CyberSecBulletin
CVE-2026-101176NVD status: Deferred

Permission control vulnerability in the event notification management module.

Published Updated By the CyberSecBulletin desk

CVE-2026-101176 is a high-severity vulnerability in HarmonyOS from Huawei, with a CVSS 3.1 base score of 7.1 out of 10. It can be exploited remotely over the network by an unauthenticated attacker, but only if a user takes part, for example by opening a link or file. Affected HarmonyOS versions: 4.3.3; 4.3.1; 4.3.0, and others listed below. The record does not name a fixed version, so check the vendor advisory. There is no confirmed exploitation so far. EPSS estimates a 0.13% chance of exploitation within 30 days, which is low compared with other CVEs.

Next patch cycle

High severity with no evidence of exploitation so far.

What to do

  1. Check which version of HarmonyOS you run against the affected versions below, and install the vendor's latest release.
  2. Until you can update, restrict network access to the affected service so it is not reachable from untrusted networks.
  3. Because the attack needs a user to take part, warn users about unexpected links and files related to this product until it is patched.

Affected products and versions

VendorProductAffected versionsFixed in
HuaweiHarmonyOS4.3.3; 4.3.1; 4.3.0; 4.2.0; 4.0.0Not stated
HuaweiEMUI16.0.0; 15.0.0; 14.2.0; 14.0.0Not stated

Version data comes from the organisation that assigned the CVE. Confirm against the vendor advisory before deciding you are unaffected.

How the severity score breaks down

Attack vector
NetworkCan be exploited remotely over a network, including the internet.
Attack complexity
HighSuccess depends on conditions outside the attacker's control.
Privileges required
NoneNo account or login is needed.
User interaction
RequiredA user must take an action such as opening a file or link.
Scope
UnchangedImpact stays within the vulnerable component.
Confidentiality
LowSome restricted data can be read.
Integrity
HighData or code can be modified at will.
Availability
HighThe component can be taken down completely.

Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:H/A:H. Scored by CNA (huawei.com).

Official description

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

Source: the CVE record as published by its numbering authority, via NVD and CVE.org.

Timeline

  1. CVE record published.
  2. CISA published its SSVC assessment (exploitation: none, automatable: no, technical impact: partial).

References

Other vulnerabilities in HarmonyOS

All HarmonyOS vulnerabilities

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