VULNERABILITY INTELLIGENCE
CVE-2021-30481
CVSS score8 HIGH
EPSS probability3.53%
CISA KEVNot currently listed
Published2021-04-10
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:H/I:H/A:H
Description
Valve 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 that occurs for a Steam invite after one click.
Weakness classification
- nvd@nist.gov: CWE-120
Primary references
- cve@mitre.org — Issue Tracking, Third Party Advisory
- cve@mitre.org — Third Party Advisory
- cve@mitre.org — Exploit, Third Party Advisory
- cve@mitre.org — Exploit, Third Party Advisory
- af854a3a-2127-422b-91ae-364da2661108 — Issue Tracking, Third Party Advisory
- af854a3a-2127-422b-91ae-364da2661108 — Third Party Advisory
- af854a3a-2127-422b-91ae-364da2661108 — Exploit, Third Party Advisory
- af854a3a-2127-422b-91ae-364da2661108 — Exploit, Third Party Advisory