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DEBIAN-CVE-2026-54538

Type: advisorySource: OSV1 source record

xrdp is an open source RDP server. In versions 0.10.6 and prior, a n issue was discovered where the software fails to properly validate the totalLength field within the RDP protocol control header during packet reception. An unauthenticated remote attacker can exploit this vulnerability by sending a specially crafted packet that forces the xrdp process or thread into an infinite, CPU-bound loop. Because the internal pointer fails to advance and the deadlock prevention mechanism is bypassed for specific protocol data unit types, the process consumes excessive CPU resources indefinitely. This can render the xrdp service unavailable and potentially lead to system-wide resource exhaustion if multiple malicious connections are established. This issue has been fixed in version 0.10.6.1.

Announced Group revision 1
Original source ↗

DEBIAN-CVE-2026-54538

Primary source · Revision 1

Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.

Security context

Source reference: osv:DEBIAN-CVE-2026-54538

xrdp

Source reference: /affected/0/package/name

Affected versions
0.9.21.1-1

Source reference: /affected/0/versions

0.9.21.1-1+deb12u1

Source reference: /affected/0/versions

0.9.21.1-1+deb12u2

Source reference: /affected/0/versions

Fixed versions
0.9.21.1-1+deb12u3

Source reference: /affected/0/ranges

Prerequisites
Not stated in this record

xrdp

Source reference: /affected/1/package/name

Affected versions
0.10.1-3.1

Source reference: /affected/1/versions

0.10.1-3.1+deb13u1

Source reference: /affected/1/versions

Fixed versions
0.10.1-3.1+deb13u2

Source reference: /affected/1/ranges

Prerequisites
Not stated in this record

xrdp

Source reference: /affected/2/package/name

Affected versions
0.10.1-3.1

Source reference: /affected/2/versions

0.10.1-4

Source reference: /affected/2/versions

0.10.1-4.1

Source reference: /affected/2/versions

0.10.2-1

Source reference: /affected/2/versions

0.10.2-2

Source reference: /affected/2/versions

0.10.4.1-1

Source reference: /affected/2/versions

0.10.4.1-2

Source reference: /affected/2/versions

0.10.5-1

Source reference: /affected/2/versions

0.10.5-2

Source reference: /affected/2/versions

0.10.5-3

Source reference: /affected/2/versions

0.10.5-4

Source reference: /affected/2/versions

0.10.5-5

Source reference: /affected/2/versions

0.10.6-1

Source reference: /affected/2/versions

0.10.6-2

Source reference: /affected/2/versions

0.10.6-3

Source reference: /affected/2/versions

0.10.6-4

Source reference: /affected/2/versions

0.10.6-5

Source reference: /affected/2/versions

0.10.6.1-1

Source reference: /affected/2/versions

0.10.6.1-2~bpo13+1

Source reference: /affected/2/versions

Fixed versions
0.10.6.1-2

Source reference: /affected/2/ranges

Prerequisites
Not stated in this record

Structured affected-version data

Original package identities and version rules from this source.

[
  {
    "ranges": [
      {
        "type": "ECOSYSTEM",
        "events": [
          {
            "introduced": "0"
          },
          {
            "fixed": "0.9.21.1-1+deb12u3"
          }
        ]
      }
    ],
    "package": {
      "name": "xrdp",
      "purl": "pkg:deb/debian/xrdp?arch=source&distro=bookworm",
      "ecosystem": "Debian:12"
    },
    "versions": [
      "0.9.21.1-1",
      "0.9.21.1-1+deb12u1",
      "0.9.21.1-1+deb12u2"
    ],
    "database_specific": {
      "source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-54538.json"
    },
    "ecosystem_specific": {
      "urgency": "not yet assigned"
    }
  },
  {
    "ranges": [
      {
        "type": "ECOSYSTEM",
        "events": [
          {
            "introduced": "0"
          },
          {
            "fixed": "0.10.1-3.1+deb13u2"
          }
        ]
      }
    ],
    "package": {
      "name": "xrdp",
      "purl": "pkg:deb/debian/xrdp?arch=source&distro=trixie",
      "ecosystem": "Debian:13"
    },
    "versions": [
      "0.10.1-3.1",
      "0.10.1-3.1+deb13u1"
    ],
    "database_specific": {
      "source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-54538.json"
    },
    "ecosystem_specific": {
      "urgency": "not yet assigned"
    }
  },
  {
    "ranges": [
      {
        "type": "ECOSYSTEM",
        "events": [
          {
            "introduced": "0"
          },
          {
            "fixed": "0.10.6.1-2"
          }
        ]
      }
    ],
    "package": {
      "name": "xrdp",
      "purl": "pkg:deb/debian/xrdp?arch=source&distro=forky",
      "ecosystem": "Debian:14"
    },
    "versions": [
      "0.10.1-3.1",
      "0.10.1-4",
      "0.10.1-4.1",
      "0.10.2-1",
      "0.10.2-2",
      "0.10.4.1-1",
      "0.10.4.1-2",
      "0.10.5-1",
      "0.10.5-2",
      "0.10.5-3",
      "0.10.5-4",
      "0.10.5-5",
      "0.10.6-1",
      "0.10.6-2",
      "0.10.6-3",
      "0.10.6-4",
      "0.10.6-5",
      "0.10.6.1-1",
      "0.10.6.1-2~bpo13+1"
    ],
    "database_specific": {
      "source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-54538.json"
    },
    "ecosystem_specific": {
      "urgency": "not yet assigned"
    }
  }
]

Publisher severity

No explicit severity was provided.

Event
#57826 · Revision 1
Added to Heist Feed
Publisher date
Read the original announcement

Revision history

  1. DEBIAN-CVE-2026-54538 · Revision 1Source updated