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CVE-2026-121397

MEDIUM CVSS: 4.3 Published: 2026-11-03 Modified: 2026-11-03

Description

FreeRDP before 3.32.2 contains a heap buffer over-read vulnerability in save_png_to_buffer() that allows malicious RDP servers to leak client memory by sending 16 bpp DIB clipboard data. Attackers can offer a CF_DIB BI_BITFIELDS image that, when converted to PNG for a local application, embeds client heap bytes into the clipboard image.

Affected Platforms

Freerdp Freerdp

Weakness Type

CWE-125

References