Vulnerabilities > CVE-2021-20046 - Out-of-bounds Write vulnerability in Sonicwall Sonicos

047910
CVSS 6.5 - MEDIUM
Attack vector
NETWORK
Attack complexity
LOW
Privileges required
SINGLE
Confidentiality impact
PARTIAL
Integrity impact
PARTIAL
Availability impact
PARTIAL
network
low complexity
sonicwall
CWE-787

Summary

A Stack-based buffer overflow in the SonicOS HTTP Content-Length response header allows a remote authenticated attacker to cause Denial of Service (DoS) and potentially results in code execution in the firewall. This vulnerability affected SonicOS Gen 5, Gen 6 and Gen 7 firmware versions.

Vulnerable Configurations

Part Description Count
OS
Sonicwall
74
Hardware
Sonicwall
58

Common Weakness Enumeration (CWE)