CVE-2022-40684

Exp

An authentication bypass using an alternate path or channel [CWE-288] in Fortinet FortiOS version 7.2.0 through 7.2.1 and 7.0.0 through 7.0.6, FortiProxy version 7.2.0 and version 7.0.0 through 7.0.6 and FortiSwitchManager version 7.2.0 and 7.0.0 allows an unauthenticated atttacker to perform operations on the administrative interface via specially crafted HTTP or HTTPS requests.

Published: 2022-10-18 Last update: 2026-01-14 Assigner: [email protected] Source: [email protected]

NVD Status：Analyzed，CVE State: published

View at NVD, CVE.org, EUVD

Threat Intelligence & Risk Assessment for CVE-2022-40684

KEV EPSS CVSS CWE Exploit-DB Affected

Conclusion & alert: CVE-2022-40684 is rated Critical Active Threat (99.2/100): CVSS Critical severity, with high exploitation likelihood (EPSS 94.43%, 100th percentile). Core evidence: CISA KEV confirms active exploitation (added 2022-10-11) affecting Fortinet / Multiple Products. an authentication bypass (CWE-287) Unauthenticated remote administrative access may be possible. Mandatory action: The CISA remediation deadline has passed—treat as an emergency patch priority.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

CISA KEV Record for CVE-2022-40684

Name: Fortinet Multiple Products Authentication Bypass Vulnerability · CISA KEV detail

Exploit added: 2022-10-11

Action due: 2022-11-01

Required action: Apply updates per vendor instructions.

Public exploit references (Exploit-DB) for CVE-2022-40684

EDB-ID	Source	Kind	Published	Link
52239	exploit_db	edb	2025-04-16	Exploit-DB ↗
51092	exploit_db	edb	2023-03-27	Exploit-DB ↗
—	nvd_ref	exploit_tag		Exploit-DB ↗
—	nvd_ref	exploit_tag		Exploit-DB ↗

Exploit prediction scoring system (EPSS) score for CVE-2022-40684

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

#	Date	Old EPSS score	New EPSS score	Delta (New - Old)
1	2025-12-19	94.46%	94.43%	-0.03%
2	2025-12-18	94.44%	94.46%	+0.02%
3	2025-11-21	—	94.44%	—

Full EPSS history (38 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2022-40684

CVSS metrics for this CVE.

Base score	Version	Severity	Vector	Exploitability	Impact	Score source
9.8	3.1	CRITICAL	`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H` Click to expand Attack vector (AV:N) Could be attacked over the internet or any normal routed network—not just someone sitting at the machine. Attack complexity (AC:L) Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup. Privileges required (PR:N) No account or special rights needed—anonymous or random user is enough. User interaction (UI:N) Nobody has to click “OK” or open a trap file; it can work without a victim helping. Scope (S:U) Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems. Confidentiality (C:H) Serious risk that confidential data gets exposed in a big way. Integrity (I:H) They could widely tamper with or forge data—trust in the data is badly hurt. Availability (A:H) Could take the service down hard or make it unusable for people who depend on it.	3.9	5.9	[email protected]
9.8	3.1	CRITICAL	`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H` Click to expand Attack vector (AV:N) Could be attacked over the internet or any normal routed network—not just someone sitting at the machine. Attack complexity (AC:L) Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup. Privileges required (PR:N) No account or special rights needed—anonymous or random user is enough. User interaction (UI:N) Nobody has to click “OK” or open a trap file; it can work without a victim helping. Scope (S:U) Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems. Confidentiality (C:H) Serious risk that confidential data gets exposed in a big way. Integrity (I:H) They could widely tamper with or forge data—trust in the data is badly hurt. Availability (A:H) Could take the service down hard or make it unusable for people who depend on it.	3.9	5.9	[email protected]

Weakness enumeration for CVE-2022-40684

CWE-287 MITRE ↗

Affected software / configurations for CVE-2022-40684

Vendor	Product	Version	Raw CPE
fortinet	fortiproxy	>= 7.0.0, < 7.0.7	cpe:2.3:a:fortinet:fortiproxy::::::::
fortinet	fortiproxy	7.2.0	cpe:2.3:a:fortinet:fortiproxy:7.2.0:::::::*
fortinet	fortiswitchmanager	7.0.0	cpe:2.3:a:fortinet:fortiswitchmanager:7.0.0:::::::*
fortinet	fortiswitchmanager	7.2.0	cpe:2.3:a:fortinet:fortiswitchmanager:7.2.0:::::::*
fortinet	fortios	>= 7.0.0, < 7.0.7	cpe:2.3:o:fortinet:fortios::::::::
fortinet	fortios	>= 7.2.0, < 7.2.2	cpe:2.3:o:fortinet:fortios::::::::

References for CVE-2022-40684

URL	Tags
http://packetstormsecurity.com/files/169431/Fortinet-FortiOS-FortiProxy-FortiSwitchManager-Authentication-Bypass.html	Exploit Third Party Advisory VDB Entry
http://packetstormsecurity.com/files/171515/Fortinet-7.2.1-Authentication-Bypass.html	Exploit Third Party Advisory VDB Entry
https://fortiguard.com/psirt/FG-IR-22-377	Mitigation Vendor Advisory
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2022-40684	US Government Resource

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