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CVE Record

CVE-2014-1666: The do_physdev_op function in Xen 4.1.5, 4.1.6.1, 4.2.2 through 4.2.3, and 4.3.x does not properly restrict...

The do_physdev_op function in Xen 4.1.5, 4.1.6.1, 4.2.2 through 4.2.3, and 4.3.x does not properly restrict access to the (1) PHYSDEVOP_prepare_msix and (2) PHYSDEVOP_release_msix operations, which allows local PV guests to cause a denial of service (host or guest malfunction) or possibly gain privileges via unspecified vectors.

UnknownCVSS not scoredNot KEV-listedUpdated
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Glexia's TakeAutomated analysis

Security readout for executives and security teams

CVE-2014-1666 is a Xen hypervisor flaw where some privileged hardware-related operations were exposed too broadly to local paravirtualized guests. A guest VM could potentially disrupt the host or other guests, and the record also notes possible privilege gain, but details are unspecified. Exposure is limited to Xen environments running the affected versions with local PV guests. Multi-tenant virtualization, hosted infrastructure, or systems allowing less-trusted guest administrators carry the highest concern. Treat this as high priority for legacy Xen estates, especially multi-tenant hosts. The age lowers likelihood in fully patched environments, but host-level denial of service and possible privilege impact justify prompt verification. Mitigation focus: Apply Xen XSA-87 or vendor distribution updates where applicable.; Review SUSE, Fedora, Gentoo, Citrix, or Xen guidance for fixed packages.; Prioritize hypervisors hosting untrusted or multi-tenant PV guests..

Prepared

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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Vulnerability profileCVE Program record
Severity
Unknown
CVSS
Not scored
Known Exploited
No
Published
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

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Source materials

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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