CVE-2022-32619 is a vulnerability identified in multiple MediaTek chipsets, including but not limited to MT6580, MT6731, MT6735, MT6737, MT6739, MT6753, MT6757 series, MT6761 through MT6791 series, MT6833, MT6853 series, MT6873 through MT6895 series, MT6983, MT8185, MT8321, MT8385, MT8666, MT8765 series, MT8781 through MT8797 series. These chipsets are widely used in various Android devices running versions 10.0 through 13.0. The vulnerability arises from an out-of-bounds write in the keyinstall component due to an incorrect bounds check, classified under CWE-787 (Out-of-bounds Write). This flaw allows a local attacker with system execution privileges to escalate their privileges further without requiring user interaction. The attack vector requires local access with high privileges (PR:H), but no user interaction (UI:N) is needed, making exploitation feasible once the attacker has system-level access. The vulnerability impacts confidentiality, integrity, and availability, as indicated by the CVSS vector (C:H/I:H/A:H) and a CVSS v3.1 score of 6.7 (medium severity). No known exploits in the wild have been reported to date. The issue was reserved in June 2022 and publicly disclosed in December 2022. While a patch identifier (ALPS07439659) is mentioned, no direct patch links are provided, indicating that remediation may depend on OEM or device manufacturer updates. The vulnerability's root cause is a programming error in bounds checking during key installation processes, which could corrupt memory and allow privilege escalation on affected devices.

For European organizations, the impact of CVE-2022-32619 primarily concerns devices utilizing MediaTek chipsets in their mobile or embedded environments. Many consumer smartphones, IoT devices, and possibly enterprise mobile devices in Europe use MediaTek processors due to their cost-effectiveness and performance balance. An attacker who gains local system execution privileges on such devices could exploit this vulnerability to escalate privileges, potentially gaining full control over the device. This could lead to unauthorized access to sensitive corporate data, interception of communications, installation of persistent malware, or disruption of device functionality. In sectors relying heavily on mobile devices for secure communications or operational technology (e.g., manufacturing, logistics, healthcare), this vulnerability could undermine device integrity and confidentiality. Although exploitation requires existing system-level access, the lack of need for user interaction increases risk in scenarios where attackers have already compromised lower privilege accounts or deployed malware with system privileges. The vulnerability could also be leveraged in targeted attacks against high-value individuals or organizations if attackers gain initial footholds. Given the widespread use of affected MediaTek chipsets in consumer and enterprise devices, the vulnerability poses a moderate risk to European organizations, especially those with bring-your-own-device (BYOD) policies or reliance on mobile endpoints.

1. Immediate deployment of vendor-supplied patches or firmware updates addressing ALPS07439659 is critical. Organizations should liaise with device manufacturers and MediaTek to obtain and apply updates promptly. 2. Implement strict device management policies to limit local system-level access, including enforcing least privilege principles and restricting administrative rights on mobile devices. 3. Employ mobile threat defense (MTD) solutions capable of detecting privilege escalation attempts and anomalous behavior on devices with MediaTek chipsets. 4. Conduct regular security audits and vulnerability assessments on mobile fleets to identify unpatched devices and ensure compliance with security policies. 5. For devices that cannot be patched immediately, consider isolating them from sensitive networks or data to reduce potential impact. 6. Educate users and administrators about the risks of privilege escalation and the importance of applying updates. 7. Monitor threat intelligence feeds for any emerging exploit code or attack campaigns targeting this vulnerability to enable rapid incident response. 8. Where feasible, implement endpoint detection and response (EDR) capabilities on mobile devices to detect exploitation attempts. These measures go beyond generic patching advice by emphasizing device management, monitoring, and risk reduction strategies tailored to the nature of this vulnerability and its exploitation requirements.