CVE-2025-20705 Use after free in MT2718, MT2735, MT6739, MT6761, MT6765, MT6768, MT6781, MT6789, MT6835, MT6853, MT6855, MT6877, MT6878, MT6879, MT6880, MT6883, MT6885, MT6886, MT6889, MT6890, MT6893, MT6895, MT6897, MT6899, MT6980D, MT6983, MT6985, MT6989, MT6990, MT6991, MT8169, MT8186, MT8188, MT8676, MT8678, MT8696, MT8775, MT8792, MT8796

High 7.8 Published Updated

A use-after-free vulnerability in MediaTek SoC firmware allows local attackers with System privileges to escalate privileges.

Exploited in the wild
Not known
Login needed
Any signed-in user
Attackable
Local or same network only
Victim action needed
Not needed
Fix
None listed

What is CVE-2025-20705?

CVE-2025-20705 is a high-severity use after free vulnerability in Google Android, published on 1 Sep 2025. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

In monitor_hang, there is a possible memory corruption due to use after free. 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: ALPS09989078; Issue ID: MSV-3964.

Weakness: CWE-416

Which versions are affected by CVE-2025-20705?

It affects 3 products.

Products include Google Android, Linuxfoundation Yocto, Openwrt Openwrt.

How do I fix CVE-2025-20705?

No fix has been published for CVE-2025-20705 yet. Limit exposure of the affected software until one is available.

Upgrade to the fixed version. These bugs are found with fuzzing and sanitisers and avoided by memory-safe languages. More about Use after free.

Is CVE-2025-20705 being exploited?

There is no known exploitation of CVE-2025-20705 in the wild and no public exploit code.

All Google Android vulnerabilities

Sources

Also known as GHSA-8q38-g4mm-hvf4.

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