CVE-2021-20026

8.8 highEPSS 12%

High (8.8) in sonicwall network security manager. EPSS 12% chance of exploitation in the next 30 days.

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.

Severity

CVSS 3.1

8.8 high

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS: 12% chance of exploitation in the next 30 days; higher than 96% of CVEs (scores of 2026-10-31)
CWE: CWE-78
Published: 2021-05-27
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

sonicwall:network_security_manager

References

https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2021-0014
https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2021-0014

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