CVE-2021-20598
Severity Score
5.3
*CVSS v3.1
Exploit Likelihood
*EPSS
Affected Versions
*CPE
Public Exploits
0
*Multiple Sources
Exploited in Wild
-
*KEV
Decision
-
*SSVC
Descriptions
Overly Restrictive Account Lockout Mechanism vulnerability in Mitsubishi Electric MELSEC iQ-R series CPU modules (R08/16/32/120SFCPU all versions, R08/16/32/120PSFCPU all versions) allows a remote unauthenticated attacker to lockout a legitimate user by continuously trying login with incorrect password.
Una vulnerabilidad del Mecanismo de Bloqueo de Cuentas Demasiado Restrictivo en los módulos de CPU de la serie MELSEC iQ-R de Mitsubishi Electric (R08/16/32/120SFCPU todas las versiones, R08/16/32/120PSFCPU todas las versiones) permite a un atacante remoto no autenticado bloquear a un usuario legítimo al intentar iniciar sesión continuamente con una contraseña incorrecta
*Credits:
N/A
CVSS Scores
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
Attack Vector
Attack Complexity
Authentication
Confidentiality
Integrity
Availability
* Common Vulnerability Scoring System
SSVC
- Decision:-
Exploitation
Automatable
Tech. Impact
* Organization's Worst-case Scenario
Timeline
- 2020-12-17 CVE Reserved
- 2021-08-06 CVE Published
- 2024-08-03 CVE Updated
- 2024-08-09 EPSS Updated
- ---------- Exploited in Wild
- ---------- KEV Due Date
- ---------- First Exploit
CWE
- CWE-287: Improper Authentication
CAPEC
References (2)
| URL | Tag | Source |
|---|---|---|
| https://jvn.jp/vu/JVNVU98578731/index.html | Third Party Advisory |
| URL | Date | SRC |
|---|
| URL | Date | SRC |
|---|
| URL | Date | SRC |
|---|---|---|
| https://www.mitsubishielectric.com/en/psirt/vulnerability/pdf/2021-010_en.pdf | 2021-08-27 |
Affected Vendors, Products, and Versions
| Vendor | Product | Version | Other | Status | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Vendor | Product | Version | Other | Status | <-- --> | Vendor | Product | Version | Other | Status |
| Mitsubishielectric Search vendor "Mitsubishielectric" | R08sfcpu Firmware Search vendor "Mitsubishielectric" for product "R08sfcpu Firmware" | * | - |
Affected
| in | Mitsubishielectric Search vendor "Mitsubishielectric" | R08sfcpu Search vendor "Mitsubishielectric" for product "R08sfcpu" | - | - |
Safe
|
| Mitsubishielectric Search vendor "Mitsubishielectric" | R16sfcpu Firmware Search vendor "Mitsubishielectric" for product "R16sfcpu Firmware" | * | - |
Affected
| in | Mitsubishielectric Search vendor "Mitsubishielectric" | R16sfcpu Search vendor "Mitsubishielectric" for product "R16sfcpu" | - | - |
Safe
|
| Mitsubishielectric Search vendor "Mitsubishielectric" | R32sfcpu Firmware Search vendor "Mitsubishielectric" for product "R32sfcpu Firmware" | * | - |
Affected
| in | Mitsubishielectric Search vendor "Mitsubishielectric" | R32sfcpu Search vendor "Mitsubishielectric" for product "R32sfcpu" | - | - |
Safe
|
| Mitsubishielectric Search vendor "Mitsubishielectric" | R120sfcpu Firmware Search vendor "Mitsubishielectric" for product "R120sfcpu Firmware" | * | - |
Affected
| in | Mitsubishielectric Search vendor "Mitsubishielectric" | R120sfcpu Search vendor "Mitsubishielectric" for product "R120sfcpu" | - | - |
Safe
|
| Mitsubishielectric Search vendor "Mitsubishielectric" | R08psfcpu Firmware Search vendor "Mitsubishielectric" for product "R08psfcpu Firmware" | * | - |
Affected
| in | Mitsubishielectric Search vendor "Mitsubishielectric" | R08psfcpu Search vendor "Mitsubishielectric" for product "R08psfcpu" | - | - |
Safe
|
| Mitsubishielectric Search vendor "Mitsubishielectric" | R16psfcpu Firmware Search vendor "Mitsubishielectric" for product "R16psfcpu Firmware" | * | - |
Affected
| in | Mitsubishielectric Search vendor "Mitsubishielectric" | R16psfcpu Search vendor "Mitsubishielectric" for product "R16psfcpu" | - | - |
Safe
|
| Mitsubishielectric Search vendor "Mitsubishielectric" | R32psfcpu Firmware Search vendor "Mitsubishielectric" for product "R32psfcpu Firmware" | * | - |
Affected
| in | Mitsubishielectric Search vendor "Mitsubishielectric" | R32psfcpu Search vendor "Mitsubishielectric" for product "R32psfcpu" | - | - |
Safe
|
| Mitsubishielectric Search vendor "Mitsubishielectric" | R120psfcpu Firmware Search vendor "Mitsubishielectric" for product "R120psfcpu Firmware" | * | - |
Affected
| in | Mitsubishielectric Search vendor "Mitsubishielectric" | R120psfcpu Search vendor "Mitsubishielectric" for product "R120psfcpu" | - | - |
Safe
|