CVE-2026-25815
LOWDescription
Fortinet FortiOS through 7.6.6 allows attackers to decrypt LDAP credentials stored in device configuration files, as exploited in the wild from 2025-12-16 through 2026 (by default, the encryption key is the same across all customers' installations). NOTE: the Supplier's position is that the instance of CWE-1394 is not a vulnerability because customers "are supposed to enable" a non-default option that eliminates the weakness. However, that non-default option can disrupt functionality as shown in the "Managing FortiGates with private data encryption" document, and is therefore intentionally not a default option.
How to fix
No published remediation has been found for this vulnerability's affected products yet.
Mitigation guidance may be in the linked vendor advisories in the References section below.
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CVSS v3 Vector
Exploitability
Impact
CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:C/C:L/I:N/A:N
Exploit Intelligence
Low risk: more likely to be exploited than 1% of all known CVEs.
References
Related Vulnerabilities
Other CWE-1394 vulnerabilities, ordered by exploit likelihood. View all
| CVE | Severity | CVSS | EPSS | Exploited | Fix |
|---|---|---|---|---|---|
| CVE-2024-48956 | Critical | 9.8 | 0.9% | - | - |
| CVE-2025-44954 | Critical | 9.0 | 0.7% | - | Fix |
| CVE-2024-11619 | Medium | 5.0 | 0.7% | - | - |
| CVE-2024-29037 | Critical | 9.1 | 0.6% | - | Fix |
| CVE-2023-6451 | High | 8.6 | 0.5% | - | Fix |
| CVE-2026-75870 | Critical | 9.1 | 0.5% | - | - |
Common questions
How do I fix CVE-2026-25815?
No published fix for CVE-2026-25815 has been found yet. Check the linked vendor advisories for guidance as it becomes available.
Is CVE-2026-25815 being actively exploited?
Not that we know of. CVE-2026-25815 is not in the CISA Known Exploited Vulnerabilities catalog. Its EPSS score of 0.11% is the estimated probability that it will be exploited in the next 30 days. That is higher than 1% of all scored CVEs.
How severe is CVE-2026-25815?
CVE-2026-25815 has a CVSS v3 base score of 3.2, rated low. CVSS rates the technical impact if the vulnerability is exploited, not how likely that is, so weigh it alongside the exploit-prediction score when you decide what to patch first.
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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-02-06.