FreeRDP 2.0.0 before 3.32.0, when built with WITH_LAME=ON and WITH_DSP_FFMPEG=OFF, has a heap-based buffer overflow in freerdp_dsp_decode_mp3 because the right-channel PCM pointer is offset by a byte count treated as short elements. A malicious RDP server can send MP3 audio over rdpsnd so decoded samples cross the heap allocation, crashing the client.
Fix
Patch, vendor advisory and mitigation references on NVD 2
- https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-52xc-5973-w5vv Exploit, Vendor Advisory
- https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-52xc-5973-w5vv Exploit, Vendor Advisory
Every line above is quoted from NVD, CISA, Microsoft, the vendor's own advisory or DISA; nothing is generated.
Change history 4
- Cpes+1 CPE criteria (now 1)NVD modified 2026-10-23 20:45
- StatusUndergoing Analysis → AnalyzedNVD modified 2026-10-23 20:45
- StatusReceived → Undergoing AnalysisNVD modified 2026-10-15 15:54
- First seenCVSS 6.1NVD modified 2026-10-14 23:17
Affected (CPE criteria) 1
cpe:2.3:a:freerdp:freerdp:*:*:*:*:*:*:*:*
References 3
- https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-52xc-5973-w5vv Exploit, Vendor Advisory
- https://www.vulncheck.com/advisories/freerdp-2.0.0-before-3.32.0-heap-buffer-overflow-via-mp3-audio-decoding Third Party Advisory
- https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-52xc-5973-w5vv Exploit, Vendor Advisory