CVE-2026-28542
Published: 05 March 2026
Summary
CVE-2026-28542 is a high-severity Improper Handling of Exceptional Conditions (CWE-755) vulnerability in Huawei Emui. Its CVSS base score is 7.3 (High).
Operationally, exploitation aligns with the MITRE ATT&CK technique Exploitation for Privilege Escalation (T1068); ranked at the 0.6th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.
Threat & Defense at a Glance
Threat & Defense Details
Likely Mitigating ControlsAI
Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.
Provides defined handling (alert and additional actions) for the exceptional condition of audit logging failure.
Supplies a concrete handling action (safe mode) for exceptional conditions, mitigating risks from improper or absent handling that could allow continued attacks.
By preparing users for contingency scenarios, the control promotes proper handling of exceptional conditions instead of default or unsafe behaviors.
An updated contingency plan defines current actions for exceptional conditions, reducing the window for attackers to exploit improper handling leading to system failure.
Procedures ensure proper handling of exceptional conditions to support effective incident response.
Incident response testing confirms proper handling of exceptional conditions to limit exploit impact.
Gives users guidance on incident handling, reducing improper handling of exceptional conditions that could stem from exploited weaknesses.
Enforces structured response to exceptional conditions so the system cannot remain in an unsafe state.
MITRE ATT&CK Enterprise TechniquesAI
Why these techniques?
Permission bypass in system service framework allows local unprivileged attacker to obtain unauthorized sensitive data access (maps to T1005) and achieve effective privilege escalation via exploitation (maps to T1068).
NVD Description
Permission bypass vulnerability in the system service framework. Impact: Successful exploitation of this vulnerability may affect availability.
Deeper analysisAI
CVE-2026-28542 is a permission bypass vulnerability in the system service framework affecting Huawei consumer devices, including wearables. Published on 2026-03-05, it carries a CVSS v3.1 base score of 7.3 (AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:L) and is associated with CWE-755 (NVD-CWE-noinfo). The vulnerability enables improper enforcement of permissions, with successful exploitation potentially impacting availability alongside other effects indicated by the CVSS vector.
A local attacker requires only local access to the system, with low attack complexity, no privileges, and no user interaction. Exploitation can result in high confidentiality impact through unauthorized access to sensitive data, alongside low impacts to integrity and availability.
Huawei has published security bulletins in March 2026 for consumer products and wearables, available at https://consumer.huawei.com/en/support/bulletin/2026/3/ and https://consumer.huawei.com/en/support/bulletinwearables/2026/3/, which provide details on patches and mitigation measures.
Details
- CWE(s)