CVEvulnerability

CVE-2021-20597

9.1 CRITICAL Published 2021-08-06 Modified 2026-06-17 Official page ↗
Status
Modified
Published
2021-08-06
Last modified
2026-06-17
Assigner
[email protected]
CVSS 3.1 ([email protected])
9.1 CRITICAL — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
CVSS 2.0 ([email protected])
6.4 MEDIUM — AV:N/AC:L/Au:N/C:P/I:P/A:N
Weaknesses
CWE-522

Description

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.

Affected configurations

• mitsubishielectric r08sfcpu firmware • mitsubishielectric r16sfcpu firmware • mitsubishielectric r32sfcpu firmware • mitsubishielectric r120sfcpu firmware • mitsubishielectric r08psfcpu firmware • mitsubishielectric r16psfcpu firmware • mitsubishielectric r32psfcpu firmware • mitsubishielectric r120psfcpu firmware

Related

Weakness · CWE (1)

  • CWE-522 Insufficiently Protected Credentials weakness

References