SEPTEMBER 16, 2026
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Case File

CVE-2026-91947

HIGH · CVSS 7.5 EPSS 0.30% Public Exploit

Source: NVD + CISA KEV + EPSS · Published 2026-09-15 · Last synced 2026-09-16

CyberRota Analysis

AI-Generated

FreeRDP server versions prior to 3.31.0 are vulnerable to a use-after-free flaw in the DRDYNVC parser, which can be exploited by authenticated clients to trigger a heap-use-after-free condition. This vulnerability allows attackers to dereference freed channel objects, potentially leading to arbitrary code execution or a denial of service. Organizations using affected FreeRDP server versions should prioritize patching this vulnerability to mitigate the associated risks.

Public Exploit Signal

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

GitHub PoC Links

Note: these links are listed for security research and verification purposes only.

CVE
CVE-2026-91947
Severity
HIGH
CVSS
7.5
EPSS
0.30%

Original NVD Description

FreeRDP server versions before 3.31.0 contain a use-after-free vulnerability in the DRDYNVC parser that dereferences a channel pointer after releasing the synchronization lock. Authenticated clients can race AUDIN channel closure messages against DRDYNVC data parsing to trigger heap-use-after-free when accessing freed channel objects.