CVE-2022-40684 (GCVE-0-2022-40684)

Vulnerability from cvelistv5 – Published: 2022-10-18 00:00 – Updated: 2026-08-06 03:55
VLAI CISA Previdian
Summary
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.
Severity
9.8 (Critical)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:F/RL:U/RC:C
SSVC
Exploitation: active Automatable: yes Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2022-10-11 00:00 UTC
CWE
  • Execute unauthorized code or commands
  • CWE-287 - Improper Authentication
Assigner
References
Impacted products
Vendor Product Version
Fortinet 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, 7.0.0
Create a notification for this product.
CISA
Known Exploited Vulnerability - GCVE BCP-07 Compliant
KEV entry ID: 4801054e-670b-4b43-b174-446ae09120ce

Vulnerability ID: CVE-2022-40684

Status: Confirmed

Status Updated: 2022-10-11 02:00 CEST

Exploited: Yes

Timestamps
First Seen: 2022-10-11
Asserted: 2022-10-11
Scope
Notes: Fortinet Multiple Products Authentication Bypass Vulnerability | Affected: Fortinet / Multiple Products | Description: Fortinet FortiOS, FortiProxy, and FortiSwitchManager contain an authentication bypass vulnerability that could allow an unauthenticated attacker to perform operations on the administrative interface via specially crafted HTTP or HTTPS requests. | Required action: Apply updates per vendor instructions. | Due date: 2022-11-01 | Known ransomware campaign use (KEV): Known | Notes (KEV): https://www.fortiguard.com/psirt/FG-IR-22-377; https://nvd.nist.gov/vuln/detail/CVE-2022-40684
Evidence

Type: Vendor Report

Signal: Successful Exploitation

Confidence: 80%

Source: cisa-kev

Details
Cwes CWE-288
Feed CISA Known Exploited Vulnerabilities Catalog
Product Multiple Products
Due Date 2022-11-01
Date Added 2022-10-11
Vendorproject Fortinet
Vulnerabilityname Fortinet Multiple Products Authentication Bypass Vulnerability
Knownransomwarecampaignuse Known
References
Created: 2026-10-02 08:09 CEST | Updated: 2026-10-02 08:09 CEST
Previdian
Known Exploited Vulnerability - GCVE BCP-07 Compliant
KEV entry ID: 1dadbb92-5dba-4739-bcbc-7645f5f4a2af

Vulnerability ID: CVE-2022-40684

Status: Confirmed

Status Updated: 2022-10-11 02:00 CEST

Exploited: Yes

Timestamps
First Seen: 2022-10-11
Asserted: 2022-10-11
Scope
Notes: 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,... | Affected: Fortinet / Fortinet FortiOS, FortiProxy, FortiSwitchManager | CVSS: 9.8 (CRITICAL) | EPSS: 0.99984 | Used in malware: yes | Not yet in CISA KEV: False
Evidence

Type: Public Report

Signal: Confirmed Compromise

Confidence: 70%

Source: previdian

Details
Feed Previdian (previdian.com)
Title 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,...
Cve Id CVE-2022-40684
Vendor Fortinet
Ghsa Id None
Product Fortinet FortiOS, FortiProxy, FortiSwitchManager
Added Date 2022-10-11T00:00:00.000Z
Cvss Score 9.8
Epss Score 0.99984
Previous Ids
Cvss Severity CRITICAL
Virtual Patch False
Cvss Estimated False
Epss Percentile 0.99983
Used In Malware yes
Vulnerability Id CVE-2022-40684
Ahead Of Cisa Kev None
Not Yet In Cisa Kev False
References
Created: 2026-10-02 09:11 CEST | Updated: 2026-10-02 09:11 CEST
Show details on NVD website
To clipboard 

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                "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:F/RL:U/RC:C",
                "version": "3.1"
              }
            }
          ],
          "problemTypes": [
            {
              "descriptions": [
                {
                  "description": "Execute unauthorized code or commands",
                  "lang": "en",
                  "type": "text"
                }
              ]
            }
          ],
          "providerMetadata": {
            "dateUpdated": "2023-03-27T00:00:00.000Z",
            "orgId": "6abe59d8-c742-4dff-8ce8-9b0ca1073da8",
            "shortName": "fortinet"
          },
          "references": [
            {
              "url": "https://fortiguard.com/psirt/FG-IR-22-377"
            },
            {
              "url": "http://packetstormsecurity.com/files/169431/Fortinet-FortiOS-FortiProxy-FortiSwitchManager-Authentication-Bypass.html"
            },
            {
              "url": "http://packetstormsecurity.com/files/171515/Fortinet-7.2.1-Authentication-Bypass.html"
            }
          ]
        }
      },
      "cveMetadata": {
        "assignerOrgId": "6abe59d8-c742-4dff-8ce8-9b0ca1073da8",
        "assignerShortName": "fortinet",
        "cveId": "CVE-2022-40684",
        "datePublished": "2022-10-18T00:00:00.000Z",
        "dateReserved": "2022-09-14T00:00:00.000Z",
        "dateUpdated": "2026-08-06T03:55:36.678Z",
        "state": "PUBLISHED"
      },
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}



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Taxonomy of the tags.





Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.