CVE-2011-10020
Kaillera 0.86 Server DoS via Malformed UDP Packet
CVSS Score
0.0
EPSS Score
0.0%
EPSS Percentile
0th
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.
| CWE | CWE-20 |
| Vendor | kaillera project |
| Product | server |
| Published | Aug 20, 2025 |
| Last Updated | Apr 7, 2026 |
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Affected Versions
Kaillera Project / Server
* ≤ 0.86
References
raw.githubusercontent.com: https://raw.githubusercontent.com/rapid7/metasploit-framework/master/modules/auxiliary/dos/windows/games/kaillera.rb exploit-db.com: https://www.exploit-db.com/exploits/17460 kaillera.com: http://kaillera.com/ vulncheck.com: https://www.vulncheck.com/advisories/kaillera-server-dos-via-malformed-udp-packet
Credits
Sil3nt_Dre4m