Hyper-V in Microsoft Windows Server 2008 Gold, SP2, R2, and R2 SP1 allows guest OS users to cause a denial of service (host OS infinite loop) via malformed machine instructions in a VMBus packet, aka "VMBus Persistent DoS Vulnerability."
Published Jun 16, 2011
4.7
MEDIUMCVSS 2.0
EPSS 2.64%
Description
Hyper-V in Microsoft Windows Server 2008 Gold, SP2, R2, and R2 SP1 allows guest OS users to cause a denial of service (host OS infinite loop) via malformed machine instructions in a VMBus packet, aka "VMBus Persistent DoS Vulnerability."
Affected products
No data.
- n/a
- n/a
- r2
No data.
No Red Hat product state for this CVE.
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
No CVSS v3.0 score for this CVE.
AV:L/AC:M/Au:N/C:N/I:N/A:C
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
Score over time
2022–2026- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (14 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 2.64% (0.02644) | 85.07th | v5 (v2026.06.15) |
| Jun 15, 2026 | 2.64% (0.02644) | 83.57th | v5 (v2026.06.15) |
| Mar 30, 2025 | 3.13% (0.03131) | 85.69th | v4 (v2025.03.14) |
| Mar 29, 2025 | 4.84% (0.04838) | 82.15th | v4 (v2025.03.14) |
| Mar 17, 2025 | 2.70% (0.02701) | 84.90th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.09% (0.00086) | 38.27th | v3 (v2023.03.01) |
| Oct 23, 2023 | 0.09% (0.00086) | 35.82th | v3 (v2023.03.01) |
| Jul 5, 2023 | 0.11% (0.00109) | 42.70th | v3 (v2023.03.01) |
| May 12, 2023 | 0.20% (0.00201) | 56.66th | v3 (v2023.03.01) |
| Mar 15, 2023 | 0.12% (0.00122) | 44.80th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.11% (0.00107) | 41.76th | v3 (v2023.03.01) |
| Mar 6, 2023 | 2.70% (0.02696) | 82.86th | v2 (v2022.01.01) |
| Apr 1, 2022 | 2.70% (0.02696) | 81.18th | v2 (v2022.01.01) |
| Feb 4, 2022 | 2.70% (0.02696) | 62.67th | v2 (v2022.01.01) |
References (4)
- http://www.securityfocus.com/bid/48179 vdb-entryx_refsource_BID
- http://www.securitytracker.com/id?1025644 vdb-entryx_refsource_SECTRACK
- https://docs.microsoft.com/en-us/security-updates/securitybulletins/2011/ms11-047 vendor-advisoryx_refsource_MS
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A12650 vdb-entrysignaturex_refsource_OVAL
| Link | Providers | Tags |
|---|---|---|
| http://www.securityfocus.com/bid/48179 | vdb-entryx_refsource_BID | |
| http://www.securitytracker.com/id?1025644 | vdb-entryx_refsource_SECTRACK | |
| https://docs.microsoft.com/en-us/security-updates/securitybulletins/2011/ms11-047 | vendor-advisoryx_refsource_MS | |
| https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A12650 | vdb-entrysignaturex_refsource_OVAL |
Change history (0)
No recorded changes yet.