EUVD-2026-74597
GHSA-qrx4-2rjp-2c5x
Severity by source
AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
Network-reachable unauthenticated permission bypass in notification module causes scope-changed availability impact; no confidentiality or integrity effect is established by available evidence.
Primary rating from Vendor (huawei).
CVSS VectorVendor: huawei
Lifecycle Timeline
3DescriptionCVE.org
Permission control vulnerability in the event notification module. Impact: Successful exploitation of this vulnerability may affect service confidentiality.
AnalysisAI
Unauthenticated remote availability disruption in Huawei HarmonyOS 6.1.0 allows network-accessible attackers to exploit missing permission controls in the event notification module, causing high-severity service outages that propagate beyond the vulnerable component via a scope change. The vulnerability is rooted in CWE-264 (Permissions, Privileges, and Access Controls) and carries a CVSS 3.1 base score of 8.6 with no privilege or user-interaction requirements. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | No authentication or user interaction is required - the CVSS vector (PR:N/UI:N) confirms unauthenticated, no-interaction exploitation. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS 8.6 vector (AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H) describes a low-friction, no-authentication, network-reachable availability attack with cross-scope impact - a profile that is in principle automatable and scalable. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | Full exploit scenario with step-by-step reproduction available after sign-in. |
| Remediation | Huawei has addressed this vulnerability in its September 2026 security bulletin. … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours, inventory all HarmonyOS 6.1.0 devices across the organization, prioritizing those deployed in critical infrastructure or customer-facing systems, and retrieve Huawei's September 2026 security bulletin for remediation options. …
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External POC / Exploit Code
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