CVE-2023-21190 Security feature bypass in Android

What is CVE-2023-21190?

CVE-2023-21190 is a medium-severity vulnerability in Google Android, published on 28 Jun 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 btm_acl_encrypt_change of btm_acl.cc, there is a possible way for a remote device to turn off encryption without resulting in a terminated connection due to an unusual root cause. This could lead to local information disclosure with no additional execution privileges needed. User interaction is needed for exploitation.Product: AndroidVersions: Android-13Android ID: A-251436534

Which versions are affected by CVE-2023-21190?

It affects 1 product.

Products include Google Android.

How do I fix CVE-2023-21190?

Apply the vendor's patch.

Is CVE-2023-21190 being exploited?

There is no known exploitation of CVE-2023-21190 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-251436534, GHSA-pr2x-5q4j-v542, PUB-A-251436534.