{"dataType":"CVE_RECORD","dataVersion":"5.1","cveMetadata":{"cveId":"CVE-2025-1221","assignerOrgId":"030b2754-1501-44a4-bef8-48be86a33bf4","state":"PUBLISHED","assignerShortName":"Silabs","dateReserved":"2025-02-11T05:43:30.180Z","datePublished":"2025-07-30T08:09:19.214Z","dateUpdated":"2025-07-30T13:40:39.039Z"},"containers":{"cna":{"affected":[{"defaultStatus":"unaffected","packageName":"GSDK","product":"Zigbee","repo":"https://github.com/SiliconLabs/gecko_sdk","vendor":"silabs.com","versions":[{"lessThanOrEqual":"4.3.3","status":"affected","version":"0","versionType":"semver"},{"status":"affected","version":"4.4.3","versionType":"semver"}]},{"defaultStatus":"unaffected","packageName":"SiSDK","product":"Zigbee","repo":"https://github.com/SiliconLabs/simplicity_sdk","vendor":"silabs.com","versions":[{"lessThanOrEqual":"2024.6.1","status":"affected","version":"0","versionType":"semver"}]}],"descriptions":[{"lang":"en","supportingMedia":[{"base64":false,"type":"text/html","value":"A Zigbee Radio Co-Processor (RCP), which is using SiLabs EmberZNet Zigbee stack, was unable to send messages to the host system (CPCd) due to heavy Zigbee traffic, resulting in a Denial of Service (DoS) attack, Only hard reset will bring the device to normal operation<br>"}],"value":"A Zigbee Radio Co-Processor (RCP), which is using SiLabs EmberZNet Zigbee stack, was unable to send messages to the host system (CPCd) due to heavy Zigbee traffic, resulting in a Denial of Service (DoS) attack, Only hard reset will bring the device to normal operation"}],"impacts":[{"capecId":"CAPEC-26","descriptions":[{"lang":"en","value":"CAPEC-26 Leveraging Race Conditions"}]}],"metrics":[{"cvssV4_0":{"Automatable":"NOT_DEFINED","Recovery":"NOT_DEFINED","Safety":"NOT_DEFINED","attackComplexity":"LOW","attackRequirements":"PRESENT","attackVector":"ADJACENT","baseScore":5.9,"baseSeverity":"MEDIUM","privilegesRequired":"LOW","providerUrgency":"NOT_DEFINED","subAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","userInteraction":"NONE","valueDensity":"NOT_DEFINED","vectorString":"CVSS:4.0/AV:A/AC:L/AT:P/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N","version":"4.0","vulnAvailabilityImpact":"HIGH","vulnConfidentialityImpact":"NONE","vulnIntegrityImpact":"NONE","vulnerabilityResponseEffort":"NOT_DEFINED"},"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}]}],"problemTypes":[{"descriptions":[{"cweId":"CWE-667","description":"CWE-667 Improper Locking","lang":"en","type":"CWE"}]}],"providerMetadata":{"orgId":"030b2754-1501-44a4-bef8-48be86a33bf4","shortName":"Silabs","dateUpdated":"2025-07-30T08:09:19.214Z"},"references":[{"tags":["release-notes"],"url":"https://www.silabs.com/documents/public/release-notes/emberznet-release-notes-7.4.4.0.pdf"},{"tags":["release-notes"],"url":"https://www.silabs.com/documents/public/release-notes/emberznet-release-notes-8.0.2.0.pdf"},{"tags":["release-notes"],"url":"https://www.silabs.com/documents/public/release-notes/emberznet-release-notes-8.1.0.0.pdf"},{"tags":["vendor-advisory","permissions-required"],"url":"https://community.silabs.com/068Vm00000Sadyn"}],"source":{"discovery":"UNKNOWN"},"title":"DoS in Zigbee device due to heavy traffic","x_generator":{"engine":"Vulnogram 0.2.0"}},"adp":[{"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2025-07-30T13:40:11.968497Z","id":"CVE-2025-1221","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":"2025-07-30T13:40:39.039Z"}}]}}