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CVE-2022-39952

92
FAUCET Score

CVE-2022-39952 is a critical vulnerability affecting multiple versions of Fortinet FortiNAC, allowing unauthenticated attackers to execute arbitrary code or commands through specially crafted HTTP requests. With a CVSS score of 9.8 (Critical), this flaw can be exploited remotely with low complexity, leading to complete compromise of confidentiality, integrity, and availability. While not yet listed in KEV, exploit code is publicly available via Metasploit and Nuclei templates, and it has garnered significant community discussion and media coverage, indicating a high likelihood of active exploitation. Organizations are strongly urged to patch immediately.

Impacted Technologies

VendorProductVersion(s)CPE
>= 8.5.0, <= 8.5.4CPE match
cpe:2.3:a:fortinet:fortinac:*:*:*:*:*:*:*:*
>= 8.6.0, <= 8.6.5CPE match
cpe:2.3:a:fortinet:fortinac:*:*:*:*:*:*:*:*
>= 8.7.0, <= 8.7.6CPE match
cpe:2.3:a:fortinet:fortinac:*:*:*:*:*:*:*:*
>= 8.8.0, <= 8.8.11CPE match
cpe:2.3:a:fortinet:fortinac:*:*:*:*:*:*:*:*
>= 9.1.0, <= 9.1.7CPE match
cpe:2.3:a:fortinet:fortinac:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

9.8CRITICAL

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
99.81%
Probability of exploitation in next 30 days
EPSS Percentile
100.0%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
Metasploit: Fortinet FortiNAC keyUpload.jsp arbitrary file write · Feb 16, 2023
Nuclei: CVE-2022-39952 · Feb 21, 2023
This CVE's current EPSS score of 0.9981 is in the 100th percentile among its peer group of 36,862 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.

Media Mentions

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Vendor Patches (1)

fortinetvendor investigatingvia nvd_reference
View patch

References

fortiguard.com / psirt/FG-IR-22-300
Vendor Advisory