CVE-2019-15474

CVE-2019-15474 describes a vulnerability in the Xiaomi Cepheus Android device (Mi 9) where a pre-installed Qualcomm app, com.qualcomm.qti.callenhancement, allows unauthorized microphone audio recording. This occurs through a confused deputy attack, enabling any co-located app to leverage the vulnerable app's open interface to record telephone calls to external storage. The vulnerability has a CVSS score of 5.5 (Medium), indicating a local attack vector with low complexity, requiring low privileges, and resulting in high confidentiality impact without affecting integrity or availability. The EPSS and FAUCET Risk Score are low, suggesting a limited likelihood of exploitation in the wild. Currently, there is no evidence of active exploitation, and no public exploit code is available on platforms like Metasploit or ExploitDB. The vulnerability has also received minimal community discussion or media coverage, suggesting it is not a widely recognized or actively targeted threat.