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DEBIAN-CVE-2026-55645

Type: advisorySource: OSV1 source record

xrdp is an open source RDP server. Versions 0.10.6 and prior contain a vulnerability concerning the processing of Client Control PDUs. During the RDP connection sequence, the parser does not perform sufficient length validation before reading specific data fields from the network stream. A remote, unauthenticated attacker could potentially exploit this flaw by sending a specially crafted, truncated Client Control PDU. Due to missing bounds checks, the xrdp process may perform out-of-bounds memory reads, which can result in the termination of the service (Denial of Service). However, since xrdp forks a new process for each connection by default, an out-of-bounds read causing a process crash is unlikely to bring down the entire xrdp service.This issue has been fixed in version 0.10.6.1.

Announced Source revision 1
Original source ↗

DEBIAN-CVE-2026-55645

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-2026-55645

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-2026-55645.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-2026-55645.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-2026-55645.json"
    },
    "ecosystem_specific": {
      "urgency": "not yet assigned"
    }
  }
]

Publisher severity

No explicit severity was provided.

Event
#57354 · Revision 1
Added to Heist Feed
Publisher date
Read the original announcement