How severe is CVE-2021-36168?

CVE-2021-36168 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2021-36168 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (62nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-36168?

CVE-2021-36168 affects Fortinet Fortiportal. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-36168?

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

When was CVE-2021-36168 published?

CVE-2021-36168 was published on 2021-08-04 and last updated on 2026-06-17.

CVE-2021-36168

CVE-2021-36168 is a medium-severity vulnerability in Fortinet Fortiportal with a CVSS 3.x base score of 6.5. 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: Medium (CVSS 3.x base score 6.5)
CVSS v2: 4.0
EPSS exploit prediction: 1% (62nd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-22
Affected product: Fortinet Fortiportal
Published: 2021-08-04
Last modified: 2026-06-17

Description

A Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') in Fortinet FortiPortal 6.x before 6.0.5, FortiPortal 5.3.x before 5.3.6 and any FortiPortal before 6.2.5 allows authenticated attacker to disclosure information via crafted GET request with malicious parameter values.

Frequently asked questions

What is CVE-2021-36168?: A Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') in Fortinet FortiPortal 6.x before 6.0.5, FortiPortal 5.3.x before 5.3.6 and any FortiPortal before 6.2.5 allows authenticated attacker to disclosure information via crafted GET request with malicious parameter values.
How severe is CVE-2021-36168?: CVE-2021-36168 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2021-36168 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (62nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-36168?: CVE-2021-36168 affects Fortinet Fortiportal. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-36168?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2021-36168 published?: CVE-2021-36168 was published on 2021-08-04 and last updated on 2026-06-17.

References

https://fortiguard.com/advisory/FG-IR-21-085

Affected products (1)

cpe:2.3:a:fortinet:fortiportal:*:*:*:*:*:*:*:*

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