CVE-2026-33689
CriticalSummary
xrdp to serwer RDP typu open source. W wersjach do 0.10.5 występuje podatność na odczyt poza granicami bufora w logice analizy wiadomości RDP przed uwierzytelnieniem, co pozwala zdalnemu, nieautoryzowanemu atakującemu na wywołanie tego błędu poprzez wysłanie specjalnie przygotowanej sekwencji pakietów podczas początkowej fazy połączenia.
Risk Assessment
Wykorzystanie tej podatności może prowadzić do stanu odmowy usługi (DoS) poprzez awarię procesu lub potencjalne ujawnienie wrażliwych informacji z pamięci serwisu, co stanowi poważne zagrożenie dla bezpieczeństwa organizacji.
Recommendation
Zaleca się aktualizację do wersji 0.10.6 lub nowszej, aby usunąć tę podatność i zabezpieczyć system przed potencjalnymi atakami.
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Original NVD description (English source)
xrdp is an open source RDP server. Versions through 0.10.5 have an out-of-bounds read vulnerability in the pre-authentication RDP message parsing logic. A remote, unauthenticated attacker can trigger this flaw by sending a specially crafted sequence of packets during the initial connection phase. This vulnerability results from insufficient validation of input buffer lengths before processing dynamic channel communication. Successful exploitation can lead to a denial-of-service (DoS) condition via a process crash or potential disclosure of sensitive information from the service's memory space. This issue has been fixed in version 0.10.6.
Vulnerability data from NVD (NIST) · CISA KEV · EPSS