SEPTEMBER 17, 2026
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Case File

CVE-2026-91945

MEDIUM · CVSS 6.5 EPSS 0.57% Public Exploit

Source: NVD + CISA KEV + EPSS · Published 2026-09-15 · Last synced 2026-09-17

CyberRota Analysis

AI-Generated

FreeRDP versions prior to 3.31.0 are susceptible to an out-of-bounds read vulnerability in their smartcard response decoders, which do not properly validate ATR length fields. This flaw allows authenticated RDP clients to exploit oversized ATR lengths, potentially leading to process termination through unauthorized memory access. Organizations utilizing FreeRDP should prioritize patching to mitigate the risk of service disruption.

Public Exploit Signal

A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.

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CVE
CVE-2026-91945
Severity
MEDIUM
CVSS
6.5
EPSS
0.57%

Original NVD Description

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.