CVE-2026-109947: freerdp freerdp

CVSS 7.1 (high) · published 2026-10-13

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 products (NVD): freerdp freerdp

Fixed in (NVD): 3.32.0

Weakness: CWE-770

Source: NVD CVE-2026-109947

References

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

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