{"id":"CVE-2026-55645","state":"PUBLISHED","title":"xrdp: Out-of-bounds read in Client Control PDU processing (xrdp_rdp_process_data_control)","description":"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.","publishedAt":"2026-07-20T16:51:59.140Z","updatedAt":"2026-07-21T15:24:45.532Z","severity":{"score":6.5,"label":"Medium","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L","source":"GitHub_M"},"assigner":"GitHub_M","products":["neutrinolabs xrdp"],"affected":[{"vendor":"neutrinolabs","product":"xrdp","versions":[{"version":"< 0.10.6.1","status":"affected"}]}],"references":["https://github.com/neutrinolabs/xrdp/security/advisories/GHSA-3m4m-h22g-c7xx","https://github.com/neutrinolabs/xrdp/releases/tag/v0.10.6.1"],"weaknesses":["CWE-125"],"ingestedAt":"2026-10-29T20:12:24.861Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/55xxx/CVE-2026-55645.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-55645","state":"PUBLISHED","datePublished":"2026-07-20T16:51:59.140Z","dateUpdated":"2026-07-21T15:24:45.532Z","assignerShortName":"GitHub_M","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateReserved":"2026-06-16T23:52:12.058Z"},"containers":{"cna":{"title":"xrdp: Out-of-bounds read in Client Control PDU processing (xrdp_rdp_process_data_control)","descriptions":[{"lang":"en","value":"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."}],"affected":[{"vendor":"neutrinolabs","product":"xrdp","versions":[{"version":"< 0.10.6.1","status":"affected"}]}],"references":[{"url":"https://github.com/neutrinolabs/xrdp/security/advisories/GHSA-3m4m-h22g-c7xx","name":"https://github.com/neutrinolabs/xrdp/security/advisories/GHSA-3m4m-h22g-c7xx","tags":["x_refsource_CONFIRM"]},{"url":"https://github.com/neutrinolabs/xrdp/releases/tag/v0.10.6.1","name":"https://github.com/neutrinolabs/xrdp/releases/tag/v0.10.6.1","tags":["x_refsource_MISC"]}],"metrics":[{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"LOW","baseScore":6.5,"baseSeverity":"MEDIUM","confidentialityImpact":"LOW","integrityImpact":"NONE","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L","version":"3.1"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-125","lang":"en","description":"CWE-125: Out-of-bounds Read","type":"CWE"}]}],"providerMetadata":{"shortName":"GitHub_M","orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateUpdated":"2026-07-20T16:51:59.140Z"},"source":{"advisory":"GHSA-3m4m-h22g-c7xx","discovery":"UNKNOWN"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-07-21T15:23:55.354517Z","id":"CVE-2026-55645","options":[{"Exploitation":"none"},{"Automatable":"yes"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-07-21T15:24:45.532Z"}}]}}}