---
id: "CVE-2026-101176"
kind: "vulnerability"
aliases: ["CVE-2026-101176"]
title: "Huawei HarmonyOS and EMUI: permission flaw in event notification management module can expose service data"
severity: "high"
cvss: 7.1
epss: null
exploited: false
status: "open"
category: "other"
products: [{"name": "HarmonyOS", "fixed": ["October 2026 security update"], "affected": "4.0.0, 4.2.0, 4.3.0, 4.3.1, 4.3.3", "ecosystem": "vendor"}, {"name": "EMUI", "fixed": ["October 2026 security update"], "affected": "14.0.0, 14.2.0, 15.0.0, 16.0.0", "ecosystem": "vendor"}]
ecosystems: []
tags: ["emui", "harmonyos", "huawei", "mobile", "other"]
not_affected_if: []
published_at: "2026-11-02T07:18:02+00:00"
first_seen_at: "2026-11-02T07:21:56+00:00"
updated_at: "2026-11-02T07:23:00+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-101176", "first_seen_at": "2026-11-02T07:21:56+00:00"}, {"source": "analyst", "url": null, "first_seen_at": "2026-11-02T07:23:00+00:00"}]
---

# Huawei HarmonyOS and EMUI: permission flaw in event notification management module can expose service data

Huawei's October 2026 phone/tablet bulletin lists a permission control flaw in the event notification management module of HarmonyOS 4.0.0-4.3.3 and EMUI 14.0.0-16.0.0, rated High, which may affect service confidentiality. Huawei lists it among the patches in the October 2026 security update. No exploitation or public PoC is stated.

_Summary, check and fix written by a model from the sources; labelled as such._

## Affected

- vendor:HarmonyOS affected 4.0.0, 4.2.0, 4.3.0, 4.3.1, 4.3.3 fixed October 2026 security update
- vendor:EMUI affected 14.0.0, 14.2.0, 15.0.0, 16.0.0 fixed October 2026 security update

## How to check

Check your device's HarmonyOS/EMUI version (Settings > About) against the affected list: HarmonyOS 4.0.0, 4.2.0, 4.3.0, 4.3.1, 4.3.3; EMUI 14.0.0, 14.2.0, 15.0.0, 16.0.0. Then check Settings > System & updates > Software update for the October 2026 patch.

## Fix

Install the October 2026 HUAWEI security update (patch listed in the October 2026 bulletin). The bulletin gives no separate fixed build number.

## Timeline

- 2026-11-02T07:21:56+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-101176
- 2026-11-02T07:23:00+00:00 analyst — Primary source: Huawei Oct 2026 phone/tablet bulletin lists CVE-2026-101176 (High, HarmonyOS/EMUI versions). No exploitation or PoC found; no social search done. Fix is the monthly update, no build number.

## Documents

- [advisory] Security Bulletins for HUAWEI Phones/Tablets, October 2026 https://consumer.huawei.com/en/support/bulletin/2026/10/

## From the sources

Permission control vulnerability in the event notification management module.
Impact: Successful exploitation of this vulnerability may affect service confidentiality.

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_Free to read at a human pace. An API with keys and an MCP server are in preparation; early access: hello@infrastack.ai_