CVE-2020-6019

Valve's Game Networking Sockets prior to version v1.2.0 improperly handles inlined statistics messages in function CConnectionTransportUDPBase::Received_Data(), leading to an exception thrown from libprotobuf and resulting in a crash.

• CWE-248

• https://github.com/ValveSoftware/GameNetworkingSockets/commit/d944a10808891d202bb1d5e1998de6e0423af678Patch, Third Party Advisory
• https://research.checkpoint.com/2020/game-on-finding-vulnerabilities-in-valves-steam-sockets/Exploit, Third Party Advisory
• https://github.com/ValveSoftware/GameNetworkingSockets/commit/d944a10808891d202bb1d5e1998de6e0423af678Patch, Third Party Advisory
• https://research.checkpoint.com/2020/game-on-finding-vulnerabilities-in-valves-steam-sockets/Exploit, Third Party Advisory

Published

Nov 13, 2020

Last Modified

Jun 17, 2026

Status

Modified

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
• Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
• PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
• AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.

• CVE-2020-6013ZoneAlarm Firewall and Antivirus products before version 15.…8.8
• CVE-2020-6014Check Point Endpoint Security Client for Windows, with Anti-…6.5
• CVE-2020-6015Check Point Endpoint Security for Windows before E84.10 can …5.5
• CVE-2020-6016Valve's Game Networking Sockets prior to version v1.2.0 impr…9.8
• CVE-2020-6017Valve's Game Networking Sockets prior to version v1.2.0 impr…9.8
• CVE-2020-6018Valve's Game Networking Sockets prior to version v1.2.0 impr…9.8
• CVE-2020-6020Check Point Security Management's Internal CA web management…6.4
• CVE-2020-6021Check Point Endpoint Security Client for Windows before vers…7.8
• CVE-2020-6022Check Point ZoneAlarm before version 15.8.139.18543 allows a…5.5
• CVE-2020-6023Check Point ZoneAlarm before version 15.8.139.18543 allows a…7.8
• CVE-2020-6024Check Point SmartConsole before R80.10 Build 185, R80.20 Bui…7.8
• CVE-2020-6058An exploitable out-of-bounds read vulnerability exists in th…9.1