Kaillera 0.86 Server DoS via Malformed UDP Packet
36Vexday Risk Score
Patch soon. It has a working public exploit.
ssvc Attendcvss 8.7epss 0.9%
from disclosure to weapon0 days
Published on NVDAug 20
metasploitJul 2
exploitation probability
0.9%top 42% of all CVEs
observed exploitation
nono source reports it
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.
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
Affected products
Kaillera Project · Server