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CVE-2011-1965

48
FAUCET Score

CVE-2011-1965 is a denial-of-service vulnerability in the TCP/IP stack of Microsoft Windows 7 and Windows Server 2008 R2. It stems from improper implementation of URL-based QoS, allowing a remote attacker to trigger a system reboot via a crafted URL sent to a web server. This vulnerability carries a CVSS score of 7.1, indicating high severity. It is remotely exploitable with medium attack complexity, leading to a complete denial of service (system reboot) without requiring authentication. While not listed in CISA's KEV catalog, an ExploitDB entry (EDB-17981) exists, suggesting proof-of-concept code is publicly available. Despite this, there is no significant community discussion or media coverage surrounding this decade-old vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
Range not provided by sourceCPE matchmatch criteria
cpe:2.3:o:microsoft:windows_7:-:*:*:*:*:*:*:*
Range not provided by sourceCPE matchmatch criteria
cpe:2.3:o:microsoft:windows_7:-:sp1:x64:*:*:*:*:*
Range not provided by sourceCPE matchmatch criteria
cpe:2.3:o:microsoft:windows_7:-:sp1:x86:*:*:*:*:*
r2CPE matchmatch criteria
cpe:2.3:o:microsoft:windows_server_2008:r2:*:itanium:*:*:*:*:*
r2CPE matchmatch criteria
cpe:2.3:o:microsoft:windows_server_2008:r2:*:x64:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

7.1HIGH

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

Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
COMPLETE
Access Vector
NETWORK
Access Complexity
MEDIUM
Authentication
NONE
Exploitability Score
8.6
Impact Score
6.9
CvssVersion
2.0

Exploit Intelligence

EPSS Score
24.93%
Probability of exploitation in next 30 days
EPSS Percentile
97.7%
Percentile rank of EPSS score among Peer Group
As of 2026-07-24
Model: v2026.06.15
ExploitDB: EDB-17981 · Oct 15, 2011
This CVE's current EPSS score of 0.2493 is in the 90th percentile among its peer group of 8,913 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.1 Bluesky, 0.0 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/ms11-064
securityreason.com / securityalert/8474
oval.cisecurity.org / repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A12318
us-cert.gov / cas/techalerts/TA11-221A.html
US Government Resource