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% (57th 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% (57th 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% (57th 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:*:*:*:*:*:*:*:*

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