CVE-2011-2013

CRITICAL

Microsoft Windows - Buffer Overflow

Title source: llm
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for CVE-2011-2013. PoCs published by anonymous.

AI-analyzed exploit summary This exploit targets CVE-2011-2013, a remote integer-overflow vulnerability in the Microsoft Windows TCP/IP stack. It attempts to trigger the ICMP refCount overflow by flooding a closed UDP port with packets and then using ICMP echo packets to dereference the overflowed counter.

Description

Integer overflow in the TCP/IP implementation in Microsoft Windows Vista SP2, Windows Server 2008 SP2, R2, and R2 SP1, and Windows 7 Gold and SP1 allows remote attackers to execute arbitrary code by sending a sequence of crafted UDP packets to a closed port, aka "Reference Counter Overflow Vulnerability."

Exploits (1)

exploitdb WORKING POC VERIFIED
by anonymous · cdoswindows
https://www.exploit-db.com/exploits/36285

This exploit targets CVE-2011-2013, a remote integer-overflow vulnerability in the Microsoft Windows TCP/IP stack. It attempts to trigger the ICMP refCount overflow by flooding a closed UDP port with packets and then using ICMP echo packets to dereference the overflowed counter.

Classification
Working Poc 90%
Attack Type
Dos
Complexity
Complex
Reliability
Theoretical
Target: Microsoft Windows (Vista, 7, Server 2008)
No auth needed
Prerequisites: Network access to the target · Closed UDP port on the target
devstral-2 · analyzed Feb 16, 2026 Full analysis →

References (3)

Core 3
Core References
Third Party Advisory, VDB Entry vdb-entry x_refsource_sectrack
http://www.securitytracker.com/id?1026290
Third Party Advisory, VDB Entry vdb-entry signature x_refsource_oval
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A13877

Scores

CVSS v3 9.8
EPSS 0.4283
EPSS Percentile 97.6%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CISA SSVC

Vulnrichment
Exploitation none
Automatable yes
Technical Impact total

Details

CWE
CWE-189 CWE-190
Status published
Products (4)
microsoft/windows_7 (3 CPE variants)
microsoft/windows_server_2008 (3 CPE variants)
microsoft/windows_server_2008 r2 (2 CPE variants)
microsoft/windows_vista
Published Nov 08, 2011
Tracked Since Feb 18, 2026