How severe is CVE-2022-27489?

CVE-2022-27489 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-2022-27489 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (72nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2022-27489?

CVE-2022-27489 primarily affects Fortinet Fortiextender Firmware. In total, 7 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2022-27489?

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-2022-27489 published?

CVE-2022-27489 was published on 2023-02-16 and last updated on 2026-06-17.

CVE-2022-27489

CVE-2022-27489 is a high-severity vulnerability in Fortinet Fortiextender Firmware 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: 1% (72nd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-78
Affected product: Fortinet Fortiextender Firmware
Published: 2023-02-16
Last modified: 2026-06-17

Description

A improper neutralization of special elements used in an os command ('os command injection') in Fortinet FortiExtender 7.0.0 through 7.0.3, 5.3.2, 4.2.4 and below allows attacker to execute unauthorized code or commands via crafted HTTP requests.

Frequently asked questions

What is CVE-2022-27489?: A improper neutralization of special elements used in an os command ('os command injection') in Fortinet FortiExtender 7.0.0 through 7.0.3, 5.3.2, 4.2.4 and below allows attacker to execute unauthorized code or commands via crafted HTTP requests.
How severe is CVE-2022-27489?: CVE-2022-27489 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-2022-27489 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (72nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2022-27489?: CVE-2022-27489 primarily affects Fortinet Fortiextender Firmware. In total, 7 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2022-27489?: 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-2022-27489 published?: CVE-2022-27489 was published on 2023-02-16 and last updated on 2026-06-17.

References

https://fortiguard.com/psirt/FG-IR-22-048

Affected products (7)

cpe:2.3:o:fortinet:fortiextender_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:fortinet:fortiextender_firmware:3.0.0:*:*:*:*:*:*:*
cpe:2.3:o:fortinet:fortiextender_firmware:3.0.1:*:*:*:*:*:*:*
cpe:2.3:o:fortinet:fortiextender_firmware:3.0.2:*:*:*:*:*:*:*
cpe:2.3:o:fortinet:fortiextender_firmware:3.1.0:*:*:*:*:*:*:*
cpe:2.3:o:fortinet:fortiextender_firmware:3.1.1:*:*:*:*:*:*:*
cpe:2.3:o:fortinet:fortiextender_firmware:5.3.2:*:*:*:*:*:*:*

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