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ExploitedIn CISA KEVFix available

CVE-2022-40684

Exploitation confirmed. First attested on 2022-10-11 by CISA-ADP, CISA KEV, GCVE · kevintel, GCVE · shadowserver.

  • Published2022-10-18
  • Fixed in7.2.2 · 7.0.7
  • WeaknessCWE-287

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

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.

Timeline

dates in UTC
  1. 2022-10-11Added to the CISA KEV catalogCISA KEV
  2. 2022-10-11Listed as exploited by GCVEGCVE
  3. 2022-10-11Exploitation first reportedCISA KEV
  4. 2022-10-1814:15CVE publishedNVD
  5. 2023-03-27Exploit-DB entryExploit-DB
  6. 2024-10-2313:27SSVC exploitation set to activeCISA-ADP

Observed activity

isMalicious corpus · updated 2026-11-04 09:37 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-2022-40684?format=txt
  • CSV export: https://api.ismalicious.com/edl/cve/CVE-2022-40684?format=csv
  • TAXII collection of exploited CVEs
  • The EDL and CSV take an API key on the Pro plan.

Versions per branch

NVD
Fortinet FortiOS
BranchAffectedFixed in
7.2≥ 7.2.0, < 7.2.27.2.2
7.0≥ 7.0.0, < 7.0.77.0.7
Fortinet fortiproxy
BranchAffectedFixed in
7.0≥ 7.0.0, < 7.0.77.0.7
7.2= 7.2.0no fix published
Fortinet fortiswitchmanager
BranchAffectedFixed in
7.0= 7.0.0no fix published
7.2= 7.2.0no 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 FortiOS, FortiProxy, FortiSwitchManager
    Affected
    • = FortiOS 7.2.1, 7.2.0, 7.0.6, 7.0.5, 7.0.4, 7.0.3, 7.0.2, 7.0.1, 7.0.0; FortiProxy 7.2.0, 7.0.6, 7.0.5, 7.0.4, 7.0.3, 7.0.2, 7.0.1, 7.0.0; FortiSwitchManager 7.2.0, 7.0.0no fix stated

Source: the CNA record (CVE Program), © The MITRE Corporation,CVE Terms of UseCVE recordupdated 2023-03-27

Fix

  1. Update Fortinet FortiOS to 7.2.2 · 7.0.7
  2. CISA’s required action: Apply updates per vendor instructions.due 2022-11-01

Advisories and patches

Detection

read 2026-11-03 22:42 UTC
Nuclei template
available
ProjectDiscovery
Exploit-DB
EDB-51092EDB-52239
Exploit-DB
Proof-of-concept repositories
20 repositories, unverifiedhorizon3ai/CVE-2022-40684carlosevieira/CVE-2022-40684Filiplain/Fortinet-PoC-Auth-Bypasskljunowsky/CVE-2022-40684-POCsecunnix/CVE-2022-40684
PoC-in-GitHub
Metasploit modules
1 moduleexploit/linux/http/fortinet_authentication_bypass_cve_2022_40684rank: excellentModule metadata: Metasploit Framework, © Rapid7, Inc., BSD-3-Clause.
Metasploit Framework

CISA Known Exploited Vulnerability

Date Added
2022-10-11
Patch Due Date
2022-11-01
Ransomware Use
Known
Required Action
Apply updates per vendor instructions.

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
2022-10-18
Last Modified
2026-08-06
NVD status
Analyzed
GitHub Advisory
GHSA-m3wm-rjvf-m778

Frequently asked questions

What is CVE-2022-40684?

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.

Is CVE-2022-40684 actively exploited?

Yes. CVE-2022-40684 is on the CISA Known Exploited Vulnerabilities (KEV) catalog, meaning it has been confirmed as actively exploited in the wild. CISA requires federal agencies to patch by 2022-11-01.

What is the CVSS score for CVE-2022-40684?

CVE-2022-40684 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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