Fortinet Patches Released!

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Fortinet announced fixes for eight vulnerabilities on August 12-13, 2026.

Key items for administrators

FortiWeb
  • CVE-2026-26035 (High): Improper authentication vulnerability that could allow an unauthenticated attacker to log in with arbitrary credentials when specific non-default wildcard admin settings are enabled.
  • Fixed in:
    • FortiWeb 8.0.3
    • FortiWeb 7.6.7
    • FortiWeb 7.4.12
    • FortiWeb 7.2.13
FortiManager

  • CVE-2026-70468 (High): Authentication bypass that could allow an attacker to impersonate a managed FortiGate under specific conditions.
FortiClient for Windows

  • CVE-2026-70465 (High): Buffer overflow vulnerability that could allow remote code execution if an attacker can manipulate DNS responses.
FortiOS

  • Fortinet also addressed additional medium and low severity vulnerabilities in FortiOS as part of the advisory set.

Recommended action

  1. Review exposed FortiWeb, FortiManager, and FortiClient Windows deployments first.
  2. Verify current firmware versions.
  3. Follow Fortinet's recommended upgrade path and patch to the latest maintenance release available for your branch.
As a Sr. Systems Administrator, if you tell me your environment versions (FortiGate/FortiOS, FortiManager, FortiAnalyzer, FortiClient EMS, etc.), I can give you a targeted upgrade recommendation and identify whether any of these vulnerabilities affect your specific releases.

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