Medium severity4.3NVD Advisory· Published Nov 3, 2026· Updated Nov 3, 2026
CVE-2026-121397
CVE-2026-121397
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 products
1Patches
Vulnerability mechanics
References
2- github.com/FreeRDP/FreeRDP/security/advisories/GHSA-x7w3-32ch-x2jqnvdVendor Advisory
- www.vulncheck.com/advisories/freerdp-before-3.32.2-heap-over-read-via-winpr-save-png-to-buffernvdThird Party Advisory
News mentions
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