CVE-2026-22853Critical· 9.8▾ MidnightFreeRDP is a free implementation of the Remote Desktop Protocol. Prior to 3.20.1, RDPEAR’s NDR array reader does not perform bounds checking on the on‑wire element count and can write past the heap buffer allocated from hints, causing a …
▾ Midnight zone — Critical, or high with PoC / in-the-wild
impact 53.9 · likelihood 0.2 · exploitation 0
Need a working PoC? Pro members can cast a request and our team develops one — it lands right here.
Exploit-prediction probability, daily snapshots since Jul 4.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via NVD
Last analysed / modified upstream
0.7%
0.7% → 0.8%
FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to 3.20.1, RDPEAR’s NDR array reader does not perform bounds checking on the on‑wire element count and can write past the heap buffer allocated from hints, causing a heap buffer overflow in ndr_read_uint8Array. This vulnerability is fixed in 3.20.1.
freerdp < 3.20.1Upgrade past the affected range:
freerdp 3.20.1Connected by shared product, vendor, weakness, or advisory.
CVE-2026-22858Critical· 9.1FreeRDP is a free implementation of the Remote Desktop Protocol
CVE-2026-24678High· 7.5FreeRDP is a free implementation of the Remote Desktop Protocol
CVE-2026-22859Critical· 9.1FreeRDP is a free implementation of the Remote Desktop Protocol
CVE-2026-22855Critical· 9.1FreeRDP is a free implementation of the Remote Desktop Protocol
CVE-2026-45700Critical· 9.8FreeRDP is a free implementation of the Remote Desktop Protocol
CVE-2026-91951Medium· 6.5FreeRDP versions before 3.31.0 contain an out-of-bounds write vulnerability in the urbdrc client channel's urb_send_current_frame_number_result() function