CVE-2026-63652 Affecting freerdp-libs-debuginfo package, versions <2:3.31.0-1.amzn2023


Severity

Recommended
high

Based on Amazon Linux security rating.

Threat Intelligence

EPSS
0.58% (46th percentile)

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  • Snyk IDSNYK-AMZN2023-FREERDPLIBSDEBUGINFO-19816570
  • published15 Sept 2026
  • disclosed19 Aug 2026

Introduced: 19 Aug 2026

CVE-2026-63652  (opens in a new tab)
CWE-1341  (opens in a new tab)

How to fix?

Upgrade Amazon-Linux:2023 freerdp-libs-debuginfo to version 2:3.31.0-1.amzn2023 or higher.
This issue was patched in ALAS2023-2026-2142.

NVD Description

Note: Versions mentioned in the description apply only to the upstream freerdp-libs-debuginfo package and not the freerdp-libs-debuginfo package as distributed by Amazon-Linux. See How to fix? for Amazon-Linux:2023 relevant fixed versions and status.

FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to 3.28.0, rdpsnd_server_recv_formats in channels/rdpsnd/server/rdpsnd_main.c frees context->client_formats on a malformed Client Audio Formats PDU without clearing the owning pointer or num_client_formats. An authenticated RDP client can trigger an error such as a cbSize larger than the remaining record, leave the dangling pointer in the server context, and cause rdpsnd_server_context_free to free the same allocation again at session teardown. This reliably terminates the server and can create allocator-dependent heap corruption. This issue is fixed in version 3.28.0.

CVSS Base Scores

version 3.1