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CVE-2011-1248

65
FAUCET Score

CVE-2011-1248 describes a critical vulnerability in the Windows Internet Name Service (WINS) of Microsoft Windows Server 2003 SP2 and Server 2008 (Gold, SP2, R2, and R2 SP1). The flaw stems from improper handling of socket send exceptions, allowing remote attackers to execute arbitrary code or cause a denial of service through memory corruption via specially crafted packets. With a CVSS score of 9.3, this vulnerability is highly severe, requiring no authentication and having high impact on confidentiality, integrity, and availability, though it has a medium attack complexity. While not listed in CISA's KEV catalog, public exploit code exists (EDB-17830), indicating potential for exploitation, despite a lack of active exploitation reports or significant community discussion.

Impacted Technologies

VendorProductVersion(s)CPE
All Versions ImpactedCPE matchmatch criteria
cpe:2.3:o:microsoft:windows_server_2003:*:sp2:*:*:*:*:*:*
All Versions ImpactedCPE matchmatch criteria
cpe:2.3:o:microsoft:windows_server_2008:*:*:x32:*:*:*:*:*
All Versions ImpactedCPE matchmatch criteria
cpe:2.3:o:microsoft:windows_server_2008:*:sp2:x32:*:*:*:*:*
All Versions ImpactedCPE matchmatch criteria
cpe:2.3:o:microsoft:windows_server_2008:*:sp2:x64:*:*:*:*:*
Range not provided by sourceCPE matchmatch criteria
cpe:2.3:o:microsoft:windows_server_2008:-:*:x64:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

9.3HIGH

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

Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
Access Vector
NETWORK
Access Complexity
MEDIUM
Authentication
NONE
Exploitability Score
8.6
Impact Score
10.0
CvssVersion
2.0

Exploit Intelligence

EPSS Score
47.57%
Probability of exploitation in next 30 days
EPSS Percentile
98.7%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
ExploitDB: EDB-17830 · Sep 13, 2011
This CVE's current EPSS score of 0.4757 is in the 98th percentile among its peer group of 8,918 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 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/ms11-035
oval.cisecurity.org / repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A12724