What is GHSA-392f-f2j5-97qm?

GHSA-392f-f2j5-97qm is a security advisory published by GitHub Security Advisories with High severity. FreeRDP before 3.22.0 contains a use-after-free vulnerability in dvcman_channel_close and...

Which CVE IDs does GHSA-392f-f2j5-97qm cover?

GHSA-392f-f2j5-97qm covers the following CVE IDs: CVE-2026-56297. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of GHSA-392f-f2j5-97qm?

GHSA-392f-f2j5-97qm has a CVSS v3 base score of 7.0, published by GitHub Security Advisories.

GHSA-392f-f2j5-97qmHighCVSS 7.0

FreeRDP before 3.22.0 contains a use-after-free vulnerability in dvcman_channel_close and...

Vendor

GitHub Security Advisories

Published

July 8, 2026

Last Modified

July 8, 2026

🔗 CVE IDs covered (1)

CVE-2026-56297 →

📋 Description

FreeRDP before 3.22.0 contains a use-after-free vulnerability in dvcman_channel_close and dvcman_call_on_receive due to improper synchronization of channel_callback access. A malicious RDP server can trigger a race condition by sending DYNVC_DATA and DYNVC_CLOSE messages concurrently, causing heap-use-after-free in the drdynvc client thread and potentially enabling remote code execution or denial of service.

🔗 References (4)

https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-3mv2-5q57-2v8h
https://nvd.nist.gov/vuln/detail/CVE-2026-56297
https://www.vulncheck.com/advisories/freerdp-use-after-free-via-race-condition-in-drdynvc-channel-callback
https://github.com/advisories/GHSA-392f-f2j5-97qm