What’s Vulnerable › Vulnerabilities

CVE-2019-14743

• Severity: medium (CVSS 6.6 v3.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.6% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2019-08-07 · updated 2026-06-17
• Weakness: CWE-732

Description

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.

Affected products

• Valvesoftware Steam Client: through 2019-08-07

References

• https://amonitoring.ru/article/steamclient-0day/
• https://github.com/alexanderbittner/steam-privesc/
• https://habr.com/ru/company/pm/blog/462479/
• https://amonitoring.ru/article/steamclient-0day/
• https://github.com/alexanderbittner/steam-privesc/
• https://habr.com/ru/company/pm/blog/462479/

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