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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": "2026-04-18T09:53:58.071517+00:00", "value": {"mitigation_remediation": ["Apply the latest HarmonyOS firmware updates from Huawei as soon as a patch is released, ensuring the vulnerability is corrected.", "Implement strict input validation and bounds checking on all data passed to the certificate management module to mitigate incorrect data processing.", "If a patch is not yet available, consider disabling or restricting certificate handling features that are not essential to your device\u2019s operation."], "summary": {"action": "Assess Impact", "impact": "Service confidentiality compromise"}, "threat_synthesis": {"affected_systems": "The flaw affects Huawei HarmonyOS releases 5.1.0 and 6.0.0, as identified by the listed CPE entries. No other product families or builds are indicated as impacted.", "description_and_impact": "The vulnerability involves improper handling of data within Huawei HarmonyOS\u2019s certificate management module. If successfully exploited, it could compromise the confidentiality of services that rely on certificate processing, potentially exposing sensitive information managed by the system. No claim is made that an attacker can arbitrarily tamper with certificate data.", "risk_and_exploitability": "The CVSS score of 6.2 indicates medium severity, while the EPSS score of < 1% indicates a very low likelihood of exploitation at present. The vulnerability is not listed in CISA\u2019s KEV catalog, implying it has not been observed in large\u2011scale attacks. The attack vector is not explicitly described; it is inferred that a process or user capable of supplying custom data to the certificate management module could trigger the issue, possibly requiring elevated privileges or local system access. The overall risk profile therefore centers on specialized attackers who can influence certificate\u2011related data handling to compromise confidentiality."}}}}, "created": "2026-03-06T15:07:53.688671+00:00", "title": "Certificate Management Data Processing Vulnerability Threatening Service Confidentiality", "updated": "2026-04-18T10:00:10.334538+00:00", "vendors": ["huawei", "huawei$PRODUCT$harmonyos"]}