EUVD-2026-35361
GHSA-x52j-f25q-95rh
Severity by source
AV:L/AC:L/PR:N/UI:R/S:C/C:N/I:N/A:L
Primary rating from NVD · only source for this CVE.
CVSS VectorNVD
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:N/I:N/A:L
Lifecycle Timeline
1DescriptionCVE.org
Permission control vulnerability in service notifications. Impact: Successful exploitation of this vulnerability may affect availability.
AnalysisAI
Permission control weakness in the service notifications component of Huawei HarmonyOS and EMUI allows a local, unprivileged attacker - with user interaction - to partially degrade availability across a changed scope boundary. Rooted in CWE-264 (Permissions, Privileges, and Access Controls), the flaw permits improper manipulation of notification service permissions, with impact reaching beyond the immediately vulnerable component as indicated by the CVSS Scope:Changed attribute. No public exploit identified at time of analysis, and the vulnerability is not listed in CISA KEV; the low CVSS score of 3.6 reflects constrained real-world impact limited to availability.
Technical ContextAI
The vulnerability resides in the service notifications subsystem of Huawei HarmonyOS and EMUI, both mobile operating system platforms developed by Huawei. CWE-264 (Permissions, Privileges, and Access Controls) indicates that the root cause is an inadequate enforcement of permission boundaries governing which callers or components may interact with or modify the notifications service. The CVSS Scope:Changed (S:C) attribute is technically significant: it signals that exploitation crosses a security boundary, meaning the availability impact extends to components or processes outside the directly vulnerable notifications handler. The local attack vector (AV:L) aligns with Android/HarmonyOS app process isolation models, where a locally executing app could abuse misconfigured inter-process communication or intent-based notification APIs without requiring elevated privileges. Affected products are confirmed by CPE entries cpe:2.3:a:huawei:harmonyos:*:*:*:*:*:*:*:* and cpe:2.3:a:huawei:emui:*:*:*:*:*:*:*:*, with version ranges unspecified in the CPE data (wildcard).
RemediationAI
Apply the patch issued in Huawei's June 2026 security bulletin, available at https://consumer.huawei.com/en/support/bulletin/2026/6/ and https://consumer.huawei.com/en/support/bulletinvision/2026/6/. No exact fixed version number was specified in the available intelligence data, so the precise patched OS/EMUI build must be confirmed directly from the bulletin. Patch available per vendor advisory. As a compensating control prior to patching, administrators managing enterprise HarmonyOS or EMUI device fleets via MDM should consider restricting third-party app notification permissions through policy enforcement, which would reduce the attack surface by limiting which applications can interact with the notifications service. This workaround carries a trade-off of degraded notification functionality for end users. Given the low severity and local-only attack vector, patching at the next standard device update cycle is reasonable for most environments.
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External POC / Exploit Code
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