What is CVE-2021-43065?

CVE-2021-43065 is a high-severity vulnerability in Fortinet Fortinac, classified under Incorrect Permission Assignment for Critical Resource. CVSS score: 7.8/10. Published 2021-12-09.

How severe is CVE-2021-43065?

High severity. CVSS v3 base score is 7.8 out of 10.

Vulnerability in Fortinet Fortinac

CVE-2021-43065

A incorrect permission assignment for critical resource in Fortinet FortiNAC version 9.2.0, version 9.1.3 and below, version 8.8.9 and below allows attacker to gain higher privileges via the access to sensitive system data.

Published 2021-12-09 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.004 (34.4th percentile), scored 2026-09-29.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 34th percentile — 34.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: 0.000

Affected products

Fortinet Fortinac — versions 9.2.0
Fortinet Fortinac — versions FortiNAC 9.2.0, 9.1.3, 9.1.2, 9.1.1, 9.1.0, 8.8.9, 8.8.8, 8.8.7, 8.8.6, 8.8.5, 8.8.4, 8.8.3, 8.8.2, 8.8.1, 8.8.0

Weakness classification (CWE)

CWE-732 — Incorrect Permission Assignment for Critical Resource

References

fortiguard.com/advisory/FG-IR-21-178 (Vendor Advisory)
github.com/orangecertcc/security-research/security/advisories/GHSA-8wx4-g5p9-34… (Exploit, Third Party Advisory)

Frequently asked questions

What is CVE-2021-43065?: CVE-2021-43065 is a high-severity vulnerability in Fortinet Fortinac, classified under Incorrect Permission Assignment for Critical Resource. CVSS score: 7.8/10. Published 2021-12-09.
How severe is CVE-2021-43065?: High severity. CVSS v3 base score is 7.8 out of 10.