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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": "2026-04-16T12:27:15.163067+00:00", "value": {"mitigation_remediation": ["Apply the latest HarmonyOS firmware update provided by Huawei that addresses the race condition.", "Contact Huawei support to confirm the availability of a patch or to request a remediation plan for the diagnostics module.", "Limit access to the maintenance and diagnostics functionalities to authorized personnel only, enforcing least\u2011privilege controls and disabling unnecessary remote interfaces."], "summary": {"action": "Monitor", "impact": "Availability"}, "threat_synthesis": {"affected_systems": "The vulnerability is present in Huawei HarmonyOS versions 5.1.0 and 6.0.0, which are used on a range of consumer devices, including smartphones, laptops, and wearables.", "description_and_impact": "A race condition exists in the HarmonyOS maintenance and diagnostics module that can lead to an interruption of service availability. Exploitation does not enable code execution, data disclosure, or privilege escalation; it primarily disrupts the normal functioning of the affected module.", "risk_and_exploitability": "The CVSS score of 4.4 indicates a medium impact. The EPSS score of less than 1\u202f% and lack of inclusion in the KEV catalog suggest a low probability of exploitation in the wild. The attack likely requires access to the maintenance and diagnostics functions, possibly through local or privileged remote interfaces, and would cause only a denial-of-service condition rather than more severe consequences."}}}}, "created": "2026-03-06T15:07:51.233332+00:00", "title": "Race Condition in HarmonyOS Diagnostics Module Causes Availability Issues", "updated": "2026-04-16T12:30:06.119036+00:00", "vendors": ["huawei", "huawei$PRODUCT$harmonyos"]}