How severe is CVE-2022-39951?

CVE-2022-39951 has a CVSS 3.x base score of 7.2, rated high severity. It is exploitable over network with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2022-39951 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (75th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2022-39951?

CVE-2022-39951 affects Fortinet Fortiweb. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2022-39951?

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-2022-39951 published?

CVE-2022-39951 was published on 2023-03-07 and last updated on 2026-06-17.

CVE-2022-39951

CVE-2022-39951 is a high-severity vulnerability in Fortinet Fortiweb with a CVSS 3.x base score of 7.2. 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: High (CVSS 3.x base score 7.2)
EPSS exploit prediction: 2% (75th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-78
Affected product: Fortinet Fortiweb
Published: 2023-03-07
Last modified: 2026-06-17

Description

A improper neutralization of special elements used in an os command ('os command injection') in Fortinet FortiWeb version 7.0.0 through 7.0.2, FortiWeb version 6.3.6 through 6.3.20, FortiWeb 6.4 all versions allows attacker to execute unauthorized code or commands via specifically crafted HTTP requests.

Frequently asked questions

What is CVE-2022-39951?: A improper neutralization of special elements used in an os command ('os command injection') in Fortinet FortiWeb version 7.0.0 through 7.0.2, FortiWeb version 6.3.6 through 6.3.20, FortiWeb 6.4 all versions allows attacker to execute unauthorized code or commands via specifically crafted HTTP requests.
How severe is CVE-2022-39951?: CVE-2022-39951 has a CVSS 3.x base score of 7.2, rated high severity. It is exploitable over network with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2022-39951 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (75th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2022-39951?: CVE-2022-39951 affects Fortinet Fortiweb. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2022-39951?: 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-2022-39951 published?: CVE-2022-39951 was published on 2023-03-07 and last updated on 2026-06-17.

References

https://fortiguard.com/psirt/FG-IR-22-254

Affected products (1)

cpe:2.3:a:fortinet:fortiweb:*:*:*:*:*:*:*:*

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