How severe is CVE-2022-23447?

CVE-2022-23447 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-2022-23447 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (54th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2022-23447?

CVE-2022-23447 primarily affects Fortinet Fortiextender Firmware. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2022-23447?

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-2022-23447 published?

CVE-2022-23447 was published on 2023-07-11 and last updated on 2026-06-17.

CVE-2022-23447

CVE-2022-23447 is a high-severity vulnerability in Fortinet Fortiextender Firmware 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% (54th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-22
Affected product: Fortinet Fortiextender Firmware
Published: 2023-07-11
Last modified: 2026-06-17

Description

An improper limitation of a pathname to a restricted directory ('Path Traversal') vulnerability [CWE-22] in FortiExtender management interface 7.0.0 through 7.0.3, 4.2.0 through 4.2.4, 4.1.1 through 4.1.8, 4.0.0 through 4.0.2, 3.3.0 through 3.3.2, 3.2.1 through 3.2.3, 5.3 all versions may allow an unauthenticated and remote attacker to retrieve arbitrary files from the underlying filesystem via specially crafted web requests.

Frequently asked questions

What is CVE-2022-23447?: An improper limitation of a pathname to a restricted directory ('Path Traversal') vulnerability [CWE-22] in FortiExtender management interface 7.0.0 through 7.0.3, 4.2.0 through 4.2.4, 4.1.1 through 4.1.8, 4.0.0 through 4.0.2, 3.3.0 through 3.3.2, 3.2.1 through 3.2.3, 5.3 all versions may allow an unauthenticated and remote attacker to retrieve arbitrary files from the underlying filesystem via specially crafted web requests.
How severe is CVE-2022-23447?: CVE-2022-23447 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-2022-23447 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (54th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2022-23447?: CVE-2022-23447 primarily affects Fortinet Fortiextender Firmware. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2022-23447?: 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-2022-23447 published?: CVE-2022-23447 was published on 2023-07-11 and last updated on 2026-06-17.

References

https://fortiguard.com/psirt/FG-IR-22-039

Affected products (2)

cpe:2.3:o:fortinet:fortiextender_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:fortinet:fortiextender_firmware:5.3.2:*:*:*:*:*:*:*

More vulnerabilities in Fortinet Fortiextender Firmware

CVE-2024-23663 — High (CVSS 8.8): An improper access control in Fortinet FortiExtender 4.1.1 - 4.1.9, 4.2.0 - 4.2.6, 5.3.2, 7.0.0 - 7.0.4, 7.2.0 - 7.2.4…
CVE-2021-41016 — High (CVSS 7.8): A improper neutralization of special elements used in a command ('command injection') in Fortinet FortiExtender version…
CVE-2025-64153 — High (CVSS 7.2): A improper neutralization of special elements used in an os command ('os command injection') in Fortinet FortiExtender…
CVE-2022-27489 — High (CVSS 7.2): A improper neutralization of special elements used in an os command ('os command injection') in Fortinet FortiExtender…
CVE-2025-46776 — Medium (CVSS 6.4): A buffer copy without checking size of input ('classic buffer overflow') vulnerability in Fortinet FortiExtender 7.6.0…
CVE-2025-46775 — Medium (CVSS 5.5): A debug messages revealing unnecessary information vulnerability in Fortinet FortiExtender 7.6.0 through 7.6.1,…

All CVEs affecting Fortinet Fortiextender Firmware →

Other CWE-22 (Path Traversal) vulnerabilities

CVE-2026-76606 — Critical (CVSS 10.0): Joomla Extension - fabrikar.com - Path Traversal via image element in Fabrik < 4.7.3 - ???.
CVE-2026-18051 — Critical (CVSS 10.0): The W3 Total Cache WordPress plugin before 2.10.5 does not properly validate the request path it uses to build cache…
CVE-2026-74764 — Critical (CVSS 10.0): Pandora contains a path traversal vulnerability in its TAR archive extraction functionality. When processing a…
CVE-2026-16940 — Critical (CVSS 10.0): The Custom Fields WordPress plugin before 1.5.1 does not validate a user-supplied file path before deletion, allowing…
CVE-2026-67429 — Critical (CVSS 10.0): Flyto2 Core is an execution kernel for automation and AI-agent workflows. Prior to 2.26.6, image.download and related…
CVE-2026-59555 — Critical (CVSS 10.0): Unauthenticated Arbitrary File Deletion in Participants Database <= 2.7.8.3 versions.

Browse all CWE-22 (Path Traversal) vulnerabilities →