Quick answers
- Is CVE-2026-49309 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-49309 being exploited in the wild.
- How severe is CVE-2026-49309?
- Medium severity, with a CVSS score of 4.8, 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-2026-49309?
- 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-2026-49309 attacked?
- It is attacked with local access, in an operating system.
- Am I affected by CVE-2026-49309?
- 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 a permission control vulnerability (improper access control) in the Settings module of HarmonyOS and EMUI. The vulnerability allows unauthorized access to confidential settings information due to inadequate permission validation. The exact attack vector and preconditions are not detailed in the advisory, but the medium severity rating and confidentiality impact suggest the vulnerability requires some level of access or user interaction to exploit. No patch details are provided in the advisory, though Huawei is addressing this through monthly security updates for affected versions.
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: CVE-2026-49309 published
- 2026-09-05: advisory: Huawei security bulletin released