AUGUST 4, 2026
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Case File

CVE-2021-20043

HIGH · CVSS 8.8 EPSS 23.26%

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2021-12-08 · Last synced 2026-08-04

CyberRota Analysis

This is a high severity vulnerability with a CVSS score of 8.8. Its EPSS score suggests a 23.3% probability of exploitation in the next 30 days. It may be remotely exploitable. Exploitation may require the attacker to be authenticated.

CVE
CVE-2021-20043
Severity
HIGH
CVSS
8.8
EPSS
23.26%

Original NVD Description

A Heap-based buffer overflow vulnerability in SonicWall SMA100 getBookmarks method allows a remote authenticated attacker to potentially execute code as the nobody user in the appliance. This vulnerability affected SMA 200, 210, 400, 410 and 500v appliances.

Related CVEs

Other vulnerabilities affecting the same vendor(s)