Vulnerability Details : CVE-2021-20597

Insufficiently Protected Credentials vulnerability in Mitsubishi Electric MELSEC iQ-R series Safety CPU modules R08/16/32/120SFCPU firmware versions "26" and prior and Mitsubishi Electric MELSEC iQ-R series SIL2 Process CPU modules R08/16/32/120PSFCPU firmware versions "11" and prior allows a remote unauthenticated attacker to login to the target unauthorizedly by sniffing network traffic and obtaining credentials when registering user information in the target or changing a password.
Published 2021-08-06 17:15:07
Updated 2024-05-24 08:15:09
Source Mitsubishi Electric Corporation
View at NVD,   CVE.org

Products affected by CVE-2021-20597

Exploit prediction scoring system (EPSS) score for CVE-2021-20597

EPSS FAQ
0.36%
Probability of exploitation activity in the next 30 days EPSS Score History
~ 72 %
Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2021-20597

Base Score Base Severity CVSS Vector Exploitability Score Impact Score Score Source First Seen
6.4
 MEDIUM AV:N/AC:L/Au:N/C:P/I:P/A:N
10.0
4.9
 NIST
9.1
 CRITICAL CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
3.9
5.2
 NIST

CWE ids for CVE-2021-20597

  • The product transmits or stores authentication credentials, but it uses an insecure method that is susceptible to unauthorized interception and/or retrieval.
    Assigned by: nvd@nist.gov (Primary)

References for CVE-2021-20597

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