CVE-2025-58314 Overview
CVE-2025-58314 is an out-of-bounds read vulnerability [CWE-125] affecting the component driver module in Huawei EMUI and HarmonyOS. The flaw allows a local, authenticated attacker to access invalid memory regions. Successful exploitation impacts availability and confidentiality on affected devices.
Huawei disclosed the issue in its November 2025 security bulletin. The vulnerability requires local access with low privileges and no user interaction. Affected releases include multiple EMUI 12.x through 15.x builds and HarmonyOS 2.0.0 through 6.0.0.
Critical Impact
A local attacker with low privileges can trigger invalid memory access in the driver module, potentially leaking sensitive kernel data and causing system-level denial of service.
Affected Products
- Huawei EMUI 12.0.0, 13.0.0, 14.0.0, 14.2.0, 15.0.0
- Huawei HarmonyOS 2.0.0, 3.0.0, 3.1.0, 4.0.0, 4.2.0, 4.3.0, 4.3.1
- Huawei HarmonyOS 5.0.1, 5.1.0, 6.0.0
Discovery Timeline
- 2025-11-28 - CVE-2025-58314 published to NVD
- 2026-06-17 - Last updated in NVD database
Technical Details for CVE-2025-58314
Vulnerability Analysis
The vulnerability is classified as an out-of-bounds read [CWE-125] within a component driver module in EMUI and HarmonyOS. A driver module accepts input that references memory outside the intended buffer bounds. When the driver processes this input, it reads memory that is either uninitialized or belongs to unrelated kernel structures.
This behavior exposes kernel memory contents to the calling context, breaking process isolation. Depending on the data returned, an attacker can extract sensitive material such as pointers, credentials cached in kernel space, or data belonging to other processes. The same code path can also trigger a system crash when the read touches unmapped pages, producing a denial-of-service condition.
The CVSS metrics indicate a local attack vector with low attack complexity and low privileges required. No user interaction is needed, which enables silent exploitation from any process that can reach the driver interface.
Root Cause
The root cause is missing or incorrect bounds validation before a memory read operation in the driver module. User-controlled indices or lengths flow into a read path without being clamped against the actual size of the target buffer. The absence of bounds enforcement allows the driver to dereference invalid addresses.
Attack Vector
Exploitation requires local execution on the device, typically via a malicious application already installed and running with standard privileges. The attacker interacts with the vulnerable driver through its exposed interface (for example, an ioctl handler or a similar system call surface) using crafted parameters that induce the out-of-bounds read.
The vulnerability manifests in the driver's read handler. See the Huawei Security Bulletin for vendor-provided technical details.
Detection Methods for CVE-2025-58314
Indicators of Compromise
- Unexpected kernel oops or panic entries in device logs referencing the component driver module.
- Applications repeatedly invoking driver interfaces with abnormal length or offset parameters.
- Crash dumps showing invalid memory access faults originating from driver read paths.
Detection Strategies
- Monitor Android/HarmonyOS system logs for SIGSEGV and kernel fault signatures tied to driver modules.
- Track installed applications interacting with low-level driver interfaces outside their expected function.
- Correlate repeated driver-related crashes with the process identity of the calling application.
Monitoring Recommendations
- Enroll devices in a mobile threat management solution capable of collecting kernel-level crash telemetry.
- Alert on installation of unsigned or side-loaded applications that request access to sensitive device APIs.
- Review Huawei device build numbers against the November 2025 bulletin to identify unpatched endpoints.
How to Mitigate CVE-2025-58314
Immediate Actions Required
- Apply the November 2025 Huawei security update to all affected EMUI and HarmonyOS devices.
- Inventory Huawei devices in the environment and identify builds matching the vulnerable versions listed above.
- Restrict installation of untrusted applications until patches are deployed across the fleet.
Patch Information
Huawei published fixes as part of the November 2025 security bulletin. Consult the Huawei Security Bulletin for the specific build numbers that remediate CVE-2025-58314 on each affected EMUI and HarmonyOS release.
Workarounds
- Enforce mobile application allow-listing to block installation of untrusted software on managed devices.
- Disable side-loading and require applications to come from vetted app stores.
- Isolate devices that cannot receive the November 2025 update from sensitive corporate resources until patched.
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
