CVE-2026-91951
FreeRDP 3.14.0 through 3.30.0 Out-of-bounds Write via urbdrc
CVSS Score
6.5
EPSS Score
0.0%
EPSS Percentile
0th
FreeRDP versions before 3.31.0 contain an out-of-bounds write vulnerability in the urbdrc client channel's urb_send_current_frame_number_result() function. A malicious RDP server can send a crafted 28-byte USB redirection message to trigger a 4-byte write past the allocated 16-byte buffer, causing denial of service when verbose asserts are enabled.
| CWE | CWE-617 |
| Vendor | freerdp |
| Product | freerdp |
| Published | Sep 15, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High
Affected Versions
FreeRDP / FreeRDP
3.14.0 < 3.31.0
References
Credits
🔍 dutchypoo