CVE-2025-20774 Memory corruption in MT2718, MT6739, MT6761, MT6765, MT6768, MT6781, MT6789, MT6833, MT6835, MT6853, MT6855, MT6877, MT6878, MT6879, MT6883, MT6885, MT6886, MT6889, MT6893, MT6895, MT6897, MT6899, MT6983, MT6985, MT6989, MT6991, MT8196, MT8676, MT8678, MT8792, MT8793

Medium 6.7 Published 2 Dec 2025 Updated 26 Feb 2026

A missing bounds check in MediaTek display firmware allows local attackers with System privileges to escalate privileges via out-of-bounds write.

Exploited in the wild: Not known
Login needed: An administrator
Attackable: Local or same network only
Victim action needed: Not needed
Fix: None listed

What is CVE-2025-20774?

CVE-2025-20774 is a medium-severity memory corruption vulnerability in Google Android, published on 2 Dec 2025. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

In display, there is a possible out of bounds write due to a missing bounds check. This could lead to local escalation of privilege if a malicious actor has already obtained the System privilege. User interaction is not needed for exploitation. Patch ID: ALPS10196993; Issue ID: MSV-4796.

Weakness: CWE-787, CWE-122

Which versions are affected by CVE-2025-20774?

It affects 1 product.

Products include Google Android.

How do I fix CVE-2025-20774?

No fix has been published for CVE-2025-20774 yet. Limit exposure of the affected software until one is available.

Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.

Is CVE-2025-20774 being exploited?

There is no known exploitation of CVE-2025-20774 in the wild and no public exploit code.

All Google Android vulnerabilities

Sources

Also known as GHSA-hj74-cqv4-rh6c.