XenServer Security Update for Multiple Issues

Severity: High Description of Problem Several issues have been identified that affect XenServer 8.4. These are: An issue that may, in some circumstances, allow a malicious privileged user in a guest VM to compromise the host. This issue has the following identifier: CVE-2026-23558 An issue that m...

XenServer Security Update for CVE-2024-36350 and CVE-2024-36357

Severity: Medium Description of Problem AMD has disclosed several security issues affecting AMD CPUs. These CPU hardware issues may allow code in a guest VM to infer some active memory content of another VM that is running on the same host. Although these are not vulnerabilities in the XenServer...

CVE-2024-5661

An issue has been identified in both XenServer 8 and Citrix Hypervisor 8.2 CU1 LTSR which may allow a malicious administrator of a guest VM to cause the host to become slow and/or unresponsive...

Citrix Systems Citrix Hypervisor Security Vulnerability

Citrix Systems Citrix Hypervisor is an application from Citrix Systems, Inc. It is used to simplify operations management and ensure a high-definition user experience for intensive workloads. A security vulnerability exists in Citrix Hypervisor version 8.2 CU1 LTSR and XenServer 8, which stems fr...

PT-2024-4265 · Citrix · Citrix Hypervisor +1

Name of the Vulnerable Software and Affected Versions: Citrix Hypervisor versions 8.2 CU1 LTSR XenServer version 8 Description: The issue is related to improper rate limiting in an endpoint, which may allow an attacker to cause a denial of service. A malicious administrator of a guest VM can...