CVE-2026-20412

MediaTek · cameraisp

The MediaTek cameraisp component contains an out-of-bounds write vulnerability caused by a missing bounds check, posing a risk of memory corruption.

Executive summary

A critical flaw in the MediaTek cameraisp driver could allow a local attacker to execute an out-of-bounds write, leading to system instability or unauthorized privilege escalation.

Vulnerability

This vulnerability occurs in the "cameraisp" (Image Signal Processor) component due to a missing bounds check. An attacker with the ability to interface with the camera driver can trigger an out-of-bounds write, allowing for the corruption of memory in a high-privilege kernel or driver environment.

Business impact

Successful exploitation of this High-severity (CVSS 7.8) vulnerability could allow an attacker to gain unauthorized access to the device's camera feed or escalate their privileges to take full control of the operating system. This poses a direct threat to user privacy and corporate data security, as it bypasses standard operating system permissions and security boundaries.

Remediation

Immediate Action: Apply the latest system updates and security patches provided by the device vendor or MediaTek immediately.

Proactive Monitoring: Monitor for unexpected system crashes or reboots, which can be indicators of failed memory corruption exploit attempts.

Compensating Controls: Restrict camera permissions for non-essential applications and use enterprise mobility management (EMM) to enforce the latest security policy baselines.

Exploitation status

Public Exploit Available: false

Analyst recommendation

The severity of an out-of-bounds write in a hardware driver cannot be overstated. We recommend that security teams expedite the testing and deployment of the latest vendor firmware. Immediate patching is necessary to prevent local attackers or malicious apps from compromising the device's security architecture.