Vulnerabilities > Valvesoftware > Critical

DATE CVE VULNERABILITY TITLE RISK
2023-06-19 CVE-2023-35855 Classic Buffer Overflow vulnerability in Valvesoftware Counter-Strike 8684
A buffer overflow in Counter-Strike through 8684 allows a game server to execute arbitrary code on a remote client's machine by modifying the lservercfgfile console variable.
network
low complexity
valvesoftware CWE-120
critical
9.8
2021-04-10 CVE-2021-30481 Classic Buffer Overflow vulnerability in Valvesoftware Steam Client
Valve Steam through 2021-04-10, when a Source engine game is installed, allows remote authenticated users to execute arbitrary code because of a buffer overflow that occurs for a Steam invite after one click.
network
low complexity
valvesoftware CWE-120
critical
9.0
2020-12-03 CVE-2020-6017 Out-of-bounds Write vulnerability in Valvesoftware Game Networking Sockets 1.0.0/1.1.0
Valve's Game Networking Sockets prior to version v1.2.0 improperly handles long unreliable segments in function SNP_ReceiveUnreliableSegment() when configured to support plain-text messages, leading to a Heap-Based Buffer Overflow and resulting in a memory corruption and possibly even a remote code execution.
network
low complexity
valvesoftware CWE-787
critical
9.8
2020-12-02 CVE-2020-6018 Out-of-bounds Write vulnerability in Valvesoftware Game Networking Sockets 1.0.0/1.1.0
Valve's Game Networking Sockets prior to version v1.2.0 improperly handles long encrypted messages in function AES_GCM_DecryptContext::Decrypt() when compiled using libsodium, leading to a Stack-Based Buffer Overflow and resulting in a memory corruption and possibly even a remote code execution.
network
low complexity
valvesoftware CWE-787
critical
9.8
2020-11-18 CVE-2020-6016 Out-of-bounds Write vulnerability in Valvesoftware Game Networking Sockets 1.0.0/1.1.0
Valve's Game Networking Sockets prior to version v1.2.0 improperly handles unreliable segments with negative offsets in function SNP_ReceiveUnreliableSegment(), leading to a Heap-Based Buffer Underflow and a free() of memory not from the heap, resulting in a memory corruption and probably even a remote code execution.
network
low complexity
valvesoftware CWE-787
critical
9.8
2017-12-27 CVE-2017-17878 Use of a Broken or Risky Cryptographic Algorithm vulnerability in Valvesoftware Steam Link Firmware
An issue was discovered in Valve Steam Link build 643.
network
low complexity
valvesoftware CWE-327
critical
9.8
2017-12-27 CVE-2017-17877 Unspecified vulnerability in Valvesoftware Steam Link Firmware
An issue was discovered in Valve Steam Link build 643.
network
low complexity
valvesoftware
critical
9.8