Valvesoftware

7 CVEs across 10 Valvesoftware products. Browse Valvesoftware vulnerabilities, severities, and proof-of-concept exploits.

Valvesoftware products with known CVEs

ProductCVEs
Steam Client9
Dota 25
Game Networking Sockets4
Counter-Strike3
Counter-Strike\2
Steam Link2
Steam Link Firmware2
Steamos2
Half-Life1
Source1
Valvesoftware CVEs — newest first
CVESeverityScorePublishedSummary
CVE-2023-38312High7.52023-10-15A directory traversal vulnerability in Valve Counter-Strike 8684 allows a client (with remote control access to a game server) to read arbitrary files from the…
CVE-2023-35855Critical9.82023-06-19A 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 co…
CVE-2023-30382High7.32023-05-23A buffer overflow in the component hl.exe of Valve Half-Life up to 5433873 allows attackers to execute arbitrary code and escalate privileges by supplying craf…
CVE-2021-30481High8.02021-04-10Valve Steam before 2021-04-17, when a Source engine game is installed, allows remote authenticated users to execute arbitrary code because of a buffer overflow…
CVE-2020-6017Critical9.82020-12-03Valve's Game Networking Sockets prior to version v1.2.0 improperly handles long unreliable segments in function SNP_ReceiveUnreliableSegment() when configured…
CVE-2020-6018Critical9.82020-12-02Valve's Game Networking Sockets prior to version v1.2.0 improperly handles long encrypted messages in function AES_GCM_DecryptContext::Decrypt() when compiled…
CVE-2020-6016Critical9.82020-11-18Valve's Game Networking Sockets prior to version v1.2.0 improperly handles unreliable segments with negative offsets in function SNP_ReceiveUnreliableSegment()…
CVE-2020-6019High7.52020-11-13Valve's Game Networking Sockets prior to version v1.2.0 improperly handles inlined statistics messages in function CConnectionTransportUDPBase::Received_Data()…
CVE-2020-15530High7.82020-07-05An issue was discovered in Valve Steam Client 2.10.91.91. The installer allows local users to gain NT AUTHORITY\SYSTEM privileges because some parts of %PROGRA…
CVE-2020-12242High7.82020-04-27Valve Source allows local users to gain privileges by writing to the /tmp/hl2_relaunch file, which is later executed in the context of a different user account.
CVE-2020-9005High7.82020-02-17meshsystem.dll in Valve Dota 2 through 2020-02-17 allows remote attackers to achieve code execution or denial of service by creating a gaming server with a cra…
CVE-2020-7952High7.82020-01-27rendersystemdx9.dll in Valve Dota 2 before 7.23f allows remote attackers to achieve code execution or denial of service by creating a gaming server and invitin…
CVE-2020-7951High7.82020-01-27meshsystem.dll in Valve Dota 2 before 7.23e allows remote attackers to achieve code execution or denial of service by creating a gaming server and inviting a v…
CVE-2020-7950High7.82020-01-27meshsystem.dll in Valve Dota 2 before 7.23f allows remote attackers to achieve code execution or denial of service by creating a gaming server and inviting a v…
CVE-2020-7949High7.82020-01-27schemasystem.dll in Valve Dota 2 before 7.23f allows remote attackers to achieve code execution or denial of service by creating a gaming server and inviting a…
CVE-2019-17180High7.82019-10-04Valve Steam Client before 2019-09-12 allows placing or appending partially controlled filesystem content, as demonstrated by file modifications on Windows in t…
CVE-2019-15943High8.82019-09-19vphysics.dll in Counter-Strike: Global Offensive before 1.37.1.1 allows remote attackers to achieve code execution or denial of service by creating a gaming se…
CVE-2019-15944Medium5.32019-09-05In Counter-Strike: Global Offensive before 8/29/2019, community game servers can display unsafe HTML in a disconnection message.
CVE-2019-15316High7.02019-08-21Valve Steam Client for Windows through 2019-08-20 has weak folder permissions, leading to privilege escalation (to NT AUTHORITY\SYSTEM) via crafted use of Crea…
CVE-2019-15315High7.82019-08-21Valve Steam Client for Windows through 2019-08-16 allows privilege escalation (to NT AUTHORITY\SYSTEM) because local users can replace the current versions of…
CVE-2019-14743Medium6.62019-08-07In Valve Steam Client for Windows through 2019-08-07, HKLM\SOFTWARE\Wow6432Node\Valve\Steam has explicit "Full control" for the Users group, which allows local…
CVE-2018-12270Medium5.42019-05-20In Valve Steam 1528829181 BETA, it is possible to perform a homograph / homoglyph attack to create fake URLs in the client, which may trick users into visiting…
CVE-2017-17878Critical9.82017-12-27An issue was discovered in Valve Steam Link build 643. Root passwords longer than 8 characters are truncated because of the default use of DES (aka the CONFIG_…
CVE-2017-17877Critical9.82017-12-27An issue was discovered in Valve Steam Link build 643. When the SSH daemon is enabled for local development, the device is publicly available via IPv6 TCP port…
CVE-2016-5237Medium4.82017-01-23Valve Steam 3.42.16.13 uses weak permissions for the files in the Steam program directory, which allows local users to modify the files and possibly gain privi…
CVE-2015-79852015-11-24Valve Steam 2.10.91.91 uses weak permissions (Users: read and write) for the Install folder, which allows local users to gain privileges via a Trojan horse ste…
CVE-2015-40162015-05-20The client detection protocol in Valve Steam allows remote attackers to cause a denial of service (process crash) via a crafted response to a broadcast packet.
CVE-2013-71282013-12-17Valve Bug Reporter in the valve-bugreporter package 2.10+bsos1 in Valve SteamOS Beta stores cleartext credentials in a .valve-bugreporter.cfg file upon a Remem…
CVE-2008-72032009-09-11Valve Software Half-Life Counter-Strike 1.6 allows remote attackers to cause a denial of service (crash) via multiple crafted login packets.