CVE-2026-114045
FreeRDP before 3.32.1 Heap Buffer Overflow via rdpsnd_server_select_format
CVSS Score
8.8
EPSS Score
0.0%
EPSS Percentile
0th
FreeRDP before 3.32.1 contains a heap-based buffer overflow in the server-side rdpsnd channel because an integer wraparound in rdpsnd_server_select_format() DVI_ADPCM block-alignment arithmetic bypasses validation. A malicious RDP client can send two SNDC_FORMATS PDUs with an nBlockAlign too small for nChannels, causing an unbounded heap write during server audio playback, potentially enabling code execution.
| CWE | CWE-122 |
| Vendor | freerdp |
| Product | freerdp |
| Published | Oct 21, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
Affected Versions
FreeRDP / FreeRDP
0 < 3.32.1
References
Credits
🔍 HEXER365