{ "dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": { "cveId": "CVE-2026-33689", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "state": "PUBLISHED", "assignerShortName": "GitHub_M", "dateReserved": "2026-03-23T16:34:59.932Z", "datePublished": "2026-04-17T20:16:31.248Z", "dateUpdated": "2026-04-20T16:21:39.933Z" }, "containers": { "cna": { "title": "xrdp: Pre-authentication out-of-bounds reads in channel parsers", "problemTypes": [ { "descriptions": [ { "cweId": "CWE-125", "lang": "en", "description": "CWE-125: Out-of-bounds Read", "type": "CWE" } ] } ], "metrics": [ { "cvssV4_0": { "attackVector": "NETWORK", "attackComplexity": "LOW", "attackRequirements": "NONE", "privilegesRequired": "NONE", "userInteraction": "NONE", "vulnConfidentialityImpact": "NONE", "vulnIntegrityImpact": "NONE", "vulnAvailabilityImpact": "HIGH", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "subAvailabilityImpact": "NONE", "baseScore": 8.7, "baseSeverity": "HIGH", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N", "version": "4.0" } } ], "references": [ { "name": "https://github.com/neutrinolabs/xrdp/security/advisories/GHSA-92mr-6wpp-27jj", "tags": [ "x_refsource_CONFIRM" ], "url": "https://github.com/neutrinolabs/xrdp/security/advisories/GHSA-92mr-6wpp-27jj" }, { "name": "https://github.com/neutrinolabs/xrdp/releases/tag/v0.10.6", "tags": [ "x_refsource_MISC" ], "url": "https://github.com/neutrinolabs/xrdp/releases/tag/v0.10.6" } ], "affected": [ { "vendor": "neutrinolabs", "product": "xrdp", "versions": [ { "version": "< 0.10.6", "status": "affected" } ] } ], "providerMetadata": { "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2026-04-17T20:16:31.248Z" }, "descriptions": [ { "lang": "en", "value": "xrdp is an open source RDP server. Versions through 0.10.5 have an out-of-bounds read vulnerability in the pre-authentication RDP message parsing logic. A remote, unauthenticated attacker can trigger this flaw by sending a specially crafted sequence of packets during the initial connection phase. This vulnerability results from insufficient validation of input buffer lengths before processing dynamic channel communication. Successful exploitation can lead to a denial-of-service (DoS) condition via a process crash or potential disclosure of sensitive information from the service's memory space. This issue has been fixed in version 0.10.6." } ], "source": { "advisory": "GHSA-92mr-6wpp-27jj", "discovery": "UNKNOWN" } }, "adp": [ { "metrics": [ { "other": { "type": "ssvc", "content": { "timestamp": "2026-04-20T16:21:30.532923Z", "id": "CVE-2026-33689", "options": [ { "Exploitation": "none" }, { "Automatable": "yes" }, { "Technical Impact": "partial" } ], "role": "CISA Coordinator", "version": "2.0.3" } } } ], "title": "CISA ADP Vulnrichment", "providerMetadata": { "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-04-20T16:21:39.933Z" } } ] } }