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oss-secXen Security Advisory 490 v1 (CVE-2025-54518) - x86: CPU Opcode Cache corruption

First published (updated )
https://seclists.org/oss-sec/2026/q2/502

XEN Xen Hypervisorgrant table v2 race in status page mapping

Risk 69
Severity
7.8
First published (updated )
CVE-2026-23558

Xen Project xenstoredXenstored DoS via XS_RESET_WATCHES command

Risk 39
Severity
6.5
First published (updated )
CVE-2026-23557

oss-secXen Security Advisory 483 v2 (CVE-2026-23556) - oxenstod keeps quota lated use counts across domain destruction

First published (updated )
https://seclists.org/oss-sec/2026/q2/245

Xen Project xenstoredXenstored DoS by unprivileged domain

Risk 42
Severity
7.1
First published (updated )
CVE-2026-23555
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Xen Project XenUse after free of paging structures in EPT

Risk 69
Severity
7.8
First published (updated )
CVE-2026-23554

oss-secXen Security Advisory 480 v3 (CVE-2026-23554) - Use after fe of paging structus in EPT

First published (updated )
https://seclists.org/oss-sec/2026/q1/327

XEN Xenx86: incomplete IBPB for vCPU isolation

Risk 12
Severity
2.9
EPSS
0.02%
First published (updated )
CVE-2026-23553

Xen Project Xenx86: buffer overrun with shadow paging + tracing

Risk 76
Severity
8.8
First published (updated )
CVE-2025-58150

Xen Security Advisory 471 v3 (CVE-2024-36350,CVE-2024-36357) - x86: Transitive Scheduler Attacks

First published (updated )
https://seclists.org/oss-sec/2025/q4/139
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Xen Security Notice 2 (CVE-2024-35347) AMD CPU Microcode SignatuVerification Vulnerability

First published (updated )
https://seclists.org/oss-sec/2025/q4/106

Xen Project Xen HypervisorIncorrect removal of permissions on PCI device unplug

Risk 46
Severity
7.5
First published (updated )
CVE-2025-58149

Xen Security Advisory 476 v1 (CVE-2025-58149) - Incorct moval of permissions on PCI device unplug

First published (updated )
https://seclists.org/oss-sec/2025/q4/70

XEN Xenx86: Incorrect input sanitisation in Viridian hypercalls

Risk 46
Severity
7.5
First published (updated )
CVE-2025-58148

XEN Xenx86: Incorrect input sanitisation in Viridian hypercalls

Risk 46
Severity
7.5
First published (updated )
CVE-2025-58147
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Xen Security Advisory 475 v2 (CVE-2025-58147,CVE-2025-58148) - x86: Incorct input sanitisation in Viridian hypercalls

First published (updated )
https://seclists.org/oss-sec/2025/q4/65

XEN Xen HypervisorArm issues with page refcounting

Risk 46
Severity
7.5
First published (updated )
CVE-2025-58144

XEN Xen HypervisorArm issues with page refcounting

Risk 46
Severity
7.5
First published (updated )
CVE-2025-58145

XEN ViridianMutiple vulnerabilities in the Viridian interface

Risk 90
Severity
9.8
First published (updated )
CVE-2025-58142

XEN Viridian interfaceMutiple vulnerabilities in the Viridian interface

Risk 90
Severity
9.8
First published (updated )
CVE-2025-58143
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XEN Viridian interfaceMutiple vulnerabilities in the Viridian interface

Risk 90
Severity
9.8
First published (updated )
CVE-2025-27466

Xen Security Advisory 474 v2 (CVE-2025-58146) - XAPI UTF-8 string handling

First published (updated )
https://seclists.org/oss-sec/2025/q3/159

Xen Security Advisory 473 v2 (CVE-2025-58144,CVE-2025-58145) - Arm issues with page fcounting

First published (updated )
https://seclists.org/oss-sec/2025/q3/158

Xen Security Advisory 472 v2 (CVE-2025-27466,CVE-2025-58142,CVE-2025-58143) - Mutiple vulnerabilities in the Viridian interface

First published (updated )
https://seclists.org/oss-sec/2025/q3/157

Xen Security Advisory 471 v2 (CVE-2024-36350,CVE-2024-36357) - x86: Transitive Scheduler Attacks

First published (updated )
https://seclists.org/oss-sec/2025/q3/141
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Xen Project Xenx86: Incorrect stubs exception handling for flags recovery

Risk 24
Severity
4.3
First published (updated )
CVE-2025-27465

Xen Security Advisory 468 v3 (CVE-2025-27462,CVE-2025-27463,CVE-2025-27464) - WinPVDrivers: Excessive permissions on user-exposed devices

First published (updated )
CVE-2025-27462

Xen Security Advisory 468 v3 (CVE-2025-27462,CVE-2025-27463,CVE-2025-27464) - WinPVDrivers: Excessive permissions on user-exposed devices

First published (updated )
CVE-2025-27464

Xen Security Advisory 468 v3 (CVE-2025-27462,CVE-2025-27463,CVE-2025-27464) - WinPVDrivers: Excessive permissions on user-exposed devices

First published (updated )
CVE-2025-27463

Xen Security Advisory 468 v3 (CVE-2025-27462,CVE-2025-27463,CVE-2025-27464) - WinPVDrivers: Excessive permissions on user-exposed devices

First published (updated )
https://seclists.org/oss-sec/2025/q2/168
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