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CVE-2022-40684

99
FAUCET Score

CVE-2022-40684 is a critical authentication bypass vulnerability affecting Fortinet FortiOS, FortiProxy, and FortiSwitchManager versions. This flaw allows an unauthenticated attacker to perform operations on the administrative interface via specially crafted HTTP/HTTPS requests. With a CVSS score of 9.8 (Critical), it presents a severe risk due to its network-based attack vector, low attack complexity, and high potential for complete compromise of confidentiality, integrity, and availability. The vulnerability is actively exploited in the wild, including in known ransomware campaigns, with public exploit code readily available in Metasploit and ExploitDB, and has garnered significant community discussion and media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
>= 7.0.0, < 7.0.7CPE matchmatch criteria
cpe:2.3:a:fortinet:fortiproxy:*:*:*:*:*:*:*:*
7.2.0CPE matchmatch criteria
cpe:2.3:a:fortinet:fortiproxy:7.2.0:*:*:*:*:*:*:*
7.0.0CPE matchmatch criteria
cpe:2.3:a:fortinet:fortiswitchmanager:7.0.0:*:*:*:*:*:*:*
7.2.0CPE matchmatch criteria
cpe:2.3:a:fortinet:fortiswitchmanager:7.2.0:*:*:*:*:*:*:*
>= 7.0.0, < 7.0.7CPE matchmatch criteria
cpe:2.3:o:fortinet:fortios:*:*:*:*:*:*:*:*

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
99.98%
Probability of exploitation in next 30 days
EPSS Percentile
100.0%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
Added to KEV · Oct 11, 2022
Metasploit: Fortinet FortiOS, FortiProxy, and FortiSwitchManager authentication bypass. · Oct 10, 2022
Nuclei: CVE-2022-40684 · Oct 14, 2022
ExploitDB: EDB-52239 · Apr 16, 2025
This CVE's current EPSS score of 0.9998 is in the 100th percentile among its peer group of 36,833 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)

fortinetworkaround availablevia nvd_reference
View patch

References

cisa.gov / known-exploited-vulnerabilities-catalog
US Government Resource
packetstormsecurity.com / files/169431/Fortinet-FortiOS-FortiProxy-FortiSwitchManager-Authentication-Bypass.html
ExploitThird Party AdvisoryVDB Entry
packetstormsecurity.com / files/171515/Fortinet-7.2.1-Authentication-Bypass.html
ExploitThird Party AdvisoryVDB Entry
fortiguard.com / psirt/FG-IR-22-377
MitigationVendor Advisory