{"id":"CVE-2026-102724","aliases":["EUVD-2026-89190","GHSA-8rp9-5755-q75w","GHSA-w772-4j4q-rgh7"],"status":"published","title":"NULL pointer dereference when evicting the last MSRP attribute in a participant's list","description":"In Eclipse ThreadX NetX Duo versions 6.4.0 through 6.5.2.202603a, built with VLAN and SRP support, evicting the last attribute in an MRP participant's list writes through a null successor pointer. An unauthenticated station on the same Layer 2 segment can fault the MRP worker thread by declaring one MSRP attribute and withdrawing it, and ordinary withdrawals by legitimate stations reach the same path.","severity":{"version":"4.0","score":7.1,"vector":"CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-10","score":0.00154,"percentile":0.04521,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-476"],"published":"2026-09-29T17:49:52Z","modified":"2026-11-04T10:28:13Z","products":[{"vendor":"eclipse foundation","product":"eclipse threadx netx duo"}],"references":[{"url":"https://github.com/eclipse-threadx/netxduo/security/advisories/GHSA-8rp9-5755-q75w","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-102724","tags":["advisory"]},{"url":"https://github.com/advisories/GHSA-w772-4j4q-rgh7"},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/102xxx/CVE-2026-102724.json","tags":["advisory"]}],"sources":{"cve":[{"id":"CVE-2026-102724","title":"NULL pointer dereference when evicting the last MSRP attribute in a participant's list","description":"In Eclipse ThreadX NetX Duo versions 6.4.0 through 6.5.2.202603a, built with VLAN and SRP support, evicting the last attribute in an MRP participant's list writes through a null successor pointer. An unauthenticated station on the same Layer 2 segment can fault the MRP worker thread by declaring one MSRP attribute and withdrawing it, and ordinary withdrawals by legitimate stations reach the same path.","status":"published","published":"2026-09-29T17:49:52.455Z","modified":"2026-11-04T10:28:13.15Z","cvss":[{"version":"4.0","score":7.1,"vector":"CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N","level":"high","assessor":"cna"}],"cwes":["CWE-476"],"updated_at":"2026-11-04T11:59:23.805019Z"}],"euvd":[{"id":"EUVD-2026-89190","description":"In Eclipse ThreadX NetX Duo versions 6.4.0 through 6.5.2.202603a, built with VLAN and SRP support, evicting the last attribute in an MRP participant's list writes through a null successor pointer. An unauthenticated station on the same Layer 2 segment can fault the MRP worker thread by declaring one MSRP attribute and withdrawing it, and ordinary withdrawals by legitimate stations reach the same path.","status":"published","published":"2026-09-29T17:49:52Z","modified":"2026-11-04T10:28:13Z","cvss":[{"version":"4.0","score":7.1,"vector":"CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N","level":"high"}],"updated_at":"2026-11-04T12:02:58.009925Z"}],"ghsa":[{"id":"GHSA-w772-4j4q-rgh7","title":"NULL Pointer Dereference When Evicting the Sole MSRP Attribute","description":"NULL Pointer Dereference When Evicting the Sole MSRP Attribute","status":"published","published":"2026-09-29T18:32:02Z","modified":"2026-09-29T18:32:02Z","cvss":[{"version":"4.0","score":6,"vector":"CVSS:4.0/AV:A/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/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","level":"medium"}],"cwes":["CWE-476"],"updated_at":"2026-11-02T15:12:33.840327Z"}],"nvd":[{"id":"CVE-2026-102724","description":"In Eclipse ThreadX NetX Duo versions 6.4.0 through 6.5.2.202603a, built with VLAN and SRP support, evicting the last attribute in an MRP participant's list writes through a null successor pointer. An unauthenticated station on the same Layer 2 segment can fault the MRP worker thread by declaring one MSRP attribute and withdrawing it, and ordinary withdrawals by legitimate stations reach the same path.","status":"published","published":"2026-09-29T18:17:11.96Z","modified":"2026-11-04T11:17:08.53Z","cvss":[{"version":"4.0","score":7.1,"vector":"CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/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","level":"high","assessor":"secondary"}],"cwes":["CWE-476"],"updated_at":"2026-11-04T14:01:26.882474Z"}],"osv":[{"id":"CVE-2026-102724","title":"NULL pointer dereference when evicting the last MSRP attribute in a participant's list","description":"In Eclipse ThreadX NetX Duo versions 6.4.0 through 6.5.2.202603a, built with VLAN and SRP support, evicting the last attribute in an MRP participant's list writes through a null successor pointer. An unauthenticated station on the same Layer 2 segment can fault the MRP worker thread by declaring one MSRP attribute and withdrawing it, and ordinary withdrawals by legitimate stations reach the same path.","status":"published","published":"2026-09-29T17:49:52.455Z","modified":"2026-11-07T10:47:27.802551034Z","cvss":[{"version":"4.0","score":7.1,"vector":"CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N","level":"high"}],"cwes":["CWE-476"],"updated_at":"2026-11-07T11:15:38.581573Z"}]}}