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Vulnerability record · CVE-2021-20047 · published 8 December 2021

CVE-2021-20047: Sonicwall global vpn client uncontrolled search path element vulnerability

Sonicwall · Global Vpn Client

SonicWall Global VPN client version 4.10.6 (32-bit and 64-bit) and earlier have a DLL Search Order Hijacking vulnerability. Successful exploitation via a local attacker could result in remote code execution in the target system.

7.8 CVSS 3.1 High EPSS 0.85% · top 43.4% CWE-427 · Uncontrolled search path element
7.8CVSS 3.1 base score, v2 6.9
0.85%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
2References
17 Jun 2026Last modified by NVD

Description

SonicWall Global VPN client version 4.10.6 (32-bit and 64-bit) and earlier have a DLL Search Order Hijacking vulnerability. Successful exploitation via a local attacker could result in remote code execution in the target system.

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

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2021-0025 Vendor Advisory
https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2021-0025 Vendor Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

9.3CVE-2007-6273Sonicwall global vpn client vulnerabilityMultiple format string vulnerabilities in the configuration file in SonicWALL GLobal VPN Client 3.1.556 and 4.0.0.810 allow user-assisted remote atta…EPSS 6.2%8.6CVE-2020-5145Sonicwall global vpn client uncontrolled search path element vulnerabilitySonicWall Global VPN client version 4.10.4.0314 and earlier have an insecure library loading (DLL hijacking) vulnerability. Successful exploitation c…EPSS 1.2%7.8CVE-2021-20051Sonicwall global vpn client uncontrolled search path element vulnerabilitySonicWall Global VPN Client 4.10.7.1117 installer (32-bit and 64-bit) and earlier versions have a DLL Search Order Hijacking vulnerability in one of …EPSS 0.74%7.8CVE-2021-20037Sonicwall global vpn client incorrect default permissions vulnerabilitySonicWall Global VPN Client 4.10.5 installer (32-bit and 64-bit) incorrect default file permission vulnerability leads to privilege escalation which …EPSS 0.42%7.8CVE-2020-5144Sonicwall global vpn client untrusted search path vulnerabilitySonicWall Global VPN client version 4.10.4.0314 and earlier allows unprivileged windows user to elevate privileges to SYSTEM through loaded process h…EPSS 0.58%7.8CVE-2020-3433Cisco AnyConnect Windows client DLL hijacking via IPC channelCisco AnyConnect Secure Mobility Client for Windows fails to properly validate resources loaded at run time, allowing a DLL hijacking attack through …KEVEPSS 10%analysed6.5CVE-2020-3153Cisco AnyConnect Windows Installer Path Handling Privilege EscalationThe Cisco AnyConnect Secure Mobility Client for Windows installer mishandles directory paths, letting an authenticated local user copy attacker-suppl…KEVEPSS 28%analysed

Source: NIST National Vulnerability Database (record CVE-2021-20047), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.