On 2025-06-25, CISA added CVE-2019-6693 (Fortinet FortiOS) to its Known Exploited Vulnerabilities (KEV) catalog [2]. The vulnerability is listed in the catalog as "Fortinet FortiOS Use of Hard-Coded Credentials Vulnerability" [2]. CISA requires remediation in accordance with the listed vendor mitigation guidance; see the original text in the body for specific requirements [2].
Backfill: this event became public on Jun 25, 2025 and we added it on Nov 10, 2026. It is not a new event.
CISA Adds Fortinet FortiOS Vulnerability CVE-2019-6693 to Known Exploited Vulnerabilities Catalog
1 min read
- Disclosed
- Jun 25, 2025
- Published
- Nov 10, 2026
- Last updated
- Nov 8, 2026
- CVSS basis
- Our assessment
- 6.6%, higher than 94% of CVEs
- Exploitation and patch status
- ExploitedKEV
- Attack vector
- Vulnerability status
- Actor type
- Motivation
On this page
30-second summary
What happened
Who is affected
Industries mainly affected: Government, Cross-industry
What to do nowOur advice
CISA requires remediation in accordance with the listed vendor mitigation guidance; see the original text in the body for specific requirements [2].
Timeline
Technical details
CISA KEV Listing Record
CISA added CVE-2019-6693 (Fortinet FortiOS) to the Known Exploited Vulnerabilities () catalog on 2025-06-25 [2].
Original Technical 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. [2]
Official Required Action
Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable. [2]
Individual Vulnerability Record
The U.S. National Vulnerability Database (NVD) provides an independent vulnerability record and description for CVE-2019-6693 [1].
References
Official / primary3
- [1]
“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 admini”
- [2]
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