SB20260714106 - Multiple vulnerabilities in FortiOS and FortiProxy



SB20260714106 - Multiple vulnerabilities in FortiOS and FortiProxy

Published: July 14, 2026

Security Bulletin ID SB20260714106
CSH Severity
Low
Patch available
YES
Number of vulnerabilities 2
Exploitation vector Remote access
Highest impact Information disclosure

Breakdown by Severity

Low 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 2 vulnerabilities.


1) Buffer over-read (CVE-ID: CVE-2026-59840)

CWE-ID: CWE-126 - Buffer over-read

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear


The vulnerability allows a remote authenticated user to gain access to sensitive information.

The vulnerability exists due to buffer over-read in authd and wad daemon. An authenticated remote attacker can return a portion of device memory in the redirect response via submitting a specially crafted request.


2) Buffer over-read (CVE-ID: CVE-2025-43892)

CWE-ID: CWE-126 - Buffer over-read

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear


The vulnerability allows a remote authenticated user to gain access to sensitive information.

The vulnerability exists due to buffer over-read in authd and wad daemon. An authenticated remote attacker can return a portion of device memory in the redirect response via submitting a specially crafted request.


Remediation

Install update from vendor's website.