CVE Tools
Sign in

CVE-2021-20026

Published: May 27, 2021Updated: Nov 21, 2024 Sources: CVE List NVD BDUCWE-78
8.8HIGH
NVD MITRE
EPSS Score
11.6%
Top 4.4%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available
Self-Check
OpenVAS

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.

No summary for this CVE yet.

CVSS Vector Breakdown

AV:NAC:LPR:LUI:NS:UC:HI:HA:H
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:LPrivileges Required
Low
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:HConfidentiality
High
I:HIntegrity
High
A:HAvailability
High
Open in CVSS calculator →

Weaknesses

CWE-78

Affected Products

SonicWall
commercial·US
network security manager
Networking Infrastructure
SonicWall NSM On-Prem
Networking Infrastructure
Network Security Manager (NSM)
Networking Infrastructure

Exploitability

Official Patch Available
Is your org exposed to CVE-2021-20026?We can run the check for you — a free external exposure review, no install. Check my exposure

Attack Graph

Products CVE Techniques Tactics

Click technique nodes for MITRE ATT&CK details · drag to pan · Ctrl/⌘ + scroll to zoom, or go fullscreen.

MITRE ATT&CK

1 technique
Execution
View detailed technique mapping

References

https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2021-0014
psirt.global.sonicwall.com
https://nvd.nist.gov/vuln/detail/CVE-2021-20026
nvd.nist.gov
https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2021-0014
psirt.global.sonicwall.com
and 1 more references View all →

Unlock Complete Vulnerability Intelligence

Get the full picture for CVE-2021-20026 and every CVE in our database. Create a free account — no credit card required.

Create Free Account
Plain-language analysis
Impact assessment and exploitation scenario in plain English
Attack graph visualization
Interactive attack path and kill chain mapping
Exploit details & PoC links
ExploitDB, Metasploit, GitHub PoCs with direct links
Nuclei scanner templates
Ready-to-use vulnerability scanner templates
Full remediation guide
Patch instructions, workarounds, and compliance impact
Interactive AI chat
Ask questions about this vulnerability in natural language
Related vulnerabilities
Semantically similar CVEs and attack patterns
REST API & MCP access
Integrate vulnerability data into your workflows