AUGUST 4, 2026
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Case File

CVE-2021-20041

HIGH · CVSS 7.5 EPSS 6.78%

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 7.5. It may be remotely exploitable.

CVE
CVE-2021-20041
Severity
HIGH
CVSS
7.5
EPSS
6.78%

Original NVD Description

An unauthenticated and remote adversary can consume all of the device's CPU due to crafted HTTP requests sent to SMA100 /fileshare/sonicfiles/sonicfiles resulting in a loop with unreachable exit condition. This vulnerability affected SMA 200, 210, 400, 410 and 500v appliances.

Related CVEs

Other vulnerabilities affecting the same vendor(s)