Каталог CVE

CVE-2026-55238

xrdp is an open source RDP server. Versions 0.10.6 and…

xrdp is an open source RDP server. Versions 0.10.6 and prior contain a vulnerability concerning the processing of RDP Confirm Active PDU, where during the capability negotiation phase, the parser did not perform sufficient length validation for specific capability sets. A remote, unauthenticated attacker could potentially exploit this flaw by sending a specially crafted RDP packet containing malformed capability data. 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.

Критичність: Medium · CVSS 5.3CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Published: Jul 20, 2026, 5:05:01 PM UTC
Source: [NVD] · [CVE record]
EPSS: 0.52% · Oct 27, 2026

Projects and upstream resources

Reported versions and fixes

Each observation applies to its named package, distribution, and release. Distribution backports can fix a vulnerability while retaining an older upstream version number.

Distribution / release	Package	Version	Status	Source
Debiantrixie-security	xrdp	`0.10.1-3.1+deb13u2`	Fixed	[CVE-2026-55238]
Debiantrixie	xrdp	`0.10.1-3.1+deb13u2`	FixedDistribution-reported fixed boundary	[CVE-2026-55238]
Debiansid	xrdp	`0.10.6.1-2`	FixedDistribution-reported fixed boundary	[CVE-2026-55238]
Debiansid	xrdp	`0.10.6.1-3`	Fixed	[CVE-2026-55238]
Debianforky	xrdp	`0.10.6.1-2`	FixedDistribution-reported fixed boundary	[CVE-2026-55238]
Debianforky	xrdp	`0.10.6.1-3`	Fixed	[CVE-2026-55238]
Debianbookworm-security	xrdp	`0.9.21.1-1+deb12u3`	Fixed	[CVE-2026-55238]
Debianbookworm	xrdp	`0.9.21.1-1+deb12u3`	FixedDistribution-reported fixed boundary	[CVE-2026-55238]

Showing 8 fix observations. All 10 observations, including unknown and conflicting reports, are available below.

Provider details and historical evidence

Distribution / release	Package	Version	Status	Source
UnknownRelease not reported	xrdp	Not reported	UnknownSource applicability is not established	Provider not reported
Debianbookworm	xrdp	`0.9.21.1-1+deb12u2`	Affected	[CVE-2026-55238]
Debianbookworm	xrdp	`0.9.21.1-1+deb12u3`	FixedDistribution-reported fixed boundary	[CVE-2026-55238]
Debianbookworm-security	xrdp	`0.9.21.1-1+deb12u3`	Fixed	[CVE-2026-55238]
Debianforky	xrdp	`0.10.6.1-2`	FixedDistribution-reported fixed boundary	[CVE-2026-55238]
Debianforky	xrdp	`0.10.6.1-3`	Fixed	[CVE-2026-55238]
Debiansid	xrdp	`0.10.6.1-2`	FixedDistribution-reported fixed boundary	[CVE-2026-55238]
Debiansid	xrdp	`0.10.6.1-3`	Fixed	[CVE-2026-55238]
Debiantrixie	xrdp	`0.10.1-3.1+deb13u2`	FixedDistribution-reported fixed boundary	[CVE-2026-55238]
Debiantrixie-security	xrdp	`0.10.1-3.1+deb13u2`	Fixed	[CVE-2026-55238]

