CVE-2023-42800

Name of the Vulnerable Software and Affected Versions Moonlight-common-c versions prior to the version containing commit 24750d4b748fefa03d09fcfd6d45056faca354e0

Description Moonlight-common-c contains the core GameStream client code shared between Moonlight clients. It is vulnerable to buffer overflow due to unmitigated usage of unsafe C functions and improper bounds checking. A malicious game streaming server could exploit this issue to crash a Moonlight client or achieve remote code execution (RCE) on the client, especially if exploit mitigations are insufficient or can be bypassed.

Recommendations For Moonlight-common-c versions prior to the version containing commit 24750d4b748fefa03d09fcfd6d45056faca354e0, update to a version that includes the fix from commit 24750d4b748fefa03d09fcfd6d45056faca354e0 to resolve the buffer overflow vulnerability. As a temporary workaround, consider restricting access to the Moonlight client from untrusted game streaming servers to minimize the risk of exploitation.