PT-2025-23026

Warning: High severity vulnerabilities in @Citrix XenServer VM Tools for Windows CVE-2025-27462, CVE-2025-27463, CVE-2025-27464 impact Windows VMs on XenServer 8.4 & Citrix Hypervisor 8.2 CU1 LTSR, risking sandbox escapes. Act now! Patch https://t.co/SF4q8mMyxr...

PT-2025-23025

Warning: High severity vulnerabilities in @Citrix XenServer VM Tools for Windows CVE-2025-27462, CVE-2025-27463, CVE-2025-27464 impact Windows VMs on XenServer 8.4 & Citrix Hypervisor 8.2 CU1 LTSR, risking sandbox escapes. Act now! Patch https://t.co/SF4q8mMyxr...

CVE-2010-2619

Citrix XenServer 5.0 Update 2 and earlier, and 5.5 Update 1 and earlier, when using a pvops kernel, allows guest users to cause a denial of service in the host via unspecified vectors that trigger "incorrectly set flags."...

CVE-2010-0633

Unspecified vulnerability in Citrix XenServer 5.0 Update 3 and earlier, and 5.5, allows local users to bypass authentication and execute unspecified Xen API XAPI calls via unknown vectors...

Oracle Linux 5 : ELSA-2012-0721-1: / kernel (ELSA-2012-07211)

The remote Oracle Linux 5 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2012-07211 advisory. - The x86-64 kernel system-call functionality in Xen 4.1.2 and earlier, as used in Citrix XenServer 6.0.2 and earlier and other products; Oracle Solar...

SUSE CVE-2012-3496

XENMEMpopulatephysmap in Xen 4.0, 4.1, and 4.2, and Citrix XenServer 6.0.2 and earlier, when translating paging mode is not used, allows local PV OS guest kernels to cause a denial of service BUG triggered and host crash via invalid flags such as MEMFpopulateondemand...

SUSE CVE-2012-3498

PHYSDEVOPmappirq in Xen 4.1 and 4.2 and Citrix XenServer 6.0.2 and earlier allows local HVM guest OS kernels to cause a denial of service host crash and possibly read hypervisor or guest memory via vectors related to a missing range check of map-index...

Vulnerabilities fixed in Citrix Hypervisor

Vulnerabilities have been fixed in Citrix Hypervisor and Citrix XenServer. The vulnerabilities potentially enable a malicious party to able to derive memory content from another virtual machine. These vulnerabilities are only present when the vulnerable products are used on AMD Zen 1 or AMD Zen 2...

Driver Disk for LSI megaraid sas 07.701.18.00+rc1 - For XenServer 7.x CR

Who Should Install this Driver Disk? Customers running a Citrix XenServer 7.x Current Release who use LSI's megaraid-sas driver and wish to use the latest version of the following: Driver Module| Version ---|--- megaraid-sas| 07.701.18.00+rc1 Issues Resolved In this Driver Disk Includes general...

Driver Disk for HP Smart Array RAID Controller hpsa v3.2.0-3 - For XenServer 6.0.2

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Vulnerabilities fixed in Xen, Citrix XenServer and Hypervisor

Vulnerabilities have been fixed in Xen, Citrix XenServer and Hypervisor. The vulnerabilities allow a malicious party to cause a denial-of-service DoS or to execute arbitrary code execute arbitrary code under application privileges. -= Citrix Xenserver =- Citrix has released updates to fix the...

Privilege escalation

Citrix XenServer 4.1, 6.0, 5.6 SP2, 5.6 Feature Pack 1, 5.6 Common Criteria, 5.6, 5.5, 5.0, and 5.0 Update 3 contains a Local Privilege Escalation Vulnerability which could allow local users with access to a guest operating system to gain elevated privileges...

CVE-2012-4606

Citrix XenServer 4.1, 6.0, 5.6 SP2, 5.6 Feature Pack 1, 5.6 Common Criteria, 5.6, 5.5, 5.0, and 5.0 Update 3 contains a Local Privilege Escalation Vulnerability which could allow local users with access to a guest operating system to gain elevated privileges...

Multiple Intel Processors CVE-2018-12207 Denial of Service Vulnerability

Description Multiple Intel Processors are prone to a denial of service vulnerability. An attacker can exploit this issue to cause a denial-of-service condition. Technologies Affected Citrix Hypervisor 8.0 Citrix XenServer 7.0 Citrix XenServer 7.1 LTSR CU2 Citrix XenServer 7.6 Intel 2nd generation...

Multiple Intel Processors Side Channel CVE-2019-11135 Information Disclosure Vulnerability

Description Multiple Intel Processors are prone to a local information-disclosure vulnerability. A local attacker can leverage this issue to obtain sensitive information that may aid in further attacks. Technologies Affected Citrix Hypervisor 8.0 Citrix XenServer 7.0 Citrix XenServer 7.1 LTSR CU2...

Xen CVE-2019-18421 Privilege Escalation Vulnerability

Description Xen is prone to a privilege-escalation vulnerability. An attacker can exploit this issue to gain elevated privileges, obtain sensitive information or cause denial-of-service conditions. Technologies Affected Citrix Hypervisor 8.0 Citrix XenServer 7.0 Citrix XenServer 7.1 LTSR CU2 Citr...

CVE-2014-3798

The Windows Guest Tools in Citrix XenServer 6.2 SP1 and earlier allows remote attackers to cause a denial of service guest OS crash via a crafted Ethernet frame...

Design/Logic Flaw

The Windows Guest Tools in Citrix XenServer 6.2 SP1 and earlier allows remote attackers to cause a denial of service guest OS crash via a crafted Ethernet frame...

CVE-2014-3798

The Windows Guest Tools in Citrix XenServer 6.2 SP1 and earlier allows remote attackers to cause a denial of service guest OS crash via a crafted Ethernet frame...

Citrix XenServer Microarchitectural Data Sampling Speculative Side-Channel Vulnerabilities (MDSUM/RIDL) (MFBDS/RIDL/ZombieLoad) (MLPDS/RIDL) (MSBDS/Fallout) (CTX2251995)

The version of Citrix XenServer running on the remote host is missing a security hotfix. It is, therefore, affected by microarchitectural data sampling speculative side-channel vulnerabilities. These vulnerabilities may allow a local attacker on a guest machine to sample the contents of memory...