CVE-2026-35512

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-35512", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "state": "PUBLISHED", "assignerShortName": "GitHub_M", "dateReserved": "2026-04-03T02:15:39.280Z", "datePublished": "2026-04-17T20:21:59.868Z", "dateUpdated": "2026-04-22T03:55:37.686Z"}, "containers": {"cna": {"title": "xrdp: Heap buffer overflow in EGFX channel", "problemTypes": [{"descriptions": [{"cweId": "CWE-122", "lang": "en", "description": "CWE-122: Heap-based Buffer Overflow", "type": "CWE"}]}], "metrics": [{"cvssV4_0": {"attackVector": "NETWORK", "attackComplexity": "LOW", "attackRequirements": "NONE", "privilegesRequired": "LOW", "userInteraction": "NONE", "vulnConfidentialityImpact": "HIGH", "vulnIntegrityImpact": "HIGH", "vulnAvailabilityImpact": "HIGH", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "subAvailabilityImpact": "NONE", "baseScore": 8.7, "baseSeverity": "HIGH", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N", "version": "4.0"}}], "references": [{"name": "https://github.com/neutrinolabs/xrdp/security/advisories/GHSA-jg6p-7fg8-9hh6", "tags": ["x_refsource_CONFIRM"], "url": "https://github.com/neutrinolabs/xrdp/security/advisories/GHSA-jg6p-7fg8-9hh6"}, {"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": "2026-04-17T20:21:59.868Z"}, "descriptions": [{"lang": "en", "value": "xrdp is an open source RDP server. Versions through 0.10.5 have a heap-based buffer overflow in the EGFX (graphics dynamic virtual channel) implementation due to insufficient validation of client-controlled size parameters, allowing an out-of-bounds write via crafted PDUs. Pre-authentication exploitation can crash the process, while post-authentication exploitation may achieve remote code execution. This issue has been fixed in version 0.10.6. If users are unable to immediately update, they should run xrdp as a non-privileged user (default since 0.10.2) to limit the impact of successful exploitation."}], "source": {"advisory": "GHSA-jg6p-7fg8-9hh6", "discovery": "UNKNOWN"}}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2026-04-21T00:00:00+00:00", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "total"}], "role": "CISA Coordinator", "version": "2.0.3", "id": "CVE-2026-35512"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-04-22T03:55:37.686Z"}}]}}

{"dataType": "CVE_RECORD", "containers": {"adp": [{"title": "CISA ADP Vulnrichment", "metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2026-35512", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "total"}], "version": "2.0.3", "timestamp": "2026-04-20T15:35:56.066865Z"}}}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-04-20T15:36:04.489Z"}}], "cna": {"title": "xrdp: Heap buffer overflow in EGFX channel", "source": {"advisory": "GHSA-jg6p-7fg8-9hh6", "discovery": "UNKNOWN"}, "metrics": [{"cvssV4_0": {"version": "4.0", "baseScore": 8.7, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N", "userInteraction": "NONE", "attackComplexity": "LOW", "attackRequirements": "NONE", "privilegesRequired": "LOW", "subIntegrityImpact": "NONE", "vulnIntegrityImpact": "HIGH", "subAvailabilityImpact": "NONE", "vulnAvailabilityImpact": "HIGH", "subConfidentialityImpact": "NONE", "vulnConfidentialityImpact": "HIGH"}}], "affected": [{"vendor": "neutrinolabs", "product": "xrdp", "versions": [{"status": "affected", "version": "< 0.10.6"}]}], "references": [{"url": "https://github.com/neutrinolabs/xrdp/security/advisories/GHSA-jg6p-7fg8-9hh6", "name": "https://github.com/neutrinolabs/xrdp/security/advisories/GHSA-jg6p-7fg8-9hh6", "tags": ["x_refsource_CONFIRM"]}, {"url": "https://github.com/neutrinolabs/xrdp/releases/tag/v0.10.6", "name": "https://github.com/neutrinolabs/xrdp/releases/tag/v0.10.6", "tags": ["x_refsource_MISC"]}], "descriptions": [{"lang": "en", "value": "xrdp is an open source RDP server. Versions through 0.10.5 have a heap-based buffer overflow in the EGFX (graphics dynamic virtual channel) implementation due to insufficient validation of client-controlled size parameters, allowing an out-of-bounds write via crafted PDUs. Pre-authentication exploitation can crash the process, while post-authentication exploitation may achieve remote code execution. This issue has been fixed in version 0.10.6. If users are unable to immediately update, they should run xrdp as a non-privileged user (default since 0.10.2) to limit the impact of successful exploitation."