CVE-2026-59840

Name of the Vulnerable Software and Affected Versions FortiOS versions 7.6.0 through 7.6.3 FortiOS versions 7.4.0 through 7.4.8 FortiOS 7.2 (affected versions not specified) FortiOS 7.0 (affected versions not specified) FortiOS 6.4 (affected versions not specified) FortiProxy versions 7.6.0 through 7.6.5 FortiProxy versions 7.4.0 through 7.4.13 FortiProxy 7.2 (affected versions not specified) FortiProxy 7.0 (affected versions not specified)

Description A buffer over-read issue exists that may allow an attacker to achieve information disclosure. A buffer over-read occurs when a program reads more data from a buffer than it is intended to, potentially exposing sensitive data from adjacent memory locations.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.