Is CVE-2026-49311 exploited in the wild?

No. Junglewise Threat Intelligence has no report of CVE-2026-49311 being exploited in the wild.

How severe is CVE-2026-49311?

Medium severity, with a CVSS score of 6.2, published 9 September 2026.

Which products and versions are affected?

Huawei Emui 16.0.0, 15.0.0, 14.2.0, 14.0.0; Huawei Harmonyos 6.1.0.

Is there a fix for CVE-2026-49311?

No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

How is CVE-2026-49311 attacked?

It is attacked with local access.

Am I affected by CVE-2026-49311?

Check whether you run Huawei Emui or Huawei Harmonyos at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

CVE-2026-49311: Huawei HarmonyOS permission control vulnerability in event notification module

CVE-2026-49311 · Severity: medium · CVSS 6.2 · Published 2026-09-09

Huawei HarmonyOS contains a permission control flaw in its event notification system that allows unauthorized access or manipulation of notification events. Successful exploitation can disrupt system availability and prevent notifications from functioning correctly, affecting user experience and potentially impacting critical alerts on phones, tablets, and laptops.

Technologies: Huawei Emui, Huawei Harmonyos. Vendors: Huawei.

Quick answers

Is CVE-2026-49311 exploited in the wild?: No. Junglewise Threat Intelligence has no report of CVE-2026-49311 being exploited in the wild.
How severe is CVE-2026-49311?: Medium severity, with a CVSS score of 6.2, published 9 September 2026.
Which products and versions are affected?: Huawei Emui 16.0.0, 15.0.0, 14.2.0, 14.0.0; Huawei Harmonyos 6.1.0.
Is there a fix for CVE-2026-49311?: No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
How is CVE-2026-49311 attacked?: It is attacked with local access.
Am I affected by CVE-2026-49311?: Check whether you run Huawei Emui or Huawei Harmonyos at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Technical details

This is an improper permission control vulnerability (CWE-276) in HarmonyOS's event notification module. The flaw allows attackers to bypass permission checks governing event notification handling. The vulnerability is reachable via local attack vectors on affected devices. Successful exploitation may lead to denial of service or unauthorized access to notification streams. Patches are available through Huawei's September 2026 security updates for HarmonyOS 6.1.0 and related versions.

Affected products

Huawei HarmonyOS 6.1.0
Huawei EMUI 16.0.0, 15.0.0, 14.2.0, 14.0.0

Timeline

2026-09-09: disclosed
2026-09-05: advisory: Huawei security bulletin published

References

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