CVE-2023-20847 Denial of service in MT6895, MT6897, MT6983, MT8188, MT8195, MT8395, MT8781

What is CVE-2023-20847?

CVE-2023-20847 is a medium-severity denial of service vulnerability in Google Android, published on 4 Sep 2023. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.

Official description

In imgsys_cmdq, there is a possible out of bounds read due to a missing valid range checking. This could lead to local denial of service with System execution privileges needed. User interaction is needed for exploitation. Patch ID: ALPS07354025; Issue ID: ALPS07340108.

Weakness: CWE-125

Which versions are affected by CVE-2023-20847?

It affects 4 products.

Products include Google Android, Linux kernel, Linuxfoundation Yocto, Mediatek Iot Yocto.

How do I fix CVE-2023-20847?

No fix has been published for CVE-2023-20847 yet. Limit exposure of the affected software until one is available.

Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.

Is CVE-2023-20847 being exploited?

There is no known exploitation of CVE-2023-20847 in the wild and no public exploit code.

Other vulnerabilities in Google Android

• CVE-2026-58704 Google Pixel Improper Authorization Exploited High 8.8
• CVE-2025-48543 Android Runtime Use-After-Free Exploited High 8.8
• CVE-2023-35674 Android Framework Privilege Escalation Exploited High 8.8
• CVE-2025-48595 Android Framework Integer Overflow Exploited High 8.4
• CVE-2024-32896 Android Pixel Privilege Escalation Exploited High 8.1

All Google Android vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as GHSA-3x76-36rv-8v95.