CVEvulnerability
CVE-2011-10020
8.7 HIGH
Official page ↗
- Status
- Deferred
- Published
- 2025-08-20
- Last modified
- 2026-06-16
- Assigner
- [email protected]
- CVSS 4.0 ([email protected])
- 8.7 HIGH — 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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
- Weaknesses
- CWE-20
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.
Related
Weakness · CWE (1)
- CWE-20 Improper Input Validation weakness
References
- http://kaillera.com/ kaillera.com
- https://raw.githubusercontent.com/rapid7/metasploit-framework/master/modules/auxiliary/dos/windows/games/kaillera.rb raw.githubusercontent.com
- https://www.exploit-db.com/exploits/17460 www.exploit-db.com
- https://www.vulncheck.com/advisories/kaillera-server-dos-via-malformed-udp-packet www.vulncheck.com
- https://raw.githubusercontent.com/rapid7/metasploit-framework/master/modules/auxiliary/dos/windows/games/kaillera.rb raw.githubusercontent.com
- https://www.exploit-db.com/exploits/17460 www.exploit-db.com