}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-122", "description": "CWE-122: Heap-based Buffer Overflow"}]}], "providerMetadata": {"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2026-04-17T20:21:59.868Z"}}}, "cveMetadata": {"cveId": "CVE-2026-35512", "state": "PUBLISHED", "dateUpdated": "2026-04-22T03:55:37.686Z", "dateReserved": "2026-04-03T02:15:39.280Z", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "datePublished": "2026-04-17T20:21:59.868Z", "assignerShortName": "GitHub_M"}, "dataVersion": "5.2"}

{"affected": [{"affectedData": [{"product": "xrdp", "vendor": "neutrinolabs", "versions": [{"status": "affected", "version": "< 0.10.6"}]}], "source": "security-advisories@github.com"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:neutrinolabs:xrdp:*:*:*:*:*:*:*:*", "matchCriteriaId": "BC4D3050-83C5-4368-B1D3-534B28E0917A", "versionEndExcluding": "0.10.6", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "xrdp is an open source RDP server. Versions through 0.10.5 have a heap-based buffer overflow in the EGFX (graphics dynamic virtual channel) implementation due to insufficient validation of client-controlled size parameters, allowing an out-of-bounds write via crafted PDUs. Pre-authentication exploitation can crash the process, while post-authentication exploitation may achieve remote code execution. This issue has been fixed in version 0.10.6. If users are unable to immediately update, they should run xrdp as a non-privileged user (default since 0.10.2) to limit the impact of successful exploitation."}, {"lang": "es", "value": "xrdp es un servidor RDP de c\u00f3digo abierto. Las versiones hasta la 0.10.5 tienen un desbordamiento de b\u00fafer basado en mont\u00edculo en la implementaci\u00f3n de EGFX (canal virtual din\u00e1mico de gr\u00e1ficos) debido a una validaci\u00f3n insuficiente de los par\u00e1metros de tama\u00f1o controlados por el cliente, lo que permite una escritura fuera de l\u00edmites a trav\u00e9s de PDUs manipuladas. La explotaci\u00f3n previa a la autenticaci\u00f3n puede bloquear el proceso, mientras que la explotaci\u00f3n posterior a la autenticaci\u00f3n puede lograr la ejecuci\u00f3n remota de c\u00f3digo. Este problema ha sido solucionado en la versi\u00f3n 0.10.6. Si los usuarios no pueden actualizar de inmediato, deben ejecutar xrdp como un usuario no privilegiado (predeterminado desde la 0.10.2) para limitar el impacto de una explotaci\u00f3n exitosa."}], "id": "CVE-2026-35512", "lastModified": "2026-10-26T21:10:00.170", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 8.8, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 2.8, "impactScore": 5.9, "source": "nvd@nist.gov", "type": "Primary"}], "cvssMetricV40": [{"cvssData": {"Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "Safety": "NOT_DEFINED", "attackComplexity": "LOW", "attackRequirements": "NONE", "attackVector": "NETWORK", "availabilityRequirement": "NOT_DEFINED", "baseScore": 