CVE-2026-24915 is a medium-severity vulnerability classified as CWE-125 (Out-of-bounds Read) affecting Huawei's HarmonyOS media subsystem in versions 5.1.0 and 6.0.0. The vulnerability stems from improper bounds checking during memory read operations within the media processing components, allowing an attacker to read memory locations outside the intended buffer boundaries. This out-of-bounds read can lead to unauthorized disclosure of sensitive information stored in adjacent memory areas, thereby compromising confidentiality. The CVSS 3.1 vector (AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N) indicates that exploitation requires local access (local attack vector) but no privileges or user interaction, making it moderately accessible to attackers with local device access. The vulnerability does not impact integrity or availability directly but poses a significant confidentiality risk. No known exploits have been reported in the wild, and Huawei has not yet published patches, increasing the urgency for monitoring and mitigation. The media subsystem is a critical component responsible for handling multimedia data, which often includes sensitive user information, making this vulnerability particularly concerning for privacy and data protection. Organizations using Huawei devices with affected HarmonyOS versions should be aware of the potential for data leakage through this flaw.

For European organizations, the primary impact of CVE-2026-24915 is the potential unauthorized disclosure of sensitive information due to the out-of-bounds read vulnerability in the media subsystem of HarmonyOS devices. This can compromise confidentiality of user data, intellectual property, or sensitive communications processed by affected devices. Since exploitation requires local access but no privileges or user interaction, insider threats or attackers with physical or local network access could leverage this vulnerability. The impact on availability and integrity is minimal, but confidentiality breaches can lead to regulatory non-compliance under GDPR, reputational damage, and potential financial losses. Organizations relying on Huawei devices for critical communications or media processing should consider this vulnerability a moderate risk, especially in environments with less stringent physical or network access controls. The absence of known exploits reduces immediate risk but does not eliminate the threat, emphasizing the need for vigilance and proactive mitigation.

1. Monitor Huawei's official security advisories for patches addressing CVE-2026-24915 and apply updates promptly once available. 2. Restrict local access to devices running affected HarmonyOS versions by enforcing strict physical security controls and limiting local network access. 3. Implement device usage policies that minimize exposure of sensitive data on vulnerable devices, especially in high-risk environments. 4. Employ endpoint detection and response (EDR) solutions capable of detecting anomalous local access or memory read behaviors indicative of exploitation attempts. 5. Conduct regular security audits and vulnerability assessments focusing on Huawei devices within the organization to identify and mitigate potential attack vectors. 6. Educate staff about the risks of local device access and enforce strong authentication and access controls to reduce insider threat risks. 7. Consider network segmentation to isolate Huawei devices from critical systems to limit potential lateral movement in case of compromise.