CVE-2026-121386

High

Description

FreeRDP before 3.32.2 contains a denial of service vulnerability in WinPR's winpr_read_png_from_buffer() and winpr_convert_from_jpeg(), which lack libpng/libjpeg error handling. A malicious RDP server or MITM can offer a malformed PNG or truncated JPEG clipboard payload, causing the client to abort or exit.

SeverityHigh

CVSS7.5

Exploit probability—

ProductFreerdp

PublishedNov 3, 2026

First seenNov 4, 2026

Weakness typeCWE-248CWE-248

How to fix

Update

freerdp freerdp3.32.2 or later

Vendor advisories

github.com/FreeRDP/FreeRDP/security/advisories/GHSA-799q-hjgw-g55g

Affected products

Product	Affected versions	Fixed in
freerdp freerdp	v < 3.32.2	3.32.2

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