CVE-2025-43892: Fortinet FortiOS

Medium severity, CVSS 4.3. EPSS: 0.4% chance of exploitation in the next 30 days.

A buffer over-read vulnerability in Fortinet FortiOS 7.6.0 through 7.6.3, FortiOS 7.4.0 through 7.4.8, FortiOS 7.2 all versions, FortiOS 7.0 all versions, FortiOS 6.4 all versions may allow an authenticated remote attacker to return a portion of device memory in the redirect response via submitting a specially crafted request.

Affected products

• Fortinet FortiOS: from 7.2.0, up to and including 7.2.13; from 7.4.0, up to and including 7.4.8; from 7.6.0, up to and including 7.6.2
• Fortinet FortiProxy: from 7.2.0, up to and including 7.2.15; from 7.4.0, up to and including 7.4.13; from 7.6.0, up to and including 7.6.5

Published 2026-07-14. Last modified 2026-09-29.