Vulnerability in Freerdp
CVE-2026-109242
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.
Published .
CVSS v3 metric
CVSS v3 base score 7.1 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H.
EPSS exploit prediction
No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.
Affected products
Weakness classification (CWE)
References
- github.com/FreeRDP/FreeRDP/security/advisories/GHSA-4mpr-hmqx-83q8 (vendor-advisory)
- www.vulncheck.com/advisories/freerdp-before-3.0.0-and-3.6.0-before-3.32.0-unini… (third-party-advisory)
Frequently asked questions
- What is CVE-2026-109242?
- CVE-2026-109242 is a high-severity vulnerability in Freerdp, classified under Use of Uninitialized Resource. CVSS score: 7.1/10. Published 2026-10-12.
- How severe is CVE-2026-109242?
- High severity. CVSS v3 base score is 7.1 out of 10.