CVE-2021-20026

HIGH 8.8CVE-2021-20026 · Published 27/05/2021 · updated 17/06/2026

In short

CVE-2021-20026 is a HIGH (CVSS 8.8) vulnerability affecting network security manager (sonicwall).
Chance of exploitation in the next 30 days (EPSS): 11.6%, higher than 96.1% of all vulnerabilities.
Fix: update to 2.2.0 or later.

Package	Affected versions	Patched versions
network security manager sonicwall	`= 2.2.0< 2.2.0`	`2.2.0`

Description

A vulnerability in the SonicWall NSM On-Prem product allows an authenticated attacker to perform OS command injection using a crafted HTTP request. This vulnerability affects NSM On-Prem 2.2.0-R10 and earlier versions.

References

psirt.global.sonicwall.com/vuln-detail/SNWLID-2021-0014 · Vendor Advisory

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