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CVE-2019-6693

Fortinet FortiOS Use of Hard-Coded Credentials

6.5 MEDIUMActively exploited (CISA KEV)Used in ransomwareEPSS 5.83%
  1. Published21 Nov 2019
  2. Added to CISA KEV25 Jun 2025
  3. Remediation due16 Jul 2025
Actively exploited (CISA KEV)

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.

Added to KEV: 25 Jun 2025Federal remediation due: 16 Jul 2025Used in ransomware

Description

Use of a hard-coded cryptographic key to cipher sensitive data in FortiOS configuration backup file may allow an attacker with access to the backup file to decipher the sensitive data, via knowledge of the hard-coded key. The aforementioned sensitive data includes users' passwords (except the administrator's password), private keys' passphrases and High Availability password (when set).

CVSS 3.1 breakdown

Attack vectorNetwork
Attack complexityLow
Privileges requiredLow
User interactionNone
ScopeUnchanged
ConfidentialityHigh
IntegrityNone
AvailabilityNone
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

Affected products

Fortinet FortiOS≥ 6.0.0 ≤ 6.0.6 · ≤ 5.6.10 · 6.2.0

Remediation

No fixed version is recorded in the NVD data. Check the vendor advisory for the latest guidance.

References

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Frequently asked

Is CVE-2019-6693 being actively exploited?

Yes. CVE-2019-6693 is listed in the CISA Known Exploited Vulnerabilities (KEV) catalog, added 25 Jun 2025. It has been used in ransomware campaigns.

How severe is CVE-2019-6693?

CVE-2019-6693 has a CVSS 3.1 base score of 6.5, rated medium. EPSS estimates a 5.83% probability of exploitation.

Which products are affected by CVE-2019-6693?

Affected products include Fortinet FortiOS.

How do I fix CVE-2019-6693?

Apply the vendor's patch or advisory guidance, then verify no affected versions remain across your devices.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2019-6693 against the real software inventory on every managed device, every day. Rather than a static severity, each match is scored in context: exploit availability, EPSS, the asset's exposure, and business criticality decide where it lands in the queue. Because it is on the CISA KEV list, Secuno flags any affected asset as top-priority automatically. If an affected version is present anywhere across your portfolio, it surfaces automatically with a prioritised remediation path.

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Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.