What is CVE-2023-33299?

CVE-2023-33299 is a critical-severity vulnerability in Fortinet Fortinac, classified under Deserialization of Untrusted Data. CVSS score: 9.6/10. Published 2023-06-23.

How severe is CVE-2023-33299?

Critical severity. CVSS v3 base score is 9.6 out of 10.

Is CVE-2023-33299 known to be exploited?

3 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Deserialization in Fortinet Fortinac

CVE-2023-33299

A deserialization of untrusted data in Fortinet FortiNAC below 7.2.1, below 9.4.3, below 9.2.8 and all earlier versions of 8.x allows attacker to execute unauthorized code or commands via specifically crafted request on inter-server commun…

Vulnerability class: Insecure Deserialization

EPSS: 0.109 (93.5th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.6 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:F/RL:X/RC:C.

Affected products

Fortinet Fortinac — versions 9.4.0, 9.2.0, 9.1.0

Weakness classification (CWE)

CWE-502 — Deserialization of Untrusted Data

Public proof-of-concept exploits

References

https://fortiguard.com/psirt/FG-IR-23-074

Frequently asked questions

What is CVE-2023-33299?: CVE-2023-33299 is a critical-severity vulnerability in Fortinet Fortinac, classified under Deserialization of Untrusted Data. CVSS score: 9.6/10. Published 2023-06-23.
How severe is CVE-2023-33299?: Critical severity. CVSS v3 base score is 9.6 out of 10.
Is CVE-2023-33299 known to be exploited?: 3 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.