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Vulnerability record · CVE-2021-20037 · published 21 September 2021

CVE-2021-20037: Sonicwall global vpn client incorrect default permissions vulnerability

Sonicwall · Global Vpn Client

SonicWall Global VPN Client 4.10.5 installer (32-bit and 64-bit) incorrect default file permission vulnerability leads to privilege escalation which potentially allows command execution in the host operating system. This vulnerability impacts GVC 4.10.5 installer and earlier.

7.8 CVSS 3.1 High EPSS 0.42% · top 66.5% CWE-276 · Incorrect default permissions
7.8CVSS 3.1 base score, v2 7.2
0.42%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 4.10.5 installer (32-bit and 64-bit) incorrect default file permission vulnerability leads to privilege escalation which potentially allows command execution in the host operating system. This vulnerability impacts GVC 4.10.5 installer and earlier.

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/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-2021-0024 Vendor Advisory
https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2021-0024 Vendor Advisory

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Related vulnerabilities

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

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Source: NIST National Vulnerability Database (record CVE-2021-20037), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.