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Vulnerability record · CVE-2021-20025 · published 13 May 2021

CVE-2021-20025: Sonicwall email security virtual appliance hard-coded credentials vulnerability

Sonicwall · Email Security Virtual Appliance

SonicWall Email Security Virtual Appliance version 10.0.9 and earlier versions contain a default username and a password that is used at initial setup. An attacker could exploit this transitional/temporary user account from the trusted domain to access the Virtual Appliance remotely only when the device is freshly installed and not connected to Mysonicwall.

7.8 CVSS 3.1 High EPSS 0.36% · top 73.0% CWE-798 · Hard-coded credentials
7.8CVSS 3.1 base score, v2 6.9
0.36%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
2References
17 Jun 2026Last modified by NVD

Description

SonicWall Email Security Virtual Appliance version 10.0.9 and earlier versions contain a default username and a password that is used at initial setup. An attacker could exploit this transitional/temporary user account from the trusted domain to access the Virtual Appliance remotely only when the device is freshly installed and not connected to Mysonicwall.

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-2021-0012 Vendor Advisory
https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2021-0012 Vendor Advisory

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Related vulnerabilities

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

9.8CVE-2021-20021SonicWall Email Security improper privilege management allows admin account creationSonicWall Email Security 10.0.9.x contains an improper privilege management flaw that lets an attacker create an administrative account by sending a …KEVEPSS 89%analysed7.2CVE-2021-20022SonicWall Email Security post-auth unrestricted file uploadSonicWall Email Security 10.0.9.x allows an authenticated attacker to upload an arbitrary file to the remote host (CWE-434). Because the upload is un…KEVEPSS 17%analysed4.9CVE-2021-20023SonicWall Email Security path traversal allows authenticated file readSonicWall Email Security 10.0.9.x contains a path traversal flaw (CWE-22) that lets an authenticated attacker read arbitrary files on the remote host…KEVEPSS 51%analysed10.0CVE-2026-22769Dell RecoverPoint for Virtual Machines hardcoded credential flawDell RecoverPoint for Virtual Machines versions prior to 6.0.3.1 HF1 contain a hardcoded credential vulnerability (CWE-798). An unauthenticated remot…KEVEPSS 13%analysed7.1CVE-2025-14611Gladinet CentreStack and Triofox hardcoded AES key enables file inclusionCentreStack and Triofox before 16.12.10420.56791 use hardcoded values in their AES cryptoscheme, weakening protection for publicly exposed endpoints.…KEVEPSS 53%analysed6.5CVE-2019-6693FortiOS hard-coded key exposes backup file secretsFortiOS configuration backup files are encrypted with a hard-coded cryptographic key, so anyone who obtains a backup can decrypt the sensitive data i…KEVEPSS 5.8%analysed9.8CVE-2025-30406Gladinet CentreStack hardcoded machineKey deserialization RCEGladinet CentreStack through 16.1.10296.56315 (fixed in 16.4.10315.56368) uses a hardcoded machineKey in the portal's web.config, allowing deserializ…KEVEPSS 94%analysed9.8CVE-2024-20439Cisco Smart Licensing Utility hard-coded admin credential allows remote loginCisco Smart Licensing Utility (CSLU) contains an undocumented static credential for an administrative account. An unauthenticated remote attacker who…KEVEPSS 97%analysed

Source: NIST National Vulnerability Database (record CVE-2021-20025), CISA KEV, FIRST EPSS (scores of 2026-10-03). This page is refreshed as NVD updates the record.