A certain HTC update for Android 2.3.4 build GRJ22, when the Sense interface is used on the HTC EVO 3D, EVO 4G, ThunderBolt, and unspecified other devices, provides the HtcLoggers.apk application, which allows user-assisted remote attackers to obtain a list of telephone numbers from a log, and other sensitive information, by leveraging the android.permission.INTERNET application permission and establishing TCP sessions to 127.0.0.1 on port 65511 and a second port.

Multiple HTC Android devices including Desire HD FRG83D and GRI40, Glacier FRG83, Droid Incredible FRF91, Thunderbolt 4G FRG83D, Sensation Z710e GRI40, Sensation 4G GRI40, Desire S GRI40, EVO 3D GRI40, and EVO 4G GRI40 allow remote attackers to obtain 802.1X Wi-Fi credentials and SSID via a crafted application that uses the android.permission.ACCESS_WIFI_STATE permission to call the toString method on the WifiConfiguration class.

The HTC IQRD service for Android on the HTC EVO 4G before 4.67.651.3, EVO Design 4G before 2.12.651.5, Shift 4G before 2.77.651.3, EVO 3D before 2.17.651.5, EVO View 4G before 2.23.651.1, Vivid before 3.26.502.56, and Hero does not restrict localhost access to TCP port 2479, which allows remote attackers to (1) send SMS messages, (2) obtain the Network Access Identifier (NAI) and its password, or trigger (3) popup messages or (4) tones via a crafted application that leverages the android.permission.INTERNET permission.

A vulnerability was found in HTC One/Sense 4.x. It has been rated as problematic. Affected by this issue is the certification validation of the mail client. An exploit has been disclosed to the public and may be used.

The 3G Mobile Hotspot feature on the HTC Droid Incredible has a default WPA2 PSK passphrase of 1234567890, which makes it easier for remote attackers to obtain access by leveraging a position within the WLAN coverage area.

This vulnerability allows adjacent attackers to inject arbitrary Controller Area Network messages on vulnerable installations of Volkswagen Customer-Link App 1.30 and HTC Customer-Link Bridge. Authentication is not required to exploit this vulnerability. The specific flaw exists within the Customer-Link App and Customer-Link Bridge. The issue results from the lack of a proper protection mechanism against unauthorized firmware updates. An attacker can leverage this vulnerability to inject CAN messages. Was ZDI-CAN-5264.

Privilege escalation in the "HTC Account Service" and "ViveportDesktopService" in HTC VIVEPORT before 1.0.0.36 allows local attackers to escalate privileges to SYSTEM via reconfiguration of either service.

Privilege escalation due to insecure directory permissions affecting ViveportDesktopService in HTC VIVEPORT before 1.0.0.36 allows local attackers to escalate privileges via DLL hijacking.