CVE-2011-2013 EXPLOIT
9.8
CRITICAL · CVSS 3.1 · EPSS 33.7% (pctl 98)
Patch early
A public exploit exists.
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."
Scoring
| CVSS | 9.8 (CRITICAL, v3.1) |
|---|---|
| Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| EPSS | 33.75% — more likely to be exploited than 98% of all CVEs |
| Weakness | CWE-189 |
| On CISA KEV | no |
| Public exploit | yes |
| Published | 2011-11-08 |
| Last modified | 2026-06-16 |
Affected (3)
| Vendor | Product |
|---|---|
| microsoft | windows 7 |
| microsoft | windows server 2008 |
| microsoft | windows vista |
Public exploits
| Source | Title | Date |
|---|---|---|
| exploit-db | Microsoft Windows - TCP/IP Stack Reference Counter Integer Overflow (MS11-083) | 2011-11-08 |
References
- http://www.securitytracker.com/id?1026290
- https://docs.microsoft.com/en-us/security-updates/securitybulletins/2011/ms11-083
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A13877
- http://www.securitytracker.com/id?1026290
- https://docs.microsoft.com/en-us/security-updates/securitybulletins/2011/ms11-083
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A13877
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