FreeRDP before 3.32.0 contains a double-free vulnerability in nsc_context_initialize_encode() that leaves dangling plane pointers after a partial buffer growth failure. Attackers using a crafted RDP client can negotiate NSCodec with a large desktop geometry to trigger allocation failure, crashing the server during context teardown.
Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.


Workaround

No workaround given by the vendor.

History

Thu, 15 Oct 2026 03:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Tue, 13 Oct 2026 12:15:00 +0000

Type Values Removed Values Added
Weaknesses CWE-1341
References
Metrics threat_severity

None

threat_severity

Moderate


Mon, 12 Oct 2026 16:30:00 +0000

Type Values Removed Values Added
Description FreeRDP before 3.32.0 contains a double-free vulnerability in nsc_context_initialize_encode() that leaves dangling plane pointers after a partial buffer growth failure. Attackers using a crafted RDP client can negotiate NSCodec with a large desktop geometry to trigger allocation failure, crashing the server during context teardown.
Title FreeRDP before 3.32.0 Double Free via NSCodec plane growth failure
First Time appeared Freerdp
Freerdp freerdp
Weaknesses CWE-415
CPEs cpe:2.3:a:freerdp:freerdp:*:*:*:*:*:*:*:*
Vendors & Products Freerdp
Freerdp freerdp
References
Metrics cvssV3_1

{'score': 5.9, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H'}

cvssV4_0

{'score': 8.2, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N'}


Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published:

Updated: 2026-10-15T02:32:16.005Z

Reserved: 2026-10-12T14:10:14.199Z

Link: CVE-2026-109257

cve-icon Vulnrichment

Updated: 2026-10-15T02:32:10.977Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-10-12T17:17:17.280

Modified: 2026-10-15T03:17:07.483

Link: CVE-2026-109257

cve-icon Redhat

Severity : Moderate

Publid Date: 2026-10-12T16:04:28Z

Links: CVE-2026-109257 - Bugzilla

cve-icon OpenCVE Enrichment

Updated: 2026-10-13T13:30:17Z

Weaknesses