability in MELSEC-F Series main module

EPSS 1%CVSS 9.1
critical.is priorityof 100
42
CVSS 9.1 (NVD)9.1 / 10 × 3027.3Not in CISA KEV+300.0EPSS percentile 70.9.709 × 2014.2No public exploit+100.0SSVC exploitation: none+100.0
Description · from the CVE record

Authentication Bypass by Capture-replay vulnerability in Mitsubishi Electric Corporation MELSEC iQ-F Series main modules allows a remote unauthenticated attacker to cancel the password/keyword setting and login to the affected products by sending specially crafted packets.

Affected

ProductAffectedFixed inSource
MELSEC-F Series FX3U-16MR/ESall versions–CNA
MELSEC-F Series FX3U-16MT/ESall versions–CNA
MELSEC-F Series FX3U-16MT/ESSall versions–CNA
MELSEC-F Series FX3U-32MR/ESall versions–CNA
MELSEC-F Series FX3U-32MT/ESall versions–CNA
MELSEC-F Series FX3U-32MT/ESSall versions–CNA
MELSEC-F Series FX3U-48MR/ESall versions–CNA
MELSEC-F Series FX3U-48MT/ESall versions–CNA
MELSEC-F Series FX3U-48MT/ESSall versions–CNA
MELSEC-F Series FX3U-64MR/ESall versions–CNA
MELSEC-F Series FX3U-64MT/ESall versions–CNA
MELSEC-F Series FX3U-64MT/ESSall versions–CNA

Scores by source

NVD9.1CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
Mitsubishi (CNA)7.5CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
CISA ADPSSVCExploitation: none · Automatable: yes · Technical impact: partial

References

refmitsubishielectric.com/en/psirt/vulnerability/pdf/2023-005_en.pdfrefjvn.jp/vu/JVNVU94519952refcisa.gov/news-events/ics-advisories/icsa-23-180-04