CVE-2023-40104 Weak cryptography in Android

What is CVE-2023-40104?

CVE-2023-40104 is a high-severity vulnerability in Google Android, published on 15 Feb 2024. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

In ca-certificates, there is a possible way to read encrypted TLS data due to untrusted cryptographic certificates. This could lead to remote information disclosure with no additional execution privileges needed. User interaction is not needed for exploitation.

Weakness: CWE-295

Which versions are affected by CVE-2023-40104?

It affects 1 product.

Products include Google Android.

How do I fix CVE-2023-40104?

Apply the vendor's patch.

Is CVE-2023-40104 being exploited?

There is no known exploitation of CVE-2023-40104 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-284262845, ASB-A-284262845, GHSA-vvp7-qf5p-r677.