CVE-2026-58552 Overview
CVE-2026-58552 is an out-of-bounds read vulnerability in the image codec module affecting Huawei consumer products. The flaw is categorized under [CWE-120] (Buffer Copy without Checking Size of Input) and impacts service confidentiality when successfully exploited. The vulnerability requires local access with low attack complexity and no user interaction. Huawei published advisories covering general consumer devices, laptops, Vision products, and wearables. The image codec module processes image data, and improper bounds checking allows an attacker to read memory outside intended buffers.
Critical Impact
Successful exploitation may disclose sensitive information from process memory, affecting the confidentiality of the affected service on Huawei consumer devices.
Affected Products
- Huawei consumer devices covered by the July 2026 general support bulletin
- Huawei laptops covered by the July 2026 laptop support bulletin
- Huawei Vision and Wearable devices covered by the July 2026 support bulletins
Discovery Timeline
- 2026-07-15 - CVE CVE-2026-58552 published to NVD
- 2026-07-15 - Last updated in NVD database
Technical Details for CVE-2026-58552
Vulnerability Analysis
The vulnerability resides in the image codec module responsible for decoding image formats on Huawei consumer devices. The codec fails to properly validate size boundaries when reading input data, allowing memory access beyond allocated buffer regions. An attacker with local access can craft a malicious image file that triggers the out-of-bounds read during decoding. The disclosed memory contents may contain sensitive process data, including pointers, credentials, or fragments of other user data resident in memory.
Exploitation requires local access to the device but no elevated privileges and no user interaction beyond triggering image processing. The impact is limited to confidentiality, with no direct integrity compromise, though disclosed memory may facilitate further attacks such as ASLR bypass.
Root Cause
The root cause is a missing or insufficient bounds check within the image parsing logic of the codec module. When the codec reads structured image data, it trusts size or offset fields from the input without validating them against the actual buffer length. This classifies the flaw under [CWE-120], where buffer copy operations proceed without verifying input size.
Attack Vector
An attacker delivers a malformed image file to a target Huawei device through any local channel such as file transfer, messaging app, or preloaded storage. When the image codec module processes the file, the malformed structure triggers a read past buffer boundaries. The attacker then observes disclosed data through side channels, application output, or subsequent memory reuse. See the Huawei Support Bulletin - General for technical details on the affected components.
Detection Methods for CVE-2026-58552
Indicators of Compromise
- Unexpected crashes or abnormal termination of image rendering processes on Huawei devices
- Malformed image files with irregular header fields, chunk sizes, or truncated metadata delivered through messaging or file-sharing channels
- Anomalous memory access patterns logged by device telemetry when parsing untrusted images
Detection Strategies
- Inspect image files at network and email gateways for structural anomalies inconsistent with standard codec specifications
- Monitor mobile device management (MDM) telemetry for repeated codec crashes across the Huawei device fleet
- Correlate image processing errors with subsequent suspicious application behavior indicating information disclosure attempts
Monitoring Recommendations
- Enable device diagnostic logging where supported and forward crash reports to a centralized analysis platform
- Track installation of the July 2026 Huawei security patches across managed devices to identify remediation gaps
- Review file transfer and messaging logs for delivery of unsolicited image attachments to high-value users
How to Mitigate CVE-2026-58552
Immediate Actions Required
- Apply the July 2026 Huawei security updates referenced in the vendor bulletins for consumer devices, laptops, Vision, and wearable product lines
- Inventory all Huawei consumer devices in the environment and prioritize patching devices handling sensitive data
- Advise users to avoid opening image files from untrusted sources until patches are deployed
Patch Information
Huawei released fixes as part of its July 2026 monthly security bulletins. Refer to the Huawei Support Bulletin - General, Huawei Laptop Support Bulletin, Huawei Vision Support Bulletin, and Huawei Wearables Support Bulletin for the exact affected versions and fixed builds for each product line.
Workarounds
- Restrict processing of image files from untrusted sources on affected devices until updates are applied
- Disable automatic image previews in messaging and email applications on unpatched Huawei devices
- Segment high-risk users onto patched or alternative devices where image handling of external content is required
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
