CVE-2020-5135CISA KEVEPSS p97.8%

CVE-2020-5135SonicWall SonicOS Buffer Overflow Vulnerability

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.

Scoring

EPSS26.87% probability of exploitation · percentile 97.8% · 2026-06-18T12:00:27Z

CISA KEV entry

Added to KEV: 2022-03-15

(incoming)1

TypeTargetConfidenceTier
KEVEntrySonicWall SonicOS Buffer Overflow Vulnerabilitykev-cve-2020-51350%live

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Sourced from NVD + CISA KEV + FIRST.org EPSS. Curated for EU compliance use cases by Adam Lundqvist, Founder at SQUR.