Is CVE-2023-33299 actively exploited?

No active exploitation of CVE-2023-33299 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2023-33299 be exploited remotely?

Yes. CVE-2023-33299 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2023-33299?

CVE-2023-33299 has a CVSS score of 9.8 (CRITICAL).

HOME VULNERABILITIESCVE-2023-33299

CRITICAL

CVE-2023-33299

CWE-502Published: June 23, 2023· Updated: Jun 17, 2026

9.8

CVSS v3.1

Official Description

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 communication port. Note FortiNAC versions 8.x will not be fixed.

NVD Source

Technical Analysis

CVE-2023-33299 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 9.8.

From a weakness classification perspective (CWE-502): Insecure deserialization vulnerabilities allow attackers to inject malicious objects during deserialization, potentially enabling remote code execution.