Unrated severityNVD Advisory· Published Apr 10, 2021· Updated Nov 3, 2025

CVE-2021-30481

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.

Affected products

Valve/Steamdescription
Valve Software/Steamllm-fuzzy
Range: <2021-04-17

Patches

No patches discovered yet.

Vulnerability mechanics

AI mechanics synthesis has not run for this CVE yet.

References

news.ycombinator.com/itemmitre
twitter.com/floesen_/status/1337107178096881666mitre
twitter.com/the_secret_club/status/1380868759129296900mitre
www.youtube.com/watchmitre

News mentions

No linked articles in our index yet.

cvss	0.000
epss	0.006
exploit	0.000
kev	0.000
patch	0.000
ransomware	0.000