CVE-2026-109947

MEDIUM 6.5

FreeRDP 3.20.1 before 3.32.0 Unbounded Allocation via drive_process_irp_read

CVSS Score

6.5

EPSS Score

0.0%

EPSS Percentile

0th

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.

CWE	CWE-770
Vendor	freerdp
Product	freerdp
Published	Oct 13, 2026

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CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

Affected Versions

FreeRDP / FreeRDP

3.20.1 < 3.32.0

References

NVD ↗ CVE.org ↗ EPSS Data ↗

github.com: https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-q56j-jjh6-38jf vulncheck.com: https://www.vulncheck.com/advisories/freerdp-3.20.1-before-3.32.0-unbounded-allocation-via-drive-process-irp-read

Credits

Kushalkhemka opensec-intelligence mayank-jangid-moon skigeek16