Original provider fields

{
  "package_releases": [
    {
      "name": "xrdp",
      "status": "fixed",
      "release": "sid",
      "version": "0.10.6.1-3"
    },
    {
      "name": "xrdp",
      "status": "fixed",
      "release": "forky",
      "version": "0.10.6.1-3"
    },
    {
      "name": "xrdp",
      "status": "fixed",
      "release": "trixie",
      "version": "0.10.1-3.1+deb13u2"
    },
    {
      "name": "xrdp",
      "status": "fixed",
      "release": "trixie-security",
      "version": "0.10.1-3.1+deb13u2"
    },
    {
      "name": "xrdp",
      "status": "vulnerable",
      "release": "bookworm",
      "version": "0.9.21.1-1+deb12u2"
    },
    {
      "name": "xrdp",
      "status": "fixed",
      "release": "bookworm-security",
      "version": "0.9.21.1-1+deb12u3"
    }
  ],
  "fixed_versions": [
    {
      "bug": null,
      "name": "xrdp",
      "type": "source",
      "origin": null,
      "release": "sid",
      "urgency": "not yet assigned",
      "fixed_version": "0.10.6.1-2"
    },
    {
      "bug": null,
      "name": "xrdp",
      "type": "source",
      "origin": null,
      "release": "forky",
      "urgency": "not yet assigned",
      "fixed_version": "0.10.6.1-2"
    },
    {
      "bug": null,
      "name": "xrdp",
      "type": "source",
      "origin": null,
      "release": "trixie",
      "urgency": "not yet assigned",
      "fixed_version": "0.10.1-3.1+deb13u2"
    },
    {
      "bug": null,
      "name": "xrdp",
      "type": "source",
      "origin": null,
      "release": "bookworm",
      "urgency": "not yet assigned",
      "fixed_version": "0.9.21.1-1+deb12u3"
    }
  ],
  "distribution_packages": [
    {
      "name": "xrdp",
      "fixed_version": "not yet fixed",
      "applicability_unknown": true
    },
    {
      "name": "xrdp",
      "ranges": [
        {
          "fixed": "0.10.6.1",
          "introduced": "",
          "last_affected": "",
          "start_excluding": ""
        }
      ],
      "ecosystem": "cpe",
      "provider_url": "https://nvd.nist.gov/vuln/detail/CVE-2026-55238",
      "fixed_version": "0.10.6.1",
      "provider_source": "nvd",
      "provider_record_id": "NVD-CVE-2026-55238",
      "provider_updated_at": "2026-10-24T20:10:00.137"
    }
  ]
}

OpenFactory catalog packages

Зіставлення пакетів триває.

[Debian 12 (Bookworm)]

[xrdp]Невідомо
Подробиці (6)
- 0.9.21.1-1+deb12u2 · amd64 · bookworm
  Уражена · Виправлена: 0.9.21.1-1+deb12u3
  nvd · xrdp · debian · bookworm; nvd · xrdp · debian · 12
- 0.9.21.1-1+deb12u2 · arm64 · bookworm
  Уражена · Виправлена: 0.9.21.1-1+deb12u3
  nvd · xrdp · debian · bookworm; nvd · xrdp · debian · 12
- 0.9.24-5~bpo12+1 · amd64 · bookworm-backports
  Виправлена · Виправлена: 0.9.21.1-1+deb12u3
  nvd · xrdp · debian · bookworm; nvd · xrdp · debian · 12
- 0.9.24-5~bpo12+1 · arm64 · bookworm-backports
  Виправлена · Виправлена: 0.9.21.1-1+deb12u3
  nvd · xrdp · debian · bookworm; nvd · xrdp · debian · 12
- 0.9.21.1-1+deb12u3 · amd64 · bookworm-security
  Виправлена · Виправлена: 0.9.21.1-1+deb12u3
  nvd · xrdp · debian · bookworm; nvd · xrdp · debian · 12
- 0.9.21.1-1+deb12u3 · arm64 · bookworm-security
  Виправлена · Виправлена: 0.9.21.1-1+deb12u3
  nvd · xrdp · debian · bookworm; nvd · xrdp · debian · 12

[Debian 13 (Trixie)]

[xrdp]Невідомо
Подробиці (5)
- 0.10.1-3.1+deb13u1 · amd64 · trixie
  Уражена · Виправлена: 0.10.1-3.1+deb13u2
  nvd · xrdp · debian · 13
- 0.10.1-3.1+deb13u1 · arm64 · trixie
  Уражена · Виправлена: 0.10.1-3.1+deb13u2
  nvd · xrdp · debian · 13
- 0.10.1-3.1+deb13u1 · amd64 · trixie-security · Historical version
  Уражена · Виправлена: 0.10.1-3.1+deb13u2
  nvd · xrdp · debian · 13
- 0.10.1-3.1+deb13u2 · amd64 · trixie-security
  Виправлена · Виправлена: 0.10.1-3.1+deb13u2
  nvd · xrdp · debian · 13
- 0.10.1-3.1+deb13u2 · arm64 · trixie-security
  Виправлена · Виправлена: 0.10.1-3.1+deb13u2
  nvd · xrdp · debian · 13

Спостережено: Oct 27, 2026, 7:12:48 AM UTC

Посилання

[Debian Security Tracker] · [FIRST EPSS] · [National Vulnerability Database (NVD)] · [OSV Package Vulnerability Database] · [Red Hat security advisories and VEX] · [SUSE security advisories and VEX]