CVE-2026-114042

MEDIUM 6.5

FreeRDP 3.32.0 Use-After-Free via drdynvc Virtual Channel PDU

CVSS Score

6.5

EPSS Score

0.0%

EPSS Percentile

0th

FreeRDP 3.32.0 contains a use-after-free vulnerability in the drdynvc channel that frees a pool-owned stream with the owned-stream deallocator when totalLength is smaller than the chunk size. A malicious RDP server can send a single well-formed Virtual Channel PDU to trigger the free and crash the client during teardown.

CWE	CWE-416
Vendor	freerdp
Product	freerdp
Published	Oct 21, 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

3.32.0 < 3.32.1

References

NVD ↗ CVE.org ↗ EPSS Data ↗

github.com: https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-5xjc-c64q-m8r6 vulncheck.com: https://www.vulncheck.com/advisories/freerdp-3.32.0-use-after-free-via-drdynvc-virtual-channel-pdu

Credits

🔍 Michael-JRead