CVE-2026-109242

Published: Oct 12, 2026Modified: Oct 15, 2026

7.1

Vector

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:XShow less

Source: disclosure@vulncheck.com (Secondary)

Description

FreeRDP before 3.0.0 and 3.6.0 before 3.32.0 renders uninitialized heap memory from un-decoded progressive tiles because the tile->current buffer is allocated without zeroing. A malicious RDP server can send a crafted WBT_TILE_FIRST then WBT_TILE_UPGRADE sequence to paint heap bytes onscreen or abort the client process.

Related CWEs

CWE-908

Use of Uninitialized Resource

The product uses or accesses a resource that has not been initialized.

References (3)

https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-4mpr-hmqx-83q8

Source: disclosure@vulncheck.com

https://www.vulncheck.com/advisories/freerdp-before-3.0.0-and-3.6.0-before-3.32.0-uninitialized-heap-disclosure-via-progressive-codec-tile-upgrade

Source: disclosure@vulncheck.com

https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-4mpr-hmqx-83q8

Source: 134c704f-9b21-4f2e-91b3-4a467353bcc0

Timeline

No history available yet.