CVE-2010-0306: n/a vulnerability

CVE-2010-0306: The x86 emulator in KVM 83, when a guest is configured for Symmetric Multiprocessing (SMP), does not use th...

The x86 emulator in KVM 83, when a guest is configured for Symmetric Multiprocessing (SMP), does not use the Current Privilege Level (CPL) and I/O Privilege Level (IOPL) to restrict instruction execution, which allows guest OS users to cause a denial of service (guest OS crash) or gain privileges on the guest OS by leveraging access to a (1) IO port or (2) MMIO region, and replacing an instruction in between emulator entry and instruction fetch, a related issue to CVE-2010-0298.

UnknownCVSS not scoredNot KEV-listedUpdatedAug 7, 2024, 00:45 UTC (UTC+00:00)

Security readout for executives and security teams

This is a KVM virtualization flaw affecting SMP guest configurations. A user inside an affected guest could crash that guest or potentially gain higher privileges inside it. The provided sources do not describe host escape or active exploitation. Exposure is most likely in older Linux virtualization environments running KVM 83 with guest SMP enabled. The bundle does not identify broader product names or precise package versions beyond KVM 83 and vendor advisories. Treat this as a legacy virtualization hygiene issue with moderate urgency. Focus on confirming whether old KVM-based hosts still exist and whether vendor fixes were applied. Mitigation focus: Check Red Hat and Debian advisories for affected package names and fixed versions.; Update affected KVM or kernel virtualization packages according to vendor guidance.; Prioritize systems running SMP-enabled guests on legacy KVM deployments..

Prepared: Jun 28, 2026, 03:36 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

Conservative CVE-to-ATT&CK context

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Vulnerability profileCVE Program record

Severity: Unknown
CVSS: Not scored
Known Exploited: No
Published: Feb 12, 2010, 19:00 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

5Source 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
https://bugzilla.redhat.com/show_bug.cgi?id=560654CVE reference · x_refsource_CONFIRM
RHSA-2010:0088CVE reference · vendor-advisory, x_refsource_REDHAT
oval:org.mitre.oval:def:10953CVE reference · vdb-entry, signature
RHSA-2010:0095CVE reference · vendor-advisory, x_refsource_REDHAT

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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