Lucene search
K

CVE-2026-23553

🗓️ 28 Jan 2026 15:33:44Reported by XENType 
cve
 cve
🔗 web.nvd.nist.gov👁 13 Views

CVE-2026-23553: Xen may skip IBPB during vCPU migration, allowing BTB leakage between tasks.

Related
Detection
Affected
Refs
ReporterTitlePublishedViews
Family
ATTACKERKB
CVE-2026-23553
28 Jan 202615:33
attackerkb
AlpineLinux
CVE-2026-23553
28 Jan 202615:33
alpinelinux
Circl
CVE-2026-23553
27 Jan 202611:09
circl
CNNVD
Xen security vulnerabilities
28 Jan 202600:00
cnnvd
Citrix
Security Bulletins for XenServer
21 Aug 202406:47
citrix
Citrix
XenServer Security Update for CVE-2025-58151 and CVE-2026-23553
27 Jan 202610:16
citrix
Cvelist
CVE-2026-23553 x86: incomplete IBPB for vCPU isolation
28 Jan 202615:33
cvelist
Debian CVE
CVE-2026-23553
28 Jan 202615:33
debiancve
EUVD
EUVD-2026-4882
28 Jan 202615:33
euvd
EUVD
EUVD-2026-9392
4 Mar 202612:30
euvd
Rows per page
NVD
Node
xenxenRange4.6.0x86
[
  {
    "defaultStatus": "unknown",
    "product": "Xen",
    "vendor": "Xen",
    "versions": [
      {
        "status": "unknown",
        "version": "consult Xen advisory XSA-479"
      }
    ]
  }
]

Data

Build on a solid foundation with Vulners data

We provide the essential building blocks for cybersecurity solutions with comprehensive, structured, and constantly updated vulnerability and exploits data

Api

Power your application with Vulners API

The Vulners REST API offers reliable, high-performance access to vulnerability intelligence, with 99.9% SLA uptime and CDN-backed data delivery for seamless global access

App

Assess and manage vulnerabilities with Vulners tools

Built on top of Vulners' database and SDK, end-user solutions give security professionals and developers lightweight and powerful tools for vulnerability remediation

09 Feb 2026 18:46Current
5.9Medium risk
Vulners AI Score5.9
CVSS 3.12.9
EPSS0.00033
SSVC
13