LDAP credential disclosure via shared default key
Published Feb 5, 2026 · Updated Feb 5, 2026
Use of a default cryptographic key in Fortinet FortiOS through 7.6.6 allows attackers to decrypt LDAP credentials in configuration files. The private-data storage path encrypts reversible LDAP bind passwords with a predefined key that is static across installations when private-data-encryption is disabled. Exploitation requires a configuration dump or backup; the recovered data includes LDAP bind credentials but not local user passwords.
Summary
What happened
Use of a default cryptographic key in Fortinet FortiOS through 7.6.6 allows attackers to decrypt LDAP credentials in configuration files. The private-data storage path encrypts reversible LDAP bind passwords with a predefined key that is static across installations when private-data-encryption is disabled. Exploitation requires a configuration dump or backup; the recovered data includes LDAP bind credentials but not local user passwords.
The record
- CVE
- CVE-2026-25815
- Published
- Feb 5, 2026
- Updated
- Feb 5, 2026
- Vendor
- Fortinet
- Product
- FortiOS
- Classifications
- CWE-1394, T1552.001
- Attack vector
- local
- Privileges
- unauthenticated
Timeline
How it unfolded
- Feb 5, 2026CVE publishedPublication date reported by the CVE source.
- Feb 5, 2026Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
Compare your product and version with the public record. A matching version still requires validation against your environment.
Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=0 <=7.6.6
What conditions does exploitation require?
What is affected?
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Public exploit references
No public exploit references are available in this record.
Labels summarize the accepted research assessment. They do not indicate a test against your environment.
Reported exploitation
Technologies
Your stack
See the directory against your own environment.
Your stack
Check the software in your environment
Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.
Book a demo