{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-34859", "assignerOrgId": "25ac1063-e409-4190-8079-24548c77ea2e", "state": "PUBLISHED", "assignerShortName": "huawei", "dateReserved": "2026-03-31T01:11:13.701Z", "datePublished": "2026-04-13T04:07:39.550Z", "dateUpdated": "2026-04-13T13:27:45.919Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "25ac1063-e409-4190-8079-24548c77ea2e", "shortName": "huawei", "dateUpdated": "2026-04-13T04:07:39.550Z"}, "problemTypes": [{"descriptions": [{"lang": "en", "cweId": "CWE-416", "description": "CWE-416 Use after free", "type": "CWE"}]}], "affected": [{"vendor": "Huawei", "product": "HarmonyOS", "versions": [{"status": "affected", "version": "4.3.0"}, {"status": "affected", "version": "4.2.0"}], "defaultStatus": "unaffected"}, {"vendor": "Huawei", "product": "EMUI", "versions": [{"status": "affected", "version": "15.0.0"}, {"status": "affected", "version": "14.2.0"}], "defaultStatus": "unaffected"}], "descriptions": [{"lang": "en", "value": "UAF vulnerability in the kernel module.\nImpact: Successful exploitation of this vulnerability will affect availability and confidentiality.", "supportingMedia": [{"type": "text/html", "base64": false, "value": "UAF vulnerability in the kernel module.<br>Impact: Successful exploitation of this vulnerability will affect availability and confidentiality."}]}], "references": [{"url": "https://consumer.huawei.com/en/support/bulletin/2026/4/"}, {"url": "https://consumer.huawei.com/en/support/bulletinvision/2026/4/"}], "metrics": [{"format": "CVSS", "scenarios": [{"lang": "en", "value": "GENERAL"}], "cvssV3_1": {"version": "3.1", "attackVector": "LOCAL", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "availabilityImpact": "LOW", "baseSeverity": "MEDIUM", "baseScore": 5.9, "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L"}}], "source": {"discovery": "UNKNOWN"}, "x_generator": {"engine": "Vulnogram 1.0.1"}}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2026-04-13T13:27:38.779665Z", "id": "CVE-2026-34859", "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": "2026-04-13T13:27:45.919Z"}}]}}

{"dataType": "CVE_RECORD", "containers": {"adp": [{"title": "CISA ADP Vulnrichment", "metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2026-34859", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2026-04-13T13:27:38.779665Z"}}}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-04-13T13:27:42.600Z"}}], "cna": {"source": {"discovery": "UNKNOWN"}, "metrics": [{"format": "CVSS", "cvssV3_1": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 5.9, "attackVector": "LOCAL", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L", "integrityImpact": "LOW", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "LOW", "privilegesRequired": "NONE", "confidentialityImpact": "LOW"}, "scenarios": [{"lang": "en", "value": "GENERAL"}]}], "affected": [{"vendor": "Huawei", "product": "HarmonyOS", "versions": [{"status": "affected", "version": "4.3.0"}, {"status": "affected", "version": "4.2.0"}], "defaultStatus": "unaffected"}, {"vendor": "Huawei", "product": "EMUI", "versions": [{"status": "affected", "version": "15.0.0"}, {"status": "affected", "version": "14.2.0"}], "defaultStatus": "unaffected"}], "references": [{"url": "https://consumer.huawei.com/en/support/bulletin/2026/4/"}, {"url": "https://consumer.huawei.com/en/support/bulletinvision/2026/4/"}], "x_generator": {"engine": "Vulnogram 1.0.1"}, "descriptions": [{"lang": "en", "value": "UAF vulnerability in the kernel module.\nImpact: Successful exploitation of this vulnerability will affect availability and confidentiality.", "supportingMedia": [{"type": "text/html", "value": "UAF vulnerability in the kernel module.<br>Impact: Successful exploitation of this vulnerability will affect availability and confidentiality.", "base64": false}]}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-416", "description": "CWE-416 Use after free"}]}], "providerMetadata": {"orgId": "25ac1063-e409-4190-8079-24548c77ea2e", "shortName": "huawei", "dateUpdated": "2026-04-13T04:07:39.550Z"}}}, "cveMetadata": {"cveId": "CVE-2026-34859", "state": "PUBLISHED", "dateUpdated": "2026-04-13T13:27:45.919Z", "dateReserved": "2026-03-31T01:11:13.701Z", "assignerOrgId": "25ac1063-e409-4190-8079-24548c77ea2e", "datePublished": "2026-04-13T04:07:39.550Z", "assignerShortName": "huawei"}, "dataVersion": "5.2"}

