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CVE-2019-6693: Fortinet FortiOS Use of Hard-Coded Credentials Vulnerability

criticalknown exploitedpublic exploitCVE-2019-6693
Actively exploited. At least one CVE in this advisory is listed in the CISA Known Exploited Vulnerabilities catalog — exploitation has been observed in the wild. Treat remediation as urgent.
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.

CSIRTS triage

vendor: Fortinetproduct: FortiOSOther
What
This vulnerability involves the use of hard-coded credentials in FortiOS.
Who is affected
Users of Fortinet FortiOS are affected by this vulnerability.
Urgency
Remediation is critical due to active exploitation and the severity of the issue.
Action
Review and secure FortiOS configurations to mitigate this vulnerability.

AI-assisted analysis generated from the source advisory — verify against the original.

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Details

Source
CISA Known Exploited Vulnerabilities (US · database · site)
Severity
critical
Published
2025-06-25
Exploitation
Observed in the wild (CISA KEV)

Original advisory: https://nvd.nist.gov/vuln/detail/CVE-2019-6693

Exploitation outlook

EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.

Referenced CVEs

CVECSIRTS overviewExternal
CVE-2019-6693coverage & exploitation statusNVD · CVE.org

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