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CVE-2022-40677

26
FAUCET Score

CVE-2022-40677 is an argument injection vulnerability affecting multiple versions of Fortinet FortiNAC, allowing authenticated attackers to execute arbitrary code or commands through specially crafted input parameters. With a CVSS score of 8.8 (High), this vulnerability poses a significant risk due to its network-based attack vector and high impact on confidentiality, integrity, and availability. While no public exploit code or active exploitation has been observed, and community discussion is minimal, organizations using affected FortiNAC versions should prioritize patching to mitigate potential threats.

Impacted Technologies

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

CVSS Data

CVSS version used by this source: 3.1

7.2HIGH

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
HIGH
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
1.2
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.77%
Probability of exploitation in next 30 days
EPSS Percentile
51.9%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0077 is in the 45th percentile among its peer group of 17,844 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.3 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (1)

fortinetpatch availablevia nvd_reference
View patch

References

fortiguard.com / psirt/FG-IR-22-280
PatchVendor Advisory