CVE-2015-2151: n/a vulnerability

CVE-2015-2151: The x86 emulator in Xen 3.2.x through 4.5.x does not properly ignore segment overrides for instructions wit...

The x86 emulator in Xen 3.2.x through 4.5.x does not properly ignore segment overrides for instructions with register operands, which allows local guest users to obtain sensitive information, cause a denial of service (memory corruption), or possibly execute arbitrary code via unspecified vectors.

UnknownCVSS not scoredNot KEV-listedUpdatedAug 6, 2024, 05:10 UTC (UTC+00:00)

Security readout for executives and security teams

This is a Xen hypervisor flaw where a user inside a virtual machine could affect the host’s x86 emulation handling. Reported outcomes include sensitive information exposure, denial of service through memory corruption, and possible arbitrary code execution. Exposure is most likely in legacy Xen-based virtualization stacks running Xen 3.2.x through 4.5.x, including downstream platforms covered by vendor advisories such as Citrix, Debian, Fedora, Huawei, Oracle, Juniper, openSUSE, and Gentoo. Treat as high priority for legacy Xen environments, especially multi-tenant infrastructure. There is no provided evidence of active exploitation, but the impact crosses guest-to-hypervisor trust boundaries and may affect confidentiality and availability. Mitigation focus: Identify any Xen hosts running 3.2.x through 4.5.x.; Review Xen XSA-123 and downstream vendor advisories for fixed package guidance.; Patch or upgrade affected Xen hypervisors through supported vendor channels..

Prepared: Jun 14, 2026, 05:11 UTC (UTC+00:00)

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

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Execution behavior lookup

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CVE-2015-2151 mapping review

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Vulnerability profileCVE Program record

Severity: Unknown
CVSS: Not scored
Known Exploited: No
Published: Mar 12, 2015, 14:00 UTC (UTC+00:00)

Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

0CVSS vectors

0Timeline events

0ADP providers

2Source links

CVSS and timeline data

No CVSS vectors or timeline events were available in the normalized CVE source material.

Source materials

CVE List V5 sourceCVE List V5
GLSA-201604-03CVE reference · vendor-advisory, x_refsource_GENTOO

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus

n/an/an/aListed

Weakness

CWE details

No CWE listed

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