Skip to content
Fencer Vulns
high 8.8

CVE-2026-44178 json

xrdp: Channel Data Forwarding Fixed-Size Buffer Overflow

published 2026-07-20 3 mo ago modified 2026-10-24 15 d ago also EUVD-2026-46028

cvss
8.8
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.9%
EPSS 0.9% chance of exploitation in 30 days, percentile 59%
public exploits
0
none known

Summary

xrdp is an open source RDP server. Versions 0.10.6 and prior contain a heap-based buffer overflow vulnerability within the virtual channel forwarding mechanism. When forwarding data from a remote client to the internal channel server, the xrdp process utilizes a fixed-size buffer without adequate bounds checking on the incoming payload. An authenticated remote attacker can exploit this flaw by sending a specially crafted virtual channel message that exceeds the buffer capacity, leading to heap memory corruption. This may result in a denial of service or the execution of arbitrary code with the privileges of the xrdp process. This issue has been fixed in version 0.10.6.1.

Patch / fix

  • neutrinolabs xrdp 0.10.6.1
  • xrdp Debian 12 0.9.21.1-1+deb12u3
  • xrdp Debian 13 0.10.1-3.1+deb13u2
  • xrdp Debian 14 0.10.6.1-2

debian advisories DEBIAN-CVE-2026-44178

  • xrdp openSUSE Tumbleweed 0.10.6.1-1.1

opensuse advisories openSUSE-SU-2026:11543-1

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2026-44178 updated cvss 8.8

xrdp: heap-based buffer overflow in virtual channel forwarding

  • Red Hat All currently supported Red Hat products
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
total
Assessed
3 mo ago

Exploit prediction

0.88% chance of exploitation in the next 30 days, higher than 59% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.1 8.8 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected products

  • neutrinolabs xrdp

Classification

Weakness
  • CWE-122 Heap-based Buffer Overflow

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.