CVE-2026-114043

Medium

Description

FreeRDP before 3.32.1 contains a heap-based out-of-bounds read in WinPR's clipboard PNG-to-CF_DIB synthesis because winpr_read_png_from_buffer() allocates a bit-packed buffer for PNGs with bit depth below 8, while winpr_bitmap_write_buffer() copies rows assuming one byte per pixel. A malicious RDP server can send a crafted low-bit-depth PNG clipboard payload that, when pasted by the victim, discloses megabytes of heap memory.

SeverityMedium

CVSS6.5

Exploit probability—

ProductFreeRDP

PublishedOct 21, 2026

First seenOct 21, 2026

Weakness typeCWE-125Out-of-bounds read

How to fix

Update

FreeRDP FreeRDP3.32.1 or later

Vendor advisories

github.com/FreeRDP/FreeRDP/security/advisories/GHSA-f3vg-h45x-6wgf

Affected products

Product	Affected versions	Fixed in
FreeRDP FreeRDP	v < 3.32.1	3.32.1

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