CVSS v3
9
CRITICAL
EPSS Score
11.0%
exploit probability
CISA KEV
No
known exploited
Exploitation
—
SSVC status
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.
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.
Active exploitation of CVE-2021-30481 has not been confirmed. The EPSS score is 11.0%, indicating the estimated probability of exploitation in the next 30 days.
CVE-2021-30481 has a CVSS v3 base score of 9 (CRITICAL severity).
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Ranked by exploit probability (EPSS).