// For flags

CVE-2021-21727

 

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 ZTE product has a DoS vulnerability. A remote attacker can amplify traffic by sending carefully constructed IPv6 packets to the affected devices, which eventually leads to device denial of service. This affects:<ZXHN F623><All versions up to V6.0.0P3T33>

Un producto ZTE presenta una vulnerabilidad de DoS.&#xa0;Un atacante remoto puede amplificar el tráfico mediante el envío de paquetes IPv6 cuidadosamente construidos hacia los dispositivos afectados, lo que eventualmente conlleva a una denegación de servicio del dispositivo.&#xa0;Esto afecta a: (ZXHN F623) (Todas las versiones hasta V6.0.0P3T33)

*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
Complete
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2021-01-04 CVE Reserved
  • 2021-03-29 CVE Published
  • 2023-12-13 EPSS Updated
  • 2024-08-03 CVE Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
CAPEC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Zte
Search vendor "Zte"
 Zxhn F623 Firmware
Search vendor "Zte" for product "Zxhn F623 Firmware"
 < 6.0.0p3t34
Search vendor "Zte" for product "Zxhn F623 Firmware" and version " < 6.0.0p3t34"
-
Affected
in Zte
Search vendor "Zte"
 Zxhn F623
Search vendor "Zte" for product "Zxhn F623"
--
Safe