CVE-2021-20026

HighCVSS 8.8/10Last modified Jun 17, 2026

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.

Metrics

CVSS 3.1 8.8/10CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Weakness enumeration

CWE-78

Affected software

No affected versions have been published.

Timeline

Published
May 27, 2021
Last modified
Jun 17, 2026
NVD status
Modified

Related CVEs from 2021

CVE-2021-200277.5A buffer overflow vulnerability in SonicOS allows a remote attacker to cause a Denial of Service (DoS) by sending a specially crafted requesCVE-2021-200289.8Improper neutralization of a SQL Command leading to SQL Injection vulnerability impacting end-of-life Secure Remote Access (SRA) products, sCVE-2021-20035.4Vulnerability in the Business Intelligence Enterprise Edition product of Oracle Fusion Middleware (component: Analytics Web Dashboards). SupCVE-2021-200307.5SonicWall GMS is vulnerable to file path manipulation resulting that an unauthenticated attacker can gain access to web directory containingCVE-2021-200316.1A Host Header Redirection vulnerability in SonicOS potentially allows a remote attacker to redirect firewall management users to arbitrary wCVE-2021-200329.8SonicWall Analytics 2.5 On-Prem is vulnerable to Java Debug Wire Protocol (JDWP) interface security misconfiguration vulnerability which potCVE-2021-200349.1An improper access control vulnerability in SMA100 allows a remote unauthenticated attacker to bypass the path traversal checks and delete aCVE-2021-200356.5Improper neutralization of special elements in the SMA100 management interface allows a remote authenticated attacker to inject arbitrary coCVE-2021-200377.8SonicWall Global VPN Client 4.10.5 installer (32-bit and 64-bit) incorrect default file permission vulnerability leads to privilege escalatiCVE-2021-200389.8A Stack-based buffer overflow vulnerability in SMA100 Apache httpd server's mod_cgi module environment variables allows a remote unauthenticCVE-2021-200398.8Improper neutralization of special elements in the SMA100 management interface '/cgi-bin/viewcert' POST http method allows a remote authentiCVE-2021-20044.3Vulnerability in the Siebel Core - Server BizLogic Script product of Oracle Siebel CRM (component: Integration - Scripting). Supported versi
CVE-2021-20026: High severity, CVSS 8.8 | Vulnix