CVE-2019-6693FortinetFirewall and VPNJune 25, 2025

Fortinet FortiOS Use of Hard-Coded Credentials Vulnerability

Medium 6.5Actively exploitedUsed by ransomware

Description

Fortinet FortiOS contains a use of hard-coded credentials vulnerability that could allow an attacker to cipher sensitive data in FortiOS configuration backup file via knowledge of the hard-coded key.

What to do

Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

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Details

Vendor
Fortinet
Product
FortiOS
CVE
CVE-2019-6693
Affected versions
FortiGate 5.6: up to 5.6.9
FortiGate 6.0: up to 6.0.5
FortiGate 6.2: 6.2.0 (from the advisory and NVD; check the exact builds in the official advisory)
CVSS score
6.5
Actively exploited
Yes, listed in the CISA Known Exploited Vulnerabilities catalog
CISA due date
July 16, 2025 (deadline for US federal agencies: a good benchmark for you too)
Source
CISA KEV – original advisory
Published
June 25, 2025

The description and the recommended action are quoted from the public advisory; severity, exploitation status and affected versions are compiled automatically from public sources and may contain errors. The vendor's original advisory prevails: check it before taking action. This information is provided without warranty and does not replace a professional assessment.

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