Classification: Severe, Solution: Official Fix, Exploit Maturity: Not Defined, CVSSv3.1: 8.3, CVEs: CVE-2026-111880, Summary: FreeRDP versions from 2.0.0 before 3.32.0 contain a heap out-of-bounds write in the server hash-callback NTLM path that fails to validate the MIC offset. Unauthenticated attackers can send a crafted AUTHENTICATE_MESSAGE with a backward session-key offset and MIC offset to write 16 zero bytes beyond the allocation.
Classification: Severe, Solution: Official Fix, Exploit Maturity: Not Defined, CVSSv3.1: 7.2, CVEs: CVE-2026-111881, Summary: FreeRDP from 3.14.1 before 3.32.0 contains an integer underflow in the WinPR BMP writer, where a mismatched stride calculation passes SIZE_MAX - 3 to Stream_Zero for sub-byte images. A malicious RDP clipboard peer can return a crafted 1-bpp BMP processed by clipboard_synthesize_image_format_to_bmp for CF_DIB/CF_DIBV5, crashing the client or causing an out-of-bounds write.
Aggiornamenti di sicurezza sanano 10 vulnerabilità, di cui 6 con gravità “alta”, in FreeRDP, implementazione open source del protocollo Remote Desktop Protocol (RDP), utilizzato per collegarsi e controllare a distanza un computer. Tali vulnerabilità potrebbero consentire a un server malevolo di eseguire codice arbitrario sul sistema client oppure permettere a un utente malintenzionato remoto di compromettere la disponibilità del servizio sui server interessati.