CVE-2026-114043
MEDIUM
CVSS 6.5
Published: 2026-10-21
Modified: 2026-10-22
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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.
Quick Facts
| CVE ID | CVE-2026-114043 |
| CVSS Score | 6.5 |
| Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N |
| Published | 2026-10-21 |
| Exploited | No |
| CISA KEV | No |
| PoC | Not public |