Hkcert Citrix XenServer Vulnerabilities Require Immediate Updates
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- •Multiple vulnerabilities in Citrix XenServer identified on November 4, 2026.
- •Affected systems include Workload Balancing and Conversion Manager.
- •Users must update to versions 2026.1.1 or later for Workload Balancing and 2026.2.0 for Conversion Manager.
Citrix has identified multiple vulnerabilities in XenServer affecting Workload Balancing and Conversion Manager. A remote attacker could exploit these vulnerabilities to cause denial of service and bypass security restrictions. Specifically, versions of Workload Balancing prior to 2026.1.1 and Conversion Manager before 2026.2.0 are impacted. Citrix has released updates for both products and recommends users to upgrade to the latest versions. The vulnerabilities were disclosed on November 4, 2026, and are considered significant due to their potential impact on system security. Users are advised to apply the patches as soon as possible to mitigate risks. The details of the vulnerabilities and the patches can be found on Citrix's support site.
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