CVE-2010-0306

NONECVSS 0.0
0.0
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • No confirmed exploitation signals yet
CISA-KEV: Not listedEPSS: 0%CVSS: —Exploit: NoneExposed: 0

A fix is available — apply it.

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.

CVSS v3
—
EG Score
0.0(none)
EG Risk
0
EG Risk 0/100

EG Risk is EchelonGraph's 0–100 priority score. It fuses intrinsic severity with real-world exploitation and automatability, so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. It is distinct from the 0–10 EG Score, which measures severity.

EPSS
30.7%
KEV
Not listed

Published

February 12, 2010

Last Modified

April 29, 2026

References (16)

Vendor Advisories for CVE-2010-0306(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Patch Availability(3)

Vendor / EcosystemFixed in / PatchReleasedSource
ubuntulinux-image-2.6.31-214-dove-z0 (2.6.31-214.28) @ karmic2026-05-29ubuntu
redhatkvm-0:83-105.el5_4.222010-02-09redhat
redhatrhev-hypervisor-0:5.4-2.1.8.el5_4rhev2_12010-02-09redhat

Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.

Additional Vendor Advisories

(2)

Vendors that published advisories for this CVE beyond the curated set above. Broader coverage but minimal per-row detail — click through for the original advisory.

Data Freshness Timeline

(refreshed 11× in last 7d / 34× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

  1. 2026-07-23 01:00 UTCEG score recompute
  2. 2026-07-23 00:38 UTCEG score recompute
  3. 2026-07-23 00:05 UTCEG score recompute
  4. 2026-07-22 21:44 UTCEG score recompute
  5. 2026-07-22 14:03 UTCEPSS rescore
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  7. 2026-07-21 15:20 UTCEPSS rescore
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  1. 2026-06-28 14:03 UTCEPSS rescore
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  5. 2026-06-25 13:46 UTCEPSS rescore
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  22. 2026-06-15 17:44 UTCEPSS rescore
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  24. 2026-06-13 22:57 UTCEPSS rescore
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  27. 2026-06-12 23:08 UTCEPSS rescore
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  29. 2026-06-11 13:56 UTCEPSS rescore
  30. 2026-06-10 22:14 UTCEPSS rescore
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  45. 2026-06-01 13:49 UTCEPSS rescore
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  47. 2026-05-31 22:28 UTCEPSS rescore
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  49. 2026-05-31 00:14 UTCEPSS rescore
  50. 2026-05-31 00:13 UTCEPSS rescore
  51. 2026-05-29 13:40 UTCEPSS rescore
  52. 2026-05-29 12:49 UTCEG score recompute
  53. 2026-05-29 12:49 UTCVendor advisory
  54. 2026-05-29 12:49 UTCGHSA enrichment
  55. 2026-05-28 13:42 UTCEPSS rescore
  56. 2026-05-28 13:42 UTCEPSS rescore
  57. 2026-05-27 13:38 UTCEPSS rescore
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  59. 2026-05-26 13:41 UTCEPSS rescore
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  72. 2026-05-18 21:29 UTCEPSS rescore
  73. 2026-05-18 21:29 UTCEPSS rescore

Frequently asked(4)

What is CVE-2010-0306?
CVE-2010-0306 is a none vulnerability published on February 12, 2010. 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…
When was CVE-2010-0306 disclosed?
CVE-2010-0306 was first published in the National Vulnerability Database on February 12, 2010, with the most recent update on April 29, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2010-0306 actively exploited?
CVE-2010-0306 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 30.7% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
How do I remediate CVE-2010-0306?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2010-0306, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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