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

Vulnerability class: Insecure Deserialization

Published · last modified .

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.243 (97.8th percentile), scored .

Moderate probability of exploitation in the next 30 days — watch for active exploitation reports. 98th percentile — 97.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2023-33299: held from 0.243 to 0.243.

EPSS over last 30 days · oldest: 0.243 · newest: 0.243 · change: 0.000

Affected products

Weakness classification (CWE)

Public proof-of-concept exploits

References

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: 9.8/10. Published 2023-06-23.
How severe is CVE-2023-33299?
Critical severity. CVSS v3 base score is 9.8 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.