How severe is CVE-2021-22125?

CVE-2021-22125 has a CVSS 3.x base score of 6.3, rated medium severity. It is exploitable over an adjacent network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability low.

Is CVE-2021-22125 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (71st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-22125?

CVE-2021-22125 affects Fortinet Fortisandbox. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-22125?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2021-22125 published?

CVE-2021-22125 was published on 2021-07-20 and last updated on 2026-06-17.

CVE-2021-22125

CVE-2021-22125 is a medium-severity vulnerability in Fortinet Fortisandbox with a CVSS 3.x base score of 6.3. 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-78.

Key facts

Severity: Medium (CVSS 3.x base score 6.3)
CVSS v2: 9.0
EPSS exploit prediction: 1% (71st percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-78
Affected product: Fortinet Fortisandbox
Published: 2021-07-20
Last modified: 2026-06-17

Description

An instance of improper neutralization of special elements in the sniffer module of FortiSandbox before 3.2.2 may allow an authenticated administrator to execute commands on the underlying system's shell via altering the content of its configuration file.

Frequently asked questions

What is CVE-2021-22125?: An instance of improper neutralization of special elements in the sniffer module of FortiSandbox before 3.2.2 may allow an authenticated administrator to execute commands on the underlying system's shell via altering the content of its configuration file.
How severe is CVE-2021-22125?: CVE-2021-22125 has a CVSS 3.x base score of 6.3, rated medium severity. It is exploitable over an adjacent network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability low.
Is CVE-2021-22125 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (71st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-22125?: CVE-2021-22125 affects Fortinet Fortisandbox. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-22125?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2021-22125 published?: CVE-2021-22125 was published on 2021-07-20 and last updated on 2026-06-17.

References

https://fortiguard.com/advisory/FG-IR-21-005

Affected products (1)

cpe:2.3:a:fortinet:fortisandbox:*:*:*:*:*:*:*:*

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