// For flags

CVE-2021-37206

 

Severity Score

7.5
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

A vulnerability has been identified in SIPROTEC 5 relays with CPU variants CP050 (All versions < V8.80), SIPROTEC 5 relays with CPU variants CP100 (All versions < V8.80), SIPROTEC 5 relays with CPU variants CP300 (All versions < V8.80). Received webpackets are not properly processed. An unauthenticated remote attacker with access to any of the Ethernet interfaces could send specially crafted packets to force a restart of the target device.

Se ha identificado una vulnerabilidad en los relés SIPROTEC 5 con variantes de CPUCP050 (Todas las versiones anteriores a V8.80), relés SIPROTEC 5 con variantes de CPUCP100 (Todas las versiones anteriores a V8.80), relés SIPROTEC 5 con variantes de CPUCP300 (Todas las versiones anteriores a V8.80). Los paquetes web recibidos no se procesan correctamente. Un atacante remoto no autenticado con acceso a cualquiera de las interfaces Ethernet podría enviar paquetes especialmente diseñados para forzar el reinicio del dispositivo de destino

*Credits: N/A
CVSS Scores
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High
Attack Vector
Network
Attack Complexity
Low
Authentication
None
Confidentiality
None
Integrity
None
Availability
Partial
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2021-07-21 CVE Reserved
  • 2021-09-14 CVE Published
  • 2024-05-30 EPSS Updated
  • 2024-08-04 CVE Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-20: Improper Input Validation
CAPEC
References (1)
URL Tag Source
URL Date SRC
URL Date SRC
https://cert-portal.siemens.com/productcert/pdf/ssa-500748.pdf 2021-12-14
URL Date SRC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Siemens
Search vendor "Siemens"
 Siprotec 5 With Cpu Variant Cp050
Search vendor "Siemens" for product "Siprotec 5 With Cpu Variant Cp050"
 < 8.80
Search vendor "Siemens" for product "Siprotec 5 With Cpu Variant Cp050" and version " < 8.80"
-
Affected
Siemens
Search vendor "Siemens"
 Siprotec 5 With Cpu Variant Cp100
Search vendor "Siemens" for product "Siprotec 5 With Cpu Variant Cp100"
 < 8.80
Search vendor "Siemens" for product "Siprotec 5 With Cpu Variant Cp100" and version " < 8.80"
-
Affected
Siemens
Search vendor "Siemens"
 Siprotec 5 With Cpu Variant Cp300
Search vendor "Siemens" for product "Siprotec 5 With Cpu Variant Cp300"
 < 8.80
Search vendor "Siemens" for product "Siprotec 5 With Cpu Variant Cp300" and version " < 8.80"
-
Affected