How severe is CVE-2022-40684?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Is CVE-2022-40684 known to be exploited?

Yes. CVE-2022-40684 is listed in the CISA Known Exploited Vulnerabilities catalog (added 2022-10-11), indicating it is being actively exploited. 100 public proof-of-concept repositories are indexed.

Vulnerability in Fortinet Fortios, Fortiproxy, Fortiswitchmanager

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 an…

EPSS: 0.944 (100.0th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: 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.

Affected products

Fortinet Fortios, Fortiproxy, Fortiswitchmanager — versions 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

CISA KEV (Known Exploited Vulnerabilities)

This CVE is on the CISA KEV catalog, added on 2022-10-11. CISA KEV inclusion means CISA has confirmed in-the-wild exploitation; US federal agencies are required to remediate within a published due date.

BOD 22-01 due date: 2022-11-01.

Required action: Apply updates per vendor instructions.

Known ransomware campaign use: yes.

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2022-40684?: CVE-2022-40684 is a critical-severity vulnerability in Fortinet Fortios, Fortiproxy, Fortiswitchmanager. CVSS score: 9.8/10. Published 2022-10-18.
How severe is CVE-2022-40684?: Critical severity. CVSS v3 base score is 9.8 out of 10.
Is CVE-2022-40684 known to be exploited?: Yes. CVE-2022-40684 is listed in the CISA Known Exploited Vulnerabilities catalog (added 2022-10-11), indicating it is being actively exploited. 100 public proof-of-concept repositories are indexed.