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CVE-2011-1872

26
FAUCET Score

CVE-2011-1872 is a denial-of-service vulnerability affecting Microsoft Hyper-V in Windows Server 2008 and its service packs. A malicious guest operating system user can trigger an infinite loop on the host OS by sending malformed machine instructions via a VMBus packet. This vulnerability has a CVSS score of 4.7, indicating a medium severity, as it requires local access and medium attack complexity to achieve a complete availability impact. While not actively exploited in the wild, public exploit code exists, specifically EDB-17401, though it has received minimal community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
All Versions ImpactedCPE matchmatch criteria
cpe:2.3:o:microsoft:windows_server_2008:*:*:x64:*:*:*:*:*
All Versions ImpactedCPE matchmatch criteria
cpe:2.3:o:microsoft:windows_server_2008:*:sp2:x64:*:*:*:*:*
r2CPE matchmatch criteria
cpe:2.3:o:microsoft:windows_server_2008:r2:*:x64:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

4.7MEDIUM

AV:L/AC:M/Au:N/C:N/I:N/A:C

Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
COMPLETE
Access Vector
LOCAL
Access Complexity
MEDIUM
Authentication
NONE
Exploitability Score
3.4
Impact Score
6.9
CvssVersion
2.0

Exploit Intelligence

EPSS Score
2.64%
Probability of exploitation in next 30 days
EPSS Percentile
84.0%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
ExploitDB: EDB-17401 · Jun 14, 2011
This CVE's current EPSS score of 0.0264 is in the 97th percentile among its peer group of 1,595 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

docs.microsoft.com / en-us/security-updates/securitybulletins/2011/ms11-047
oval.cisecurity.org / repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A12650
securityfocus.com / bid/48179
securitytracker.com / id