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VulnerabilitiesOct 14, 2026

Citrix, Fortinet, Ivanti Patch 29 Vulnerabilities Across Their Products

Citrix, Fortinet, and Ivanti patch 29 vulnerabilities, including critical flaws and an exploited zero-day.

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Summary

Citrix, Fortinet, and Ivanti have collectively released patches for 29 vulnerabilities across their product lines. These include critical-severity flaws that could lead to authentication bypass, arbitrary code execution, and sensitive information leaks. Notably, Ivanti addressed an exploited zero-day in its Connect Secure VPN, which involved chaining two underlying bugs.

The lesson from this incident

Full lesson

Vendors Citrix, Fortinet, and Ivanti collectively patched 29 vulnerabilities, including critical flaws enabling authentication bypass, remote code execution, and data leakage. Most alarming is an actively exploited zero-day in Ivanti Connect Secure VPN, where attackers chained two bugs together to achieve compromise — underscoring that unpatched network edge devices are prime targets. The fact that this zero-day was already being exploited in the wild at the time of disclosure means organizations that delayed patching were exposed. Network appliances like VPNs and firewalls are especially high-value targets because they sit at the perimeter and often have privileged access to internal systems. Prompt patching of these devices is not optional — it is a fundamental security baseline.

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Indicators of Compromise

  • cve — CVE-2026-106173
  • cve — CVE-2026-107656
  • cve — CVE-2026-104935
  • cve — CVE-2026-109412
  • cve — CVE-2026-106042

Entities

Citrix (vendor)Fortinet (vendor)Ivanti (vendor)Workspace App for Windows (product)XenServer (product)FortiSIEM (product)