{"cveTags": [], "descriptions": [{"lang": "en", "value": "UAF vulnerability in the kernel module.\nImpact: Successful exploitation of this vulnerability will affect availability and confidentiality."}], "id": "CVE-2026-34859", "lastModified": "2026-04-13T15:01:43.663", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "LOW", "baseScore": 5.9, "baseSeverity": "MEDIUM", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L", "version": "3.1"}, "exploitabilityScore": 2.5, "impactScore": 3.4, "source": "psirt@huawei.com", "type": "Secondary"}]}, "published": "2026-04-13T05:16:03.810", "references": [{"source": "psirt@huawei.com", "url": "https://consumer.huawei.com/en/support/bulletin/2026/4/"}, {"source": "psirt@huawei.com", "url": "https://consumer.huawei.com/en/support/bulletinvision/2026/4/"}], "sourceIdentifier": "psirt@huawei.com", "vulnStatus": "Undergoing Analysis", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-416"}], "source": "psirt@huawei.com", "type": "Secondary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "15.0.0"}}, {"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "14.2.0"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "EMUI", "source": "cna", "vendor": "Huawei"}, "product": "emui", "vendor": "huawei"}, {"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "4.3.0"}}, {"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "4.2.0"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "HarmonyOS", "source": "cna", "vendor": "Huawei"}, "product": "harmonyos", "vendor": "huawei"}], "analysis": {"en": {"generated_at": "2026-04-13T06:53:10.535696+00:00", "value": {"mitigation_remediation": ["Check Huaweis support bulletin for an official patch or update", "Apply the patch or update as soon as it becomes available", "If no patch exists, disable or unload the vulnerable kernel module", "Restrict local access to privileged users and enforce least\u2011privilege policies", "Monitor system logs for signs of memory corruption, crashes, or unexpected reboot events"], "summary": {"action": "Assess Impact", "impact": "Availability and confidentiality loss due to kernel module use\u2011after\u2011free"}, "threat_synthesis": {"affected_systems": "The flaw affects devices running Huawei EMUI and Huawei HarmonyOS. No specific affected versions are listed, so all releases of these operating systems that contain the vulnerable kernel module could be impacted.", "description_and_impact": "A use\u2011after\u2011free flaw exists in a kernel module used by Huawei EMUI and HarmonyOS. The vulnerability allows memory corruption that can affect system availability and leak confidential data. The weakness is classified as CWE\u2011416, representing a classic use\u2011after\u2011free that undermines core kernel integrity.", "risk_and_exploitability": "The CVSS base score is 5.9, indicating moderate severity. EPSS data is unavailable and the flaw is not listed in the CISA KEV catalog. Based on the description, it is inferred that exploitation requires local or privileged access to load or manipulate the kernel module, making remote exploitation unlikely. The risk is significant in environments where local users have privileged rights or where the module operates in a high\u2011privilege context."}}}}, "created": "2026-04-13T12:37:29.093515+00:00", "title": "Kernel Module Use\u2011After\u2011Free in Huawei EMUI and HarmonyOS Threatens Availability and Confidentiality", "updated": "2026-04-13T12:53:17.015491+00:00", "vendors": ["huawei", "huawei$PRODUCT$emui", "huawei$PRODUCT$harmonyos"]}