{"id":"CVE-2026-102761","revision":"fd2820f83dff4a4fab25076e149d2d00","records":[{"revision":"fd2820f83dff4a4fab25076e149d2d00","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-102761","aliases":[],"title":"NetX Duo's WebSocket client resets the unmasking cursor to the first `NX_PACKET` each time it advances through a chained packet, while the loop's upper bound belongs to the current packet. With the standard contiguous packet-pool layout, a …","description":"NetX Duo's WebSocket client resets the unmasking cursor to the first `NX_PACKET` each time it advances through a chained packet, while the loop's upper bound belongs to the current packet. With the standard contiguous packet-pool layout, a masked server frame split across two packets therefore drives the XOR loop through the first packet's unused payload area and on through the second packet's `NX_PACKET` control block.\n\n\n\nThe four-byte WebSocket masking key controls the bytes written, so the corruption is attacker-chosen rather than incidental.","state":0,"publishedAt":"2026-09-29T17:30:45.499+00:00","modifiedAt":"2026-09-30T20:41:01.935+00:00","affected":[{"ecosystem":"Vendor product","name":"NetX Duo","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"Eclipse Foundation\",\n                    \"product\": \"NetX Duo\",\n                    \"packageName\": \"NetX Duo\",\n                    \"versions\": [\n                        {\n                            \"status\": \"affected\",\n                            \"version\": \"6.2.0\",\n                            \"lessThanOrEqual\": \"6.5.1.202602\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"status\": \"unaffected\",\n                            \"version\": \"6.5.2.202603\"\n                        }\n                    ],\n                    \"defaultStatus\": \"unaffected\"\n                }"}],"metrics":[{"system":"CVSS 4.0","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","score":9.3,"severity":"CRITICAL"}],"references":["https://github.com/eclipse-threadx/netxduo/security/advisories/GHSA-6xgx-v7gw-qjph"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-102761","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-102761","identifiers":["CVE-2026-102761"]},"retained":false,"historicalAffected":[]}],"coverage":[]}