CVEvulnerability

CVE-2021-20599

7.5 HIGH Published 2021-10-14 Modified 2026-06-17 Official page ↗
Status
Modified
Published
2021-10-14
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 3.1 ([email protected])
7.5 HIGH — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
CVSS 2.0 ([email protected])
5.0 MEDIUM — AV:N/AC:L/Au:N/C:P/I:N/A:N
Weaknesses
CWE-319, CWE-639

Description

Cleartext Transmission of Sensitive InformationCleartext transmission of sensitive information vulnerability in MELSEC iQ-R series Safety CPU R08/16/32/120SFCPU firmware versions "26" and prior and MELSEC iQ-R series SIL2 Process CPU R08/16/32/120PSFCPU firmware versions "11" and prior allows a remote unauthenticated attacker to login to a target CPU module by obtaining credentials other than 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 (2)

  • CWE-319 Cleartext Transmission of Sensitive Information weakness
  • CWE-639 Authorization Bypass Through User-Controlled Key weakness

References