Huawei Bluetooth OOB Char Read CVE-2026-28540
CVE-2026-28540 Published on March 5, 2026
Out-of-bounds character read vulnerability in Bluetooth. Impact: Successful exploitation of this vulnerability may affect service confidentiality.
Vulnerability Analysis
CVE-2026-28540 is exploitable with local system access, and does not require authorization privileges or user interaction. This vulnerability is considered to have a low attack complexity. The potential impact of an exploit of this vulnerability is considered to have a small impact on confidentiality, a small impact on integrity and availability.
Weakness Type
Improper Neutralization of Null Byte or NUL Character
The software receives input from an upstream component, but it does not neutralize or incorrectly neutralizes NUL characters or null bytes when they are sent to a downstream component. As data is parsed, an injected NUL character or null byte may cause the software to believe the input is terminated earlier than it actually is, or otherwise cause the input to be misinterpreted. This could then be used to inject potentially dangerous input that occurs after the null byte or otherwise bypass validation routines and other protection mechanisms.
Products Associated with CVE-2026-28540
Want to know whenever a new CVE is published for Huawei Harmonyos? stack.watch will email you.
Affected Versions
Huawei HarmonyOS:- Version 6.0.0 is affected.
- Version 5.1.0 is affected.