Quick answers
- Is CVE-2026-41977 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-41977 being exploited in the wild.
- How severe is CVE-2026-41977?
- Medium severity, with a CVSS score of 5, published 9 June 2026.
- Which products and versions are affected?
- Huawei Emui 14.0.0, 14.2.0, 15.0.0; Huawei Harmonyos 4.0.0, 4.2.0, 4.3.0, 4.3.1, 5.1.0, 6.0.0, 6.1.0.
- Is there a fix for CVE-2026-41977?
- A patch was published on 2026-06-05: Huawei released security bulletins for Phones/Tablets and Vision products. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
- How is CVE-2026-41977 attacked?
- It is attacked with local access, in an operating system.
- Am I affected by CVE-2026-41977?
- 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
An integer overflow vulnerability (CWE-190) exists in the log service of Huawei's HarmonyOS and EMUI operating systems. The flaw is triggered when the service handles specifically crafted input, leading to a denial-of-service (DoS) condition. According to the CVSS vector, the attack requires local access and user interaction (UI:R), but does not require elevated privileges (PR:N). Successful exploitation allows an attacker to impact the availability of the log service and potentially the wider system. Patches were released as part of the June 2026 security update.
Affected products
- Huawei HarmonyOS 4.0.0, 4.2.0, 4.3.0, 4.3.1, 5.1.0, 6.0.0, 6.1.0
- Huawei EMUI 14.0.0, 14.2.0, 15.0.0
Timeline
- 2026-06-05: patched: Huawei released security bulletins for Phones/Tablets and Vision products.
- 2026-06-09: disclosed: NVD published the CVE record.