CVE-2025-59921 Information disclosure in FortiADC

What is CVE-2025-59921?

CVE-2025-59921 is a medium-severity vulnerability in Fortinet FortiADC, published on 14 Oct 2025. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

An exposure of sensitive information to an unauthorized actor vulnerability [CWE-200] in Fortinet FortiADC version 7.4.0, version 7.2.3 and below, version 7.1.4 and below, 7.0 all versions, 6.2 all versions may allow an authenticated attacker to obtain sensitive data via crafted HTTP or HTTPs requests.

Weakness: CWE-200

Which versions are affected by CVE-2025-59921?

It affects 1 product.

Products include Fortinet Fortiadc.

How do I fix CVE-2025-59921?

No fix has been published for CVE-2025-59921 yet. Limit exposure of the affected software until one is available.

Is CVE-2025-59921 being exploited?

There is no known exploitation of CVE-2025-59921 in the wild and no public exploit code.

Other vulnerabilities in Fortinet FortiADC

• CVE-2018-13374 Fortinet FortiOS and FortiADC Improper Access Control Exploited Medium 4.3
• CVE-2022-38374 Cross-site scripting in Fortinet FortiADC High 8.8
• CVE-2023-37933 Cross-site scripting in FortiADC High 8.6
• CVE-2022-39947 Command injection in FortiADC High 8.6
• CVE-2022-35851 Cross-site scripting in Fortinet FortiADC High 8.0

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as GHSA-957v-4339-m5w7.