CVE-2026-28536

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{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "6.0.0"}}, {"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "5.1.0"}}], "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": "2026-04-18T09:54:47.753527+00:00", "value": {"mitigation_remediation": ["Apply the Huawei firmware update that addresses CVE-2026-28536 as published in the official support bulletin.", "If an update is not immediately available, disable or limit remote authentication or restrict network access to authentication services as per Huawei\u2019s temporary mitigation guidance.", "Reconfigure the device to enforce strong authentication policies, ensuring only authenticated users can access privileged functions and that local accounts have the minimum required permissions."], "summary": {"action": "Patch Immediately", "impact": "Authentication bypass leading to potential compromise of integrity and confidentiality"}, "threat_synthesis": {"affected_systems": "Huawei HarmonyOS versions 5.1.0 and 6.0.0 are impacted, as indicated by the vendor\u2019s official advisory and the associated Common Platform enumeration strings.", "description_and_impact": "The vulnerability is an authentication bypass in HarmonyOS\u2019s device authentication module. An attacker who exploits this flaw can gain unauthorized access to the device\u2019s internal functions, potentially leading to unauthorized data modification or leakage. The only stated consequences are loss of integrity and confidentiality, with no mention of denial of service or code execution.", "risk_and_exploitability": "The CVSS score of 9.6 signals a severe vulnerability. The EPSS score indicates a very low exploitation probability (<1%), and the vulnerability has not been catalogued by CISA. The attack vector is not explicitly disclosed, but the flaw resides in the device authentication layer, implying that an adversary would need to interact with the device\u2014potentially over local or remote interfaces\u2014to gain the bypass."}}}}, "created": "2026-03-06T15:08:02.944520+00:00", "title": "Authentication Bypass in HarmonyOS Device Module", "updated": "2026-04-18T10:00:10.335756+00:00", "vendors": ["huawei", "huawei$PRODUCT$harmonyos"]}