{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-4526","assignerOrgId":"030b2754-1501-44a4-bef8-48be86a33bf4","state":"PUBLISHED","assignerShortName":"Silabs","dateReserved":"2026-03-20T18:28:19.557Z","datePublished":"2026-06-25T13:32:26.231Z","dateUpdated":"2026-06-25T14:04:28.563Z"},"containers":{"cna":{"providerMetadata":{"orgId":"030b2754-1501-44a4-bef8-48be86a33bf4","shortName":"Silabs","dateUpdated":"2026-06-25T13:52:32.844Z"},"title":"Global ZCL command parser missing minimum-length validation in EmberZNet v9.0.2","problemTypes":[{"descriptions":[{"lang":"en","cweId":"CWE-125","description":"CWE-125: Out-of-bounds Read,  CWE-130: Improper Handling of Length Parameter Inconsistency","type":"CWE"}]}],"impacts":[{"capecId":"CAPEC-153","descriptions":[{"lang":"en","value":"CAPEC-153: Input Data Manipulation"}]}],"affected":[{"vendor":"Silicon Labs","product":"EmberZNet","packageName":"EmberZNet","repo":"https://github.com/SiliconLabs/simplicity_sdk","versions":[{"status":"affected","version":"0","lessThanOrEqual":"9.0.2","versionType":"semver"}],"defaultStatus":"unaffected"}],"descriptions":[{"lang":"en","value":"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.","supportingMedia":[{"type":"text/html","base64":false,"value":"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."}]}],"references":[{"url":"https://siliconlabs.lightning.force.com/sfc/servlet.shepherd/document/download/069Vm00000pEGPQIA4?operationContext=S1","tags":["vendor-advisory","permissions-required"]},{"url":"https://github.com/SiliconLabsSoftware/sisdk-release/","tags":["patch"]}],"metrics":[{"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}],"cvssV4_0":{"attackVector":"NETWORK","attackComplexity":"LOW","attackRequirements":"NONE","privilegesRequired":"LOW","userInteraction":"NONE","vulnConfidentialityImpact":"NONE","subConfidentialityImpact":"NONE","vulnIntegrityImpact":"NONE","subIntegrityImpact":"NONE","vulnAvailabilityImpact":"HIGH","subAvailabilityImpact":"NONE","exploitMaturity":"NOT_DEFINED","Safety":"NOT_DEFINED","Automatable":"NOT_DEFINED","Recovery":"NOT_DEFINED","valueDensity":"NOT_DEFINED","vulnerabilityResponseEffort":"NOT_DEFINED","providerUrgency":"NOT_DEFINED","version":"4.0","baseSeverity":"HIGH","baseScore":7.1,"vectorString":"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"}}],"credits":[{"lang":"en","value":"Junming C. (@Chapoly1305) and Prof. Qiang Zeng of George Mason University","type":"finder"}],"source":{"discovery":"INTERNAL"},"x_generator":{"engine":"Vulnogram 1.0.2"}},"adp":[{"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-06-25T14:04:19.829011Z","id":"CVE-2026-4526","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2026-06-25T14:04:28.563Z"}}]}}