CVE-2026-25815

What it is

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.

At a glance

Exploitability

Can be exploited locally on the machine without logging in. Limited direct impact.

Exploit odds

0.1% chance of exploitation in the next 30 days (EPSS).

Fix

No patch or advisory is linked yet. Look at mitigations or restrict exposure.

Timeline

1. 2026-02-05 22:15 UTC PublishedDisclosed publicly on CVE.org and NVD
2. 2026-06-17 10:25 UTC Last updatedMost recent change to the record

Details

Published

2026-02-05 22:15 UTC

Last modified

2026-06-17 10:25 UTC

Exploit probability

0.1% · EPSS, next 30 days

Weakness

CWE-1394

Record status

Deferred

Attack profile CVSS 3.1 · 3.2

Attack vector

Local

Complexity

High

Privileges needed

None

User interaction

None

Scope

Changed

Confidentiality

Low

Integrity

None

Availability

None