Aggregates CVE and security vulnerability intelligence across all valvesoftware-related products, including CVSS, EPSS, publication dates, and vulnerability intelligence data.
Historical issues mainly involve vendor risk path handling and vendor risk input validation and related problems; some flaws may lead to vendor impact application crash, affecting vendor surface software deployment scenarios.
| CVE | Summary | Source | Max CVSS | EPSS % | Published | Updated |
|---|---|---|---|---|---|---|
| CVE-2019-15315 | Valve Steam Client for Windows through 2019-08-16 allows privilege escalation (to NT AUTHORITY\SYSTEM) because local users can replace the current versions of SteamService.exe and SteamService.dll with older versions that lack the CVE-2019-14743 patch. | [email protected] | 7.8 | 0.39% | 2019-08-21 | 2026-06-16 |
| CVE-2019-14743 | In 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 users to gain NT AUTHORITY\SYSTEM access. | [email protected] | 6.6 | 0.59% | 2019-08-07 | 2026-06-16 |
| CVE-2018-12270 | In 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 unintended web sites. | [email protected] | 5.4 | 0.89% | 2019-05-20 | 2026-06-16 |
| CVE-2017-17878 | An 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_FEATURE_DEFAULT_PASSWD_ALGO="des" setting). | [email protected] | 9.8 | 1.60% | 2017-12-27 | 2026-06-16 |
| CVE-2017-17877 | An 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 22 over the internet (with stateless address autoconfiguration) by default, which makes it easier for remote attackers to obtain access by guessing 24 bits of the MAC address and attempting a root login. This can be exploited in conjunction with CVE-2017-17878. | [email protected] | 9.8 | 4.10% | 2017-12-27 | 2026-06-16 |
| CVE-2016-5237 | Valve 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 privileges as demonstrated by a Trojan horse Steam.exe file. | [email protected] | 4.8 | 0.78% | 2017-01-23 | 2026-06-16 |
| CVE-2015-7985 | Valve 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 steam.exe file. | [email protected] | 7.2 | 0.99% | 2015-11-24 | 2026-06-16 |
| CVE-2015-4016 | The 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. | [email protected] | 5.0 | 2.99% | 2015-05-20 | 2026-06-16 |
| CVE-2013-7128 | Valve 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 Remember Credentials action, which allows local users to obtain sensitive information by reading this file. | [email protected] | 2.1 | 0.32% | 2013-12-17 | 2026-06-16 |
| CVE-2008-7203 | Valve Software Half-Life Counter-Strike 1.6 allows remote attackers to cause a denial of service (crash) via multiple crafted login packets. | [email protected] | 5.0 | 2.61% | 2009-09-11 | 2026-06-16 |