CVE-2021-30481 HIGH

CVE-2021-30481

Vendor N/A
Product n/a
Published April 10, 2021
Last update November 3, 2025
View on NVD All CVEs

CVSS base score

8.0/10
Attack vector Network
Attack complexity High
Privileges required Low
User interaction Required
Confidentiality High
Integrity High

CVSS vector

CVSS:3.1/AC:H/AV:N/A:H/C:H/I:H/PR:L/S:C/UI:R

What the vulnerability does

01Description

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.

Key dates

02Disclosure timeline

April 10, 2021 CVE published
November 3, 2025 Record updated