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CVE-2026-25815

3.2 · LOW

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 k…

Published Feb 5, 2026CWE-1394EPSS 0.10%

Overview

CVE-2026-25815 is a low-severity vulnerability. It was published on February 5, 2026 and has a CVSS 3.1 base score of 3.2 (LOW).

This vulnerability has a CVSS 3.1 base score of 3.2, rated LOW. It requires local or adjacent network access to exploit. No authentication or special privileges are required for exploitation.

Technical description

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.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

Refdocs.fortinet.com/document/fortimanager/7.6.6/administration-guide/30332/managing-fortigates-with-private-data-encryptionRefwww.cert.at/en/blog/2026/1/threat-actors-use-forticloud-to-collect-ldap-connection-passwords

How CyberStrike helps

Frequently asked questions

What is CVE-2026-25815?

CVE-2026-25815 is a low-severity vulnerability. It was published on February 5, 2026 and has a CVSS 3.1 base score of 3.2 (LOW).

How severe is CVE-2026-25815?

This vulnerability has a CVSS 3.1 base score of 3.2, rated LOW. It requires local or adjacent network access to exploit. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2026-25815?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2026-25815?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2026-25815 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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