{"id":"CVE-2026-41252","state":"PUBLISHED","title":"xrdp: lib_palette_update Heap Buffer Overflow & RCE","description":"xrdp is an open source RDP server. Versions 0.10.6 and prior contain a missing bounds check in xrdp, which allows a heap-based buffer overflow when operating in vnc-any mode. The issue occurs during the handling of RFB protocol color map messages from a VNC server, where incoming color indices are not properly validated. A malicious VNC server can exploit this flaw by sending crafted messages with out-of-range values, leading to an out-of-bounds write on the heap. This memory corruption can result in a denial of service (DoS) or potentially allow remote code execution (RCE) prior to authentication. This issue has been fixed in version 0.10.6.1.","publishedAt":"2026-07-20T16:29:53.496Z","updatedAt":"2026-07-23T03:56:20.804Z","severity":{"score":9.8,"label":"Critical","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","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-w5vg-6qmv-j63j","https://github.com/neutrinolabs/xrdp/releases/tag/v0.10.6.1"],"weaknesses":["CWE-122"],"ingestedAt":"2026-10-29T20:11:57.932Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/41xxx/CVE-2026-41252.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-41252","state":"PUBLISHED","datePublished":"2026-07-20T16:29:53.496Z","dateUpdated":"2026-07-23T03:56:20.804Z","assignerShortName":"GitHub_M","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateReserved":"2026-04-18T03:47:03.136Z"},"containers":{"cna":{"title":"xrdp: lib_palette_update Heap Buffer Overflow & RCE","descriptions":[{"lang":"en","value":"xrdp is an open source RDP server. Versions 0.10.6 and prior contain a missing bounds check in xrdp, which allows a heap-based buffer overflow when operating in vnc-any mode. The issue occurs during the handling of RFB protocol color map messages from a VNC server, where incoming color indices are not properly validated. A malicious VNC server can exploit this flaw by sending crafted messages with out-of-range values, leading to an out-of-bounds write on the heap. This memory corruption can result in a denial of service (DoS) or potentially allow remote code execution (RCE) prior to authentication. 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-w5vg-6qmv-j63j","name":"https://github.com/neutrinolabs/xrdp/security/advisories/GHSA-w5vg-6qmv-j63j","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":"HIGH","baseScore":9.8,"baseSeverity":"CRITICAL","confidentialityImpact":"HIGH","integrityImpact":"HIGH","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","version":"3.1"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-122","lang":"en","description":"CWE-122: Heap-based Buffer Overflow","type":"CWE"}]}],"providerMetadata":{"shortName":"GitHub_M","orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateUpdated":"2026-07-20T16:29:53.496Z"},"source":{"advisory":"GHSA-w5vg-6qmv-j63j","discovery":"UNKNOWN"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-07-22T00:00:00+00:00","options":[{"Exploitation":"none"},{"Automatable":"yes"},{"Technical Impact":"total"}],"role":"CISA Coordinator","version":"2.0.3","id":"CVE-2026-41252"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-07-23T03:56:20.804Z"}}]}}}