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CVE-2026-32624

xrdp: Heap buffer overflow in xrdp_sec_process_logon_info() via incorrect g_strncat length calculation

Published: Apr 17, 2026Updated: Apr 27, 2026 Sources: CVE List NVD BDUCWE-122
NVD MITRE
6.5CVSSMEDIUM
EPSS Score
0.4%
Top 67.6%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

Description

xrdp 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.

CVSS Vector Breakdown

AV:NAC:LPR:NUI:NS:UC:NI:LA:L
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:NConfidentiality
None
I:LIntegrity
Low
A:LAvailability
Low
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Weaknesses

CWE-122

Affected Products

xrdpneutrinolabs
On-prem
Networking Infrastructure / network-management
АЛЬТ СП 10АО «ИВК»
On-premOS
Operating Systems / linux-distro
xrdpСообщество свободного программного обеспеченияOperating Systems / linux-distro
neutrinolabsoss-projectNetworking Infrastructure
ао «ивк»commercialRUOperating Systemsaka ivk
сообщество свободного программного обеспеченияoss-projectOperating Systemsaka сообщество свободного программного обеспечения, fsf

Attack Graph

Products CVE Techniques Tactics

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Exploitability

Official Patch Available

MITRE ATT&CK

1 technique
Privilege Escalation
View detailed technique mapping

References

https://github.com/neutrinolabs/xrdp/releases/tag/v0.10.6
github.com
https://github.com/neutrinolabs/xrdp/security/advisories/GHSA-7q2g-6fjr-h6pp
github.com
https://altsp.su/obnovleniya-bezopasnosti/
altsp.su

Timeline

Published
Apr 17, 2026
Last Updated
Apr 27, 2026

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