What is CVE-2021-36167?

CVE-2021-36167 is a medium-severity vulnerability in Fortinet Forticlient. CVSS score: 4.3/10. Published 2021-12-09.

How severe is CVE-2021-36167?

Medium severity. CVSS v3 base score is 4.3 out of 10.

Vulnerability in Fortinet Forticlient

CVE-2021-36167

An improper authorization vulnerabiltiy [CWE-285] in FortiClient Windows versions 7.0.0 and 6.4.6 and below and 6.2.8 and below may allow an unauthenticated attacker to bypass the webfilter control via modifying the session-id paramater.

EPSS: 0.006 (43.0th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:L.

Affected products

Fortinet Forticlient — versions 6.2.7, 7.0.0
Fortinet Forticlientwindows — versions FortiClientWindows 7.0.0, 6.4.6, 6.4.5, 6.4.4, 6.4.3, 6.4.2, 6.4.1, 6.4.0, 6.2.8, 6.2.7, 6.2.6, 6.2.5, 6.2.4, 6.2.3, 6.2.2, 6.2.1, 6.2.0

References

psirt@fortinet.com (x_refsource_CONFIRM, Patch, Vendor Advisory)

Frequently asked questions

What is CVE-2021-36167?: CVE-2021-36167 is a medium-severity vulnerability in Fortinet Forticlient. CVSS score: 4.3/10. Published 2021-12-09.
How severe is CVE-2021-36167?: Medium severity. CVSS v3 base score is 4.3 out of 10.