CVE-2026-0634 Overview
CVE-2026-0634 is a command injection vulnerability affecting the AssistFeedbackService component in TECNO Pova7 Pro 5G devices running Android. This vulnerability allows local applications to execute arbitrary code with system-level privileges by exploiting improper argument handling in the service.
Critical Impact
Local applications can escalate privileges to system level, potentially gaining complete control over the affected device, accessing sensitive data, and persisting malicious payloads.
Affected Products
- TECNO Pova7 Pro 5G on Android
Discovery Timeline
- 2026-04-02 - CVE-2026-0634 published to NVD
- 2026-04-02 - Last updated in NVD database
Technical Details for CVE-2026-0634
Vulnerability Analysis
This vulnerability is classified under CWE-88 (Improper Neutralization of Argument Delimiters in a Command), commonly known as Argument Injection. The AssistFeedbackService component in TECNO Pova7 Pro 5G devices fails to properly sanitize input parameters before passing them to system-level command execution functions.
The local attack vector means an attacker must have a malicious application installed on the target device. Once installed, the app can interact with the vulnerable AssistFeedbackService to inject arbitrary commands that execute with elevated system privileges. This type of vulnerability is particularly dangerous on mobile devices where system-level access can bypass Android's security sandbox, access protected data stores, and manipulate core device functionality.
Root Cause
The root cause of this vulnerability lies in insufficient input validation within the AssistFeedbackService. The service accepts user-controlled input and constructs system commands without properly escaping or filtering special characters and argument delimiters. This allows attackers to break out of the intended command context and inject additional commands or arguments.
The vulnerability specifically relates to CWE-88 (Argument Injection), where the application fails to neutralize metacharacters that could be interpreted as command delimiters, allowing an attacker to modify the intended command structure.
Attack Vector
The attack vector for CVE-2026-0634 is local, requiring an attacker to first install a malicious application on the victim's device. This could be achieved through:
- Malicious App Distribution: Publishing a trojanized application on third-party app stores or through sideloading
- App Hijacking: Compromising a legitimate application's update mechanism
- Social Engineering: Convincing users to install a seemingly benign application
Once the malicious application is installed, it can communicate with the AssistFeedbackService through Android's Inter-Process Communication (IPC) mechanisms. By crafting specially formatted input containing command injection payloads, the attacker can execute arbitrary commands with system privileges.
The vulnerability allows full confidentiality, integrity, and availability impact on the device, enabling attackers to read sensitive data, modify system configurations, or disrupt device functionality.
Detection Methods for CVE-2026-0634
Indicators of Compromise
- Unusual process spawning from AssistFeedbackService or related system services
- Unexpected network connections initiated by system-level processes
- Anomalous file system modifications in protected directories
- Applications requesting excessive permissions or exhibiting suspicious IPC behavior
Detection Strategies
- Monitor for applications attempting to bind to or communicate with AssistFeedbackService
- Implement behavioral analysis to detect command injection patterns in IPC communications
- Deploy mobile threat detection solutions that can identify privilege escalation attempts
- Audit installed applications for suspicious permission combinations
Monitoring Recommendations
- Enable Android audit logging to capture service interactions and command executions
- Implement endpoint detection and response (EDR) solutions on managed mobile devices
- Monitor for unauthorized applications being installed from unknown sources
- Review device logs for unexpected system-level process activity
How to Mitigate CVE-2026-0634
Immediate Actions Required
- Check for and apply security updates from TECNO via TECNO Security Updates
- Restrict installation of applications from unknown sources
- Remove any suspicious or unnecessary applications from affected devices
- Implement mobile device management (MDM) policies to enforce application whitelisting
Patch Information
TECNO has released security updates to address this vulnerability. Users and enterprise administrators should consult the TECNO Security Updates portal for the latest firmware and security patch information for the Pova7 Pro 5G device.
Workarounds
- Disable or restrict access to the AssistFeedbackService if possible through device management tools
- Implement strict application installation policies allowing only vetted applications
- Use mobile threat defense solutions to detect and block exploitation attempts
- Consider network isolation for unpatched devices to limit potential lateral movement
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
