CVE-2026-32624

NameCVE-2026-32624
Descriptionxrdp is an open source RDP server. Versions through 0.10.5 contain a heap-based buffer overflow vulnerability in its logon processing. In environments where domain_user_separator is configured in xrdp.ini, an unauthenticated remote attacker can send a crafted, excessively long username and domain name to overflow the internal buffer. This can corrupt adjacent memory regions, potentially leading to a Denial of Service (DoS) or unexpected behavior. The domain_name_separator directive is commented out by default, systems are not affected by this vulnerability unless it is intentionally configured. This issue has been fixed in version 0.10.6.
SourceCVE (at NVD; CERT, ENISA, LWN, oss-sec, fulldisc, Debian ELTS, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
xrdp (PTS)bullseye0.9.21.1-1~deb11u1vulnerable
bullseye (security)0.9.21.1-1~deb11u3vulnerable
bookworm0.9.21.1-1+deb12u1vulnerable
bookworm (security)0.9.21.1-1+deb12u2vulnerable
trixie (security), trixie0.10.1-3.1+deb13u1vulnerable
forky, sid0.10.5-5vulnerable

The information below is based on the following data on fixed versions.

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
xrdpsource(unstable)(unfixed)

Notes

https://github.com/neutrinolabs/xrdp/security/advisories/GHSA-7q2g-6fjr-h6pp

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