Vulnerability · Published Oct 13, 2026 · Assigned by VulnCheck

CVE-2026-109947FreeRDP 3.20.1 before 3.32.0 Unbounded Allocation via drive_process_irp_read

Medium 6.5

In plain English

A medium-severity resource allocation without limits in FreeRDP from FreeRDP. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 26% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)6.5Medium

Exploit odds (30 days)0.3%top 74.2% of all CVEs

Exploited in the wildNo reportsCISA SSVC: poc

Attack toolingNoneno public tooling known

Official description

FreeRDP from 3.20.1 before 3.32.0 contains an uncontrolled resource allocation vulnerability that allows malicious RDP servers to exhaust client memory via oversized drive redirection read requests. Attackers can send IRP_MJ_READ with Length 0xffffffff, causing roughly 4 GiB of zeroed allocation on 64-bit builds or an under-reserved buffer on 32-bit builds.

Affected packages & fixed versions

Ecosystem	Package	Fixed in	Advisory
Debian:12	freerdp2	no fix listed	DEBIAN-CVE-2026-109947
Debian:13	freerdp3	no fix listed	DEBIAN-CVE-2026-109947
Debian:14	freerdp3	3.32.0+dfsg-1	DEBIAN-CVE-2026-109947
Ubuntu:22.04:LTS	freerdp2	no fix listed	UBUNTU-CVE-2026-109947
Ubuntu:24.04:LTS	freerdp3	3.32.0+dfsg-0ubuntu0.24.04.1	UBUNTU-CVE-2026-109947
Ubuntu:26.04:LTS	freerdp3	3.32.0+dfsg-0ubuntu0.26.04.1	UBUNTU-CVE-2026-109947

Affected products (as reported)

Vendor	Product	Versions
FreeRDP	FreeRDP	3.20.1 – before 3.32.0

Weakness: CWE-770 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

References

GitHub Security Advisory (GHSA-q56j-jjh6-38jf) vendor-advisory
VulnCheck Advisory: FreeRDP 3.20.1 before 3.32.0 Unbounded Allocation via drive_process_irp_read third-party-advisory