CVE-2021-30481

Public Exploit

Description

Valve Steam through 2021-04-10, 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.

Category

8.0
CVSS
Severity: High
CVSS 3.1 •
CVSS 2.0 •
EPSS 10.56% Top 10%
Third-Party Advisory ycombinator.com Third-Party Advisory twitter.com Third-Party Advisory twitter.com Third-Party Advisory youtube.com
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://twitter.com/the_secret_club/status/1380868759129296900 third party advisory exploit
https://www.youtube.com/watch?v=rNQn--9xR1Q third party advisory exploit
https://news.ycombinator.com/item?id=26762170 issue tracking third party advisory
https://twitter.com/floesen_/status/1337107178096881666 third party advisory

Frequently Asked Questions

What is the severity of CVE-2021-30481?
CVE-2021-30481 has been scored as a high severity vulnerability.
How to fix CVE-2021-30481?
To fix CVE-2021-30481, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2021-30481 being actively exploited in the wild?
It is possible that CVE-2021-30481 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~11% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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