CVE-2020-12747 Memory corruption in n/a

What is CVE-2020-12747?

CVE-2020-12747 is a critical memory corruption vulnerability in Google Android, published on 11 May 2020. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

An issue was discovered on Samsung mobile devices with Q(10.0) (Exynos980 9630 and Exynos990 9830 chipsets) software. The Bootloader has a heap-based buffer overflow because of the mishandling of specific commands. The Samsung IDs are SVE-2020-16981, SVE-2020-16991 (May 2020).

Weakness: CWE-787

Which versions are affected by CVE-2020-12747?

It affects 1 product.

Products include Google Android.

How do I fix CVE-2020-12747?

No fix has been published for CVE-2020-12747 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-2020-12747 being exploited?

There is no known exploitation of CVE-2020-12747 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-3jcm-w957-2h9v.