FreeRDP before 3.31.0 contains a heap out-of-bounds read vulnerability in the general_ChromaV1ToYUV444 function during AVC444 chroma plane reconstruction. A malicious RDP server can craft a RFX_AVC444_BITMAP_STREAM with specific frame geometry to trigger an out-of-bounds memory read past the allocated luma plane.
History

Sat, 05 Sep 2026 02:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

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


Thu, 03 Sep 2026 12:15:00 +0000

Type Values Removed Values Added
References
Metrics threat_severity

None

threat_severity

Moderate


Thu, 03 Sep 2026 01:15:00 +0000

Type Values Removed Values Added
Description FreeRDP before 3.31.0 contains a heap out-of-bounds read vulnerability in the general_ChromaV1ToYUV444 function during AVC444 chroma plane reconstruction. A malicious RDP server can craft a RFX_AVC444_BITMAP_STREAM with specific frame geometry to trigger an out-of-bounds memory read past the allocated luma plane.
Title FreeRDP before 3.31.0 Heap Out-of-Bounds Read via AVC444
First Time appeared Freerdp
Freerdp freerdp
Weaknesses CWE-125
CPEs cpe:2.3:a:freerdp:freerdp:*:*:*:*:*:*:*:*
Vendors & Products Freerdp
Freerdp freerdp
References
Metrics cvssV3_1

{'score': 5.4, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:L'}

cvssV4_0

{'score': 5.3, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:N/VA:L/SC:N/SI:N/SA:N'}


cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published:

Updated: 2026-09-05T01:09:02.625Z

Reserved: 2026-09-02T23:53:01.335Z

Link: CVE-2026-85090

cve-icon Vulnrichment

Updated: 2026-09-05T01:08:56.399Z

cve-icon NVD

Status : Received

Published: 2026-09-03T13:06:20.430

Modified: 2026-09-05T01:16:50.127

Link: CVE-2026-85090

cve-icon Redhat

Severity : Moderate

Publid Date: 2026-09-03T01:04:43Z

Links: CVE-2026-85090 - Bugzilla

cve-icon OpenCVE Enrichment

Updated: 2026-09-03T10:00:11Z