CVE-2026-33689: high-severity vulnerability in neutrinolabs xrdp
xrdp: Pre-authentication out-of-bounds reads in channel parsers
Published · Updated
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21Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 8.7epss 0.5%
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.
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
Affected products
neutrinolabs · xrdpRelated CVEs — neutrinolabs xrdp
In the same product, most dangerous first.
CVE-2020-4044HIGHLocal users can perform a buffer overflow attack against the xrdp-sesman service and then impersonate itEPSS 2.3%CVE-2025-68670CRITICALxrdp improperly checks bounds of domain string length, which leads to Stack-based Buffer OverflowEPSS 1.4%CVE-2026-41252CRITICALxrdp: lib_palette_update Heap Buffer Overflow & RCEEPSS 1.1%CVE-2022-23493CRITICALOut of Bound Read in xrdpEPSS 1.0%CVE-2022-23477CRITICALBuffer Overflow in xrdpEPSS 0.9%CVE-2022-23480CRITICALBuffer Overflow in xrdpEPSS 0.9%