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ExploitedNot in CISA KEV yetFix available

CVE-2022-39952

Exploitation confirmed. First attested on 2023-10-14 by GCVE · kevintel, GCVE · shadowserver.

  • Published2023-02-16
  • Fixed in9.4.1 · 9.2.6 · 9.1.8
  • WeaknessCWE-668 · CWE-73

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

A external control of file name or path in Fortinet FortiNAC versions 9.4.0, 9.2.0 through 9.2.5, 9.1.0 through 9.1.7, 8.8.0 through 8.8.11, 8.7.0 through 8.7.6, 8.6.0 through 8.6.5, 8.5.0 through 8.5.4, 8.3.7 may allow an unauthenticated attacker to execute unauthorized code or commands via specifically crafted HTTP request.

Timeline

dates in UTC
  1. 2023-02-1619:15CVE publishedNVD
  2. 2023-10-1414:57Listed as exploited by GCVEGCVE
  3. 2023-10-1414:57Exploitation first reportedGCVE

Observed activity

isMalicious corpus · updated 2026-11-03 21:37 UTC
Indicators tagged with this CVE, per day0 indicators over 7 days
Block these indicators
  • Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2022-39952?format=txt
  • CSV export: https://api.ismalicious.com/edl/cve/CVE-2022-39952?format=csv
  • TAXII collection of exploited CVEs
  • The EDL and CSV take an API key on the Pro plan.

Versions per branch

NVD
Fortinet fortinac
BranchAffectedFixed in
9.4≥ 9.4.0, < 9.4.19.4.1
9.2≥ 9.2.0, < 9.2.69.2.6
9.1≥ 9.1.0, < 9.1.89.1.8
8.x≥ 8.3.7, ≤ 8.8.9no fix published

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Products declared by the CNA1 product

As fortinet, the CNA that assigned this CVE, declared them in the CVE record; versions as written.

  • Fortinet FortiNACother versions: not affected
    Affected
    • = 9.4.0no fix stated
    • ≥ 9.2.0, ≤ 9.2.5no fix statedsemver
    • ≥ 9.1.0, ≤ 9.1.7no fix statedsemver
    • ≥ 8.8.0, ≤ 8.8.11no fix statedsemver
    • ≥ 8.7.0, ≤ 8.7.6no fix statedsemver
    • ≥ 8.6.0, ≤ 8.6.5no fix statedsemver
    • ≥ 8.5.0, ≤ 8.5.4no fix statedsemver
    • = 8.3.7no fix stated

Source: the CNA record (CVE Program), © The MITRE Corporation,CVE Terms of UseCVE recordupdated 2023-02-16

Fix

  1. Update Fortinet fortinac to 9.4.1 · 9.2.6 · 9.1.8

Advisories and patches

Detection

read 2026-11-03 22:42 UTC
Nuclei template
available
ProjectDiscovery
Exploit-DB
no entry
Exploit-DB
Proof-of-concept repositories
4 repositories, unverifiedhorizon3ai/CVE-2022-39952shiyeshu/CVE-2022-39952_webshellChocapikk/CVE-2022-39952dkstar11q/CVE-2022-39952-better
PoC-in-GitHub
Metasploit modules
1 moduleexploit/linux/http/fortinac_keyupload_file_writerank: excellentModule metadata: Metasploit Framework, © Rapid7, Inc., BSD-3-Clause.
Metasploit Framework

Sources

Identifiers

Technical details

CVSS v3 Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Published
2023-02-16
Last Modified
2026-06-17
NVD status
Modified
GitHub Advisory
GHSA-4wjq-4wff-qw9c

Frequently asked questions

What is CVE-2022-39952?

A external control of file name or path in Fortinet FortiNAC versions 9.4.0, 9.2.0 through 9.2.5, 9.1.0 through 9.1.7, 8.8.0 through 8.8.11, 8.7.0 through 8.7.6, 8.6.0 through 8.6.5, 8.5.0 through 8.5.4, 8.3.7 may allow an unauthenticated attacker to execute unauthorized code or commands via specifically crafted HTTP request.

Is CVE-2022-39952 actively exploited?

Active exploitation of CVE-2022-39952 has not been confirmed. Its EPSS score was 99.8% on 2026-11-03, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2022-39952?

CVE-2022-39952 has a CVSS v3 base score of 9.8 (CRITICAL severity), with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

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