Vulnerability record · CVE-2016-4573 · published 9 September 2016

CVE-2016-4573: Fortinet fortiswitch permissions and access controls vulnerability

Fortinet · Fortiswitch

Fortinet FortiSwitch FSW-108D-POE, FSW-124D, FSW-124D-POE, FSW-224D-POE, FSW-224D-FPOE, FSW-248D-POE, FSW-248D-FPOE, FSW-424D, FSW-424D-POE, FSW-424D-FPOE, FSW-448D, FSW-448D-POE, FSW-448D-FPOE, FSW-524D, FSW-524D-FPOE, FSW-548D, FSW-548D-FPOE, FSW-1024D, FSW-1048D, FSW-3032D, and FSW-R-112D-POE models, when in FortiLink managed mode and upgraded to 3.4.1, might allow remote attackers to bypass authentication and gain administrative access via an empty password for the rest_admin account.

9.8 CVSS 3.0 Critical EPSS 4.6% · top 8.7% CWE-264 · Permissions and access controls

9.8CVSS 3.0 base score, v2 10.0

4.6%EPSS exploitation probability, 30 days

NoNot in CISA KEV

1Affected product versions listed by NVD

6References

17 Jun 2026Last modified by NVD

Description

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

Fortiswitch Fortinet

References

Link	Tags
http://fortiguard.com/advisory/fortiswitch-rest-admin-account-exposed-under-specific-conditions	Vendor Advisory
http://www.securityfocus.com/bid/92450
https://www.themissinglink.com.au/security/advisories/cve-2016-4573	Third Party Advisory
http://fortiguard.com/advisory/fortiswitch-rest-admin-account-exposed-under-specific-conditions	Vendor Advisory
http://www.securityfocus.com/bid/92450
https://www.themissinglink.com.au/security/advisories/cve-2016-4573	Third Party Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2016-4573), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.