Vulnerability record · CVE-2022-39954 · published 16 February 2023

CVE-2022-39954: Fortinet fortinac xml external entity (xxe) vulnerability

Fortinet · Fortinac

An improper restriction of xml external entity reference in Fortinet FortiNAC version 9.4.0 through 9.4.1, FortiNAC version 9.2.0 through 9.2.7, FortiNAC version 9.1.0 through 9.1.8, FortiNAC version 8.8.0 through 8.8.11, FortiNAC version 8.7.0 through 8.7.6, FortiNAC version 8.6.0 through 8.6.5, FortiNAC version 8.5.0 through 8.5.4, FortiNAC version 8.3.7 allows attacker to read arbitrary files or trigger a denial of service via specifically crafted XML documents.

9.1 CVSS 3.1 Critical EPSS 0.55% · top 56.4% CWE-611 · XML external entity (XXE)

9.1CVSS 3.1 base score

0.55%EPSS exploitation probability, 30 days

NoNot in CISA KEV

2Affected product versions listed by NVD

2References

17 Jun 2026Last modified by NVD

Description

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H

Affected products

2 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

Fortinac Fortinet

Fortinac F Fortinet

References

Link	Tags
https://fortiguard.com/psirt/FG-IR-22-304	Vendor Advisory
https://fortiguard.com/psirt/FG-IR-22-304	Vendor Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2022-39954), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.