CVE-2026-91945
FreeRDP before 3.31.0 Out-of-bounds Read via Smartcard ATR
CVSS Score
6.5
EPSS Score
0.0%
EPSS Percentile
0th
FreeRDP versions before 3.31.0 contain an out-of-bounds read vulnerability in smartcard response decoders that fail to validate ATR length fields against fixed inline arrays. Authenticated RDP clients can send oversized ATR lengths in PAKID_CORE_DEVICE_IOCOMPLETION responses to trigger reads past stack or heap objects, causing process termination.
| CWE | CWE-125 |
| Vendor | freerdp |
| Product | freerdp |
| Published | Sep 15, 2026 |
| Last Updated | Sep 15, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High
Affected Versions
FreeRDP / FreeRDP
3.28.0 < 3.31.0
References
Credits
🔍 sam4k