How severe is CVE-2021-20030?

CVE-2021-20030 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2021-20030 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (52nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-20030?

CVE-2021-20030 affects Sonicwall Global Management System. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-20030?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2021-20030 published?

CVE-2021-20030 was published on 2022-10-13 and last updated on 2026-06-17.

CVE-2021-20030

CVE-2021-20030 is a high-severity vulnerability in Sonicwall Global Management System with a CVSS 3.x base score of 7.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-22.

Key facts

Severity: High (CVSS 3.x base score 7.5)
EPSS exploit prediction: 1% (52nd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-22
Affected product: Sonicwall Global Management System
Published: 2022-10-13
Last modified: 2026-06-17

Description

SonicWall GMS is vulnerable to file path manipulation resulting that an unauthenticated attacker can gain access to web directory containing application's binaries and configuration files.

Frequently asked questions

What is CVE-2021-20030?: SonicWall GMS is vulnerable to file path manipulation resulting that an unauthenticated attacker can gain access to web directory containing application's binaries and configuration files.
How severe is CVE-2021-20030?: CVE-2021-20030 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2021-20030 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (52nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-20030?: CVE-2021-20030 affects Sonicwall Global Management System. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-20030?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2021-20030 published?: CVE-2021-20030 was published on 2022-10-13 and last updated on 2026-06-17.

References

https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2022-0021

Affected products (1)

cpe:2.3:a:sonicwall:global_management_system:*:*:*:*:*:*:*:*

More vulnerabilities in Sonicwall Global Management System

CVE-2016-2396 — Critical (CVSS 9.9): The GMS ViewPoint (GMSVP) web application in Dell SonicWALL GMS, Analyzer, and UMA EM5000 7.2, 8.0, and 8.1 before…
CVE-2023-34137 — Critical (CVSS 9.8): SonicWall GMS and Analytics CAS Web Services application use static values for authentication without proper checks…
CVE-2023-34136 — Critical (CVSS 9.8): Vulnerability in SonicWall GMS and Analytics allows unauthenticated attacker to upload files to a restricted location…
CVE-2023-34132 — Critical (CVSS 9.8): Use of password hash instead of password for authentication vulnerability in SonicWall GMS and Analytics allows…
CVE-2023-34130 — Critical (CVSS 9.8): SonicWall GMS and Analytics use outdated Tiny Encryption Algorithm (TEA) with a hardcoded key to encrypt sensitive…
CVE-2023-34128 — Critical (CVSS 9.8): Tomcat application credentials are hardcoded in SonicWall GMS and Analytics configuration file. This issue affects GMS:…

All CVEs affecting Sonicwall Global Management System →

Other CWE-22 (Path Traversal) vulnerabilities

CVE-2026-48282 — Critical (CVSS 10.0): ColdFusion versions 2025.9, 2023.20 and earlier are affected by an Improper Limitation of a Pathname to a Restricted…
CVE-2026-54917 — Critical (CVSS 10.0): SeaweedFS is a distributed storage system for object storage (S3), file systems, and Iceberg tables. Prior to 4.30, the…
CVE-2026-11429 — Critical (CVSS 10.0): Two endpoints in the Vault Service ScriptsController, shared by Altium Enterprise Server and Altium 365, accept file…
CVE-2026-34909 — Critical (CVSS 10.0): A malicious actor with access to the network could exploit a Path Traversal vulnerability found in UniFi OS devices to…
CVE-2026-7411 — Critical (CVSS 10.0): In Eclipse BaSyx Java Server SDK versions prior to 2.0.0-milestone-10, inadequate path normalization in the Submodel…
CVE-2026-36767 — Critical (CVSS 10.0): A path traversal vulnerability in the /content/images/add endpoint of shopizer v3.2.5 allows attackers write arbitrary…

Browse all CWE-22 (Path Traversal) vulnerabilities →