CVE-2023-40121 SQL injection in Android

What is CVE-2023-40121?

CVE-2023-40121 is a medium-severity SQL injection vulnerability in Google Android, published on 27 Oct 2023. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

In appendEscapedSQLString of DatabaseUtils.java, there is a possible SQL injection due to unsafe deserialization. This could lead to local information disclosure with User execution privileges needed. User interaction is not needed for exploitation.

Weakness: CWE-502

Which versions are affected by CVE-2023-40121?

It affects 1 product.

Products include Google Android.

How do I fix CVE-2023-40121?

Apply the vendor's patch.

Use parameterised queries everywhere and never build SQL by joining strings. Upgrade affected software first; a web application firewall only buys time. More about SQL injection.

Is CVE-2023-40121 being exploited?

There is no known exploitation of CVE-2023-40121 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 A-224771621, ASB-A-224771621, GHSA-vvc5-h94x-p72m.