8.7, "baseSeverity": "HIGH", "confidentialityRequirement": "NOT_DEFINED", "exploitMaturity": "NOT_DEFINED", "integrityRequirement": "NOT_DEFINED", "modifiedAttackComplexity": "NOT_DEFINED", "modifiedAttackRequirements": "NOT_DEFINED", "modifiedAttackVector": "NOT_DEFINED", "modifiedPrivilegesRequired": "NOT_DEFINED", "modifiedSubAvailabilityImpact": "NOT_DEFINED", "modifiedSubConfidentialityImpact": "NOT_DEFINED", "modifiedSubIntegrityImpact": "NOT_DEFINED", "modifiedUserInteraction": "NOT_DEFINED", "modifiedVulnAvailabilityImpact": "NOT_DEFINED", "modifiedVulnConfidentialityImpact": "NOT_DEFINED", "modifiedVulnIntegrityImpact": "NOT_DEFINED", "privilegesRequired": "LOW", "providerUrgency": "NOT_DEFINED", "subAvailabilityImpact": "NONE", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "userInteraction": "NONE", "valueDensity": "NOT_DEFINED", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X", "version": "4.0", "vulnAvailabilityImpact": "HIGH", "vulnConfidentialityImpact": "HIGH", "vulnIntegrityImpact": "HIGH", "vulnerabilityResponseEffort": "NOT_DEFINED"}, "source": "security-advisories@github.com", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-35512", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "total"}], "role": "CISA Coordinator", "timestamp": "2026-04-21T00:00:00+00:00", "version": "2.0.3"}}]}, "published": "2026-04-17T21:16:33.297", "references": [{"source": "security-advisories@github.com", "tags": ["Patch", "Release Notes"], "url": "https://github.com/neutrinolabs/xrdp/releases/tag/v0.10.6"}, {"source": "security-advisories@github.com", "tags": ["Vendor Advisory"], "url": "https://github.com/neutrinolabs/xrdp/security/advisories/GHSA-jg6p-7fg8-9hh6"}], "sourceIdentifier": "security-advisories@github.com", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-122"}], "source": "security-advisories@github.com", "type": "Secondary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[0,0.10.6)"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "xrdp", "source": "cna", "vendor": "neutrinolabs"}, "product": "xrdp", "vendor": "neutrinolabs"}], "analysis": {"en": {"generated_at": "2026-04-18T09:01:30.473804+00:00", "value": {"mitigation_remediation": ["Upgrade the xrdp server to version 0.10.6 or later to receive the vendor's patch.", "Deploy the vulnerability workaround by running xrdp under a non\u2011privileged user account (enabled by default since 0.10.2) if an upgrade is not immediately feasible.", "Restrict inbound RDP access to trusted networks, consider firewall rules, and enforce strong authentication before allowing remote connections to reduce exposure."], "summary": {"action": "Patch Immediately", "impact": "Remote Code Execution possible after authentication, Denial of Service before authentication"}, "threat_synthesis": {"affected_systems": "The issue affects neutrinolabs xrdp server versions 0.10.5 and earlier. The fix was released in version 0.10.6; earlier releases remain vulnerable.", "description_and_impact": "A heap-based buffer overflow exists in the EGFX channel of the xrdp RDP server. The flaw arises from insufficient validation of client\u2011controlled size fields, allowing an out\u2011of\u2011bounds write when the server parses crafted PDUs. When exploited before authentication the process can be crashed, and if authentication succeeds the attacker can achieve remote code execution, thereby obtaining full control of the host. This vulnerability is identified as CWE\u2011122.", "risk_and_exploitability": "The CVSS base score of 8.7 indicates a high\u2011severity flaw with implied network attack vector and no privilege requirement. The EPSS score is not reported, and the vulnerability is not yet listed in the CISA KEV catalog. Based on the description, the most likely attack involves a malicious RDP client sending specially crafted EGFX packets to a publicly exposed xrdp instance; pre\u2011authentication exploitation can cause a crash, while post\u2011authentication exploitation enables arbitrary code execution."}}}}, "created": "2026-04-17T21:30:28.228442+00:00", "updated": "2026-04-18T09:15:15.961565+00:00", "vendors": ["neutrinolabs", "neutrinolabs$PRODUCT$xrdp"]}