Understanding CVE-2025-20652
CVE-2025-20652 is a critical security vulnerability found in a wide range of MediaTek devices running on Android versions 13.0, 14.0, and 15.0. Identified as a possible out of bounds read issue, the vulnerability stems from a missing bounds check in the V5 DA. This particular security flaw could facilitate local information disclosure if an attacker is able to gain physical access to the vulnerable device. Notably, no additional execution privileges are required for an attacker to exploit this vulnerability, although user interaction is necessary.
The vulnerability has been classified under the Common Weakness Enumeration as CWE-125, indicative of an Out-of-bounds Read. Devices across a variety of MediaTek products are affected, including models MT6580, MT6739, MT6761, MT6765, MT6768, MT6771, and many others. MediaTek has since issued a patch to address this security risk, with Patch ID: ALPS09291215 and Issue ID: MSV-2052 detailed in the March 2025 security bulletin.
Mitigation Strategies for CVE-2025-20652
Users and organizations running affected MediaTek devices should prioritize implementing the recommended mitigation strategies to combat CVE-2025-20652 effectively.
1. Install Security Updates:
- Ensure that all affected devices are updated with the latest patch released by MediaTek. This involves installing Patch ID: ALPS09291215, which specifically addresses the out of bounds read vulnerability.
- Regularly check for updates from MediaTek or related vendors and set devices for automatic updates to ensure prompt application of critical patches.
2. Physical Access Controls:
- Since the exploitation of CVE-2025-20652 requires physical access, it is paramount to enforce strict physical security measures. Limiting unauthorized access to devices can significantly mitigate the potential for exploitation.
3. User Awareness and Training:
- Educating users about the nature of local information disclosure vulnerabilities, such as CVE-2025-20652, helps in preventing inadvertent actions that could facilitate exploitation.
- Implement training sessions that highlight the importance of device security, particularly when new patches and updates are released.
4. Device Interaction Protocols:
- Instituting protocols for how users interact with their devices can reduce the likelihood of inadvertent exploitation. Encourage cautious behavior when encountering unknown prompts or interfaces that require physical interaction.
By taking these measures, it is possible to mitigate the risks associated with CVE-2025-20652, thereby safeguarding information integrity across affected MediaTek devices.