{"id":"CVE-2026-4526","aliases":["EUVD-2026-39396","GHSA-xq6v-3fpg-crf4"],"status":"published","title":"Global ZCL command parser missing minimum-length validation in EmberZNet v9.0.2","description":"In EmberZNet v9.0.2 and earlier, malformed global ZCL messages can trigger out-of-bounds reads in framework parsing logic and terminate the process. These messages must come from a device that has already joined the network, and no information leakage back to the sender was observed.","severity":{"version":"4.0","score":7.1,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-09","score":0.00436,"percentile":0.38115,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-125"],"published":"2026-06-25T13:32:26Z","modified":"2026-10-25T23:10:00Z","products":[{"vendor":"silabs","product":"emberznet"},{"vendor":"silabs.com","product":"emberznet"},{"vendor":"silicon labs","product":"emberznet"}],"references":[{"url":"https://siliconlabs.lightning.force.com/sfc/servlet.shepherd/document/download/069Vm00000pEGPQIA4?operationContext=S1","tags":["vendor-advisory","permissions-required","Permissions Required"]},{"url":"https://github.com/SiliconLabsSoftware/sisdk-release/","tags":["patch","Not Applicable"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-4526"},{"url":"https://github.com/SiliconLabsSoftware/sisdk-release"},{"url":"https://github.com/advisories/GHSA-xq6v-3fpg-crf4"}],"sources":{"cve":[{"id":"CVE-2026-4526","title":"Global ZCL command parser missing minimum-length validation in EmberZNet v9.0.2","description":"In EmberZNet v9.0.2 and earlier, malformed global ZCL messages can trigger out-of-bounds reads in framework parsing logic and terminate the process. These messages must come from a device that has already joined the network, and no information leakage back to the sender was observed.","status":"published","published":"2026-06-25T13:32:26.231Z","modified":"2026-06-25T14:04:28.563Z","cvss":[{"version":"4.0","score":7.1,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N","level":"high","assessor":"cna"}],"cwes":["CWE-125"],"updated_at":"2026-11-02T14:19:59.369956Z"}],"euvd":[{"id":"EUVD-2026-39396","description":"In EmberZNet v9.0.2 and earlier, malformed global ZCL messages can trigger out-of-bounds reads in framework parsing logic and terminate the process. These messages must come from a device that has already joined the network, and no information leakage back to the sender was observed.","status":"published","published":"2026-06-25T13:32:26Z","modified":"2026-06-25T14:04:28Z","cvss":[{"version":"4.0","score":7.1,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N","level":"high"}],"updated_at":"2026-11-02T18:20:29.213001Z"}],"ghsa":[{"id":"GHSA-xq6v-3fpg-crf4","title":"In EmberZNet v9.0.2 and earlier, malformed global ZCL messages can trigger out-of-bounds reads in...","description":"In EmberZNet v9.0.2 and earlier, malformed global ZCL messages can trigger out-of-bounds reads in framework parsing logic and terminate the process. These messages must come from a device that has already joined the network, and no information leakage back to the sender was observed.","status":"published","published":"2026-06-25T15:32:00Z","modified":"2026-06-25T21:32:34Z","cvss":[{"version":"4.0","score":7.1,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/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"},{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","level":"medium"}],"cwes":["CWE-125"],"updated_at":"2026-11-02T15:08:59.978633Z"}],"nvd":[{"id":"CVE-2026-4526","description":"In EmberZNet v9.0.2 and earlier, malformed global ZCL messages can trigger out-of-bounds reads in framework parsing logic and terminate the process. These messages must come from a device that has already joined the network, and no information leakage back to the sender was observed.","status":"published","published":"2026-06-25T14:16:42.313Z","modified":"2026-10-25T23:10:00.167Z","cvss":[{"version":"4.0","score":7.1,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/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"},{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","level":"medium","assessor":"primary"}],"cwes":["CWE-125"],"updated_at":"2026-11-02T14:12:26.045561Z"}]}}