CVE-2019-14743 is a privilege escalation vulnerability affecting the Valve Steam Client for Windows, specifically versions through August 7, 2019. It stems from overly permissive registry key permissions, allowing local users to gain NT AUTHORITY\SYSTEM privileges. With a CVSS score of 6.6 (Medium), this vulnerability is easily exploitable locally with low privileges and no user interaction, leading to full compromise of confidentiality, integrity, and availability. While not listed in CISA KEV and lacking public exploit code, it garnered significant community discussion and media attention, including reports of a fix bypass.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
<= 2019-08-07CPE matchmatch criteria | cpe:2.3:a:valvesoftware:steam_client:*:*:*:*:*:*:*:* |
CVSS version used by this source: 3.0
CVSS:3.0/AV:P/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.
The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.
Remediation records are not available for this CVE.