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CVE-2011-10020 Detail

  Unsupported When Assigned   

Description

Kaillera Server version 0.86 is vulnerable to a denial-of-service condition triggered by sending a malformed UDP packet after the initial handshake. Once a client sends a valid HELLO0.83 packet and receives a response, any subsequent malformed packet causes the server to crash and become unresponsive. This flaw stems from improper input validation in the server’s UDP packet handler, allowing unauthenticated remote attackers to disrupt service availability.


Metrics

NVD enrichment efforts reference publicly available information to associate vector strings. CVSS information contributed by other sources is also displayed.
CVSS 4.0 Severity and Vector Strings:

NIST CVSS score
NIST: NVD
N/A
NVD assessment not yet provided.

Nist CVSS score does not match with CNA score
CNA:  VulnCheck
CVSS-B 8.7 HIGH
Vector:  CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

References to Advisories, Solutions, and Tools

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URL Source(s) Tag(s)
http://kaillera.com/ VulnCheck
https://raw.githubusercontent.com/rapid7/metasploit-framework/master/modules/auxiliary/dos/windows/games/kaillera.rb CISA-ADP, VulnCheck
https://www.exploit-db.com/exploits/17460 CISA-ADP, VulnCheck
https://www.vulncheck.com/advisories/kaillera-server-dos-via-malformed-udp-packet VulnCheck

Weakness Enumeration

CWE-ID CWE Name Source
CWE-20 Improper Input Validation VulnCheck  

Change History

2 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2011-10020
NVD Published Date:
08/20/2025
NVD Last Modified:
08/22/2025
Source:
VulnCheck