CVE-2023-42800
highpriority · track · 36EPSS 0.019 · 79 %ileEUUSEPSS · scored 2026-10-27
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 24750d4b748fefa03d09fcfd6d45056faca354e0.
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode
ssvc
A stakeholder decision — act, attend, or track — from exploitation and impact.
weaknesses
The CWE weakness classes this flaw belongs to.
affected products (10)
Products and version ranges known to be affected.
- moonlight-stream moonlight-common-c50c0a51b10ecc5b3415ea78c21d96d679e2288f9, → 24750d4b748f…enisa_euvdEU
- moonlight-stream moonlight embedded= 2.6.0nvdUScpe:2.3:a:moonlight-stream:moonlight_embedded:*:*:*:*:*:*:*:*
- moonlight-stream moonlight switch0.13 → 0.13.3nvdUScpe:2.3:a:moonlight-stream:moonlight_switch:*:*:*:*:*:*:*:*
- moonlight-stream moonlight tv1.5.4 → 1.5.27nvdUScpe:2.3:a:moonlight-stream:moonlight_tv:*:*:*:*:*:*:*:*
- moonlight-stream moonlight vita0.9.2 → 0.9.3nvdUScpe:2.3:a:moonlight-stream:moonlight_vita:*:*:*:*:*:*:*:*
- moonlight-stream moonlight xbox1.12.0 → 1.14.40nvdUScpe:2.3:a:moonlight-stream:moonlight_xbox:*:*:*:*:*:*:*:*
- moonlight-stream moonlight-common-c2022-11-04 → 2023-10-06nvdUScpe:2.3:a:moonlight-stream:moonlight-common-c:*:*:*:*:*:*:*:*
also known as (2)
Other names and identifiers for this entity.
sources
Which sources assert this record, and when.
references (13)
External citations — patches, advisories, analysis.
- https://cxsecurity.com/cveshow/CVE-2023-42800/cnnvd
- https://github.com/moonlight-stream/moonlight-common-c/blob/2bb026c763fc18807d7e4a93f918054c488f84e1/src/RtspConnection.c#L796cnnvd
- https://github.com/moonlight-stream/moonlight-common-c/commit/24750d4b748fefa03d09fcfd6d45056faca354e0cnnvd
- https://github.com/moonlight-stream/moonlight-common-c/commit/50c0a51b10ecc5b3415ea78c21d96d679e2288f9cnnvd
- https://github.com/moonlight-stream/moonlight-common-c/security/advisories/GHSA-4927-23jw-rq62cnnvd
- https://github.com/moonlight-stream/moonlight-common-c/blob/2bb026c763fc18807d7e4a93f918054c488f84e1/src/RtspConnection.c#L796enisa_euvd
- https://github.com/moonlight-stream/moonlight-common-c/commit/24750d4b748fefa03d09fcfd6d45056faca354e0enisa_euvd
- https://github.com/moonlight-stream/moonlight-common-c/commit/50c0a51b10ecc5b3415ea78c21d96d679e2288f9enisa_euvd
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