Epic Games Unreal Engine 226f through 436 does not validate the challenge key, which allows remote attackers to exhaust the player limit by joining the game multiple times.
| Software | From | Fixed in |
|---|---|---|
| epic_games / unreal_engine | 436 | 436.x |
| epic_games / unreal_engine | 226f | 226f.x |
| epic_games / unreal_engine | 433 | 433.x |