CVE-2026-49315: Huawei HarmonyOS input device module denial of service

CVE-2026-49315 · Severity: high · CVSS 7.1 · Published 2026-09-09

A denial-of-service vulnerability exists in the input device module of Huawei's HarmonyOS operating system, which powers smartphones, tablets, and smart TVs. An attacker can exploit this flaw to crash or hang affected devices, disrupting user access and operations. The vulnerability affects multiple widely-deployed HarmonyOS and EMUI versions across Huawei consumer devices.

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

Quick answers

Is CVE-2026-49315 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2026-49315 being exploited in the wild.
How severe is CVE-2026-49315?
High severity, with a CVSS score of 7.1, published 9 September 2026.
Which products and versions are affected?
Huawei Emui 14.0.0, 14.2.0, 15.0.0, 16.0.0; Huawei Harmonyos 4.0.0, 4.2.0, 4.3.0, 4.3.1, 4.3.3.
Is there a fix for CVE-2026-49315?
A patch was published on 2026-09: Security update released by Huawei in September 2026 Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
How is CVE-2026-49315 attacked?
It is attacked over the network, in an operating system.
Am I affected by CVE-2026-49315?
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

CVE-2026-49315 is a denial-of-service vulnerability in the input device module of Huawei HarmonyOS and EMUI. The vulnerability allows an attacker to trigger an availability impact through the input device subsystem; the specific attack vector (whether local, network, or user interaction) is not detailed in the advisory. The flaw affects HarmonyOS versions 4.0.0 through 4.3.3, as well as EMUI versions 14.0.0 through 16.0.0. Huawei has released patches as part of their September 2026 security update. No evidence of active exploitation in the wild has been reported.

Affected products

  • Huawei HarmonyOS 4.0.0, 4.2.0, 4.3.0, 4.3.1, 4.3.3
  • Huawei EMUI 14.0.0, 14.2.0, 15.0.0, 16.0.0

Timeline

  • 2026-09-09: disclosed: Vulnerability published in NVD
  • 2026-09: patched: Security update released by Huawei in September 2026

References

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