CVE-2011-2013 Integer overflow in n/a

Critical 9.8 Published Updated

Remote attackers can execute arbitrary code on Windows systems by sending crafted UDP packets to closed ports due to an integer overflow in the TCP/IP stack.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
Not needed
Fix
None listed

What is CVE-2011-2013?

CVE-2011-2013 is a critical vulnerability in Microsoft Windows 7, published on 8 Nov 2011. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official 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."

Weakness: CWE-189, CWE-190

Which versions are affected by CVE-2011-2013?

It affects 3 products.

Products include Microsoft Windows 7, Microsoft Windows Server 2008, Microsoft Windows Vista.

How do I fix CVE-2011-2013?

No fix has been published for CVE-2011-2013 yet. Limit exposure of the affected software until one is available.

Is CVE-2011-2013 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2011-2013 exists.

Public exploit code: 1 Exploit-DB entry.

All Microsoft Windows 7 vulnerabilities

Sources

Also known as GHSA-q323-hhw8-233j.

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