High severity8.8NVD Advisory· Published Dec 14, 2023· Updated Jun 17, 2026
CVE-2023-42799
CVE-2023-42799
Description
Moonlight-common-c contains the core GameStream client code shared between Moonlight clients. Moonlight-common-c is vulnerable to buffer overflow starting in commit 50c0a51b10ecc5b3415ea78c21d96d679e2288f9 due to unmitigated usage of unsafe C functions and improper bounds checking. A malicious game streaming server could exploit a buffer overflow vulnerability to crash a moonlight client, or achieve remote code execution (RCE) on the client (with insufficient exploit mitigations or if mitigations can be bypassed). The bug was addressed in commit 02b7742f4d19631024bd766bd2bb76715780004e.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
2starting in commit 50c0a51b10ecc5b3415ea78c21d96d679e2288f9, addressed in commit 02b7742f4d19631024bd766bd2bb76715780004e+ 1 more
- (no CPE)range: starting in commit 50c0a51b10ecc5b3415ea78c21d96d679e2288f9, addressed in commit 02b7742f4d19631024bd766bd2bb76715780004e
- (no CPE)range: >= 50c0a51b10ecc5b3415ea78c21d96d679e2288f9, < 02b7742f4d19631024bd766bd2bb76715780004e
Patches
Vulnerability mechanics
References
3- github.com/moonlight-stream/moonlight-common-c/commit/02b7742f4d19631024bd766bd2bb76715780004envdPatch
- github.com/moonlight-stream/moonlight-common-c/commit/50c0a51b10ecc5b3415ea78c21d96d679e2288f9nvdPatch
- github.com/moonlight-stream/moonlight-common-c/security/advisories/GHSA-r8cf-45f4-vf8mnvdExploitThird Party Advisory
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