VULNERABILITY INTELLIGENCE

CVE-2020-5135

CVSS score9.8 CRITICAL
EPSS probability26.87%
CISA KEVKnown exploited vulnerability
Published2020-10-12
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Known Exploited Vulnerability

SonicWall SonicOS Buffer Overflow Vulnerability

Vendor / product: SonicWall / SonicOS

Description

A buffer overflow vulnerability in SonicOS allows a remote attacker to cause Denial of Service (DoS) and potentially execute arbitrary code by sending a malicious request to the firewall. This vulnerability affected SonicOS Gen 6 version 6.5.4.7, 6.5.1.12, 6.0.5.3, SonicOSv 6.5.4.v and Gen 7 version 7.0.0.0.

Weakness classification

  • PSIRT@sonicwall.com: CWE-120
  • nvd@nist.gov: CWE-120

Primary references