CVE-2016-3840 Code injection in n/a

What is CVE-2016-3840?

CVE-2016-3840 is a critical code injection vulnerability in Google Android, published on 5 Aug 2016. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

Conscrypt in Android 4.x before 4.4.4, 5.0.x before 5.0.2, 5.1.x before 5.1.1, and 6.x before 2016-08-05 does not properly identify session reuse, which allows remote attackers to execute arbitrary code via unspecified vectors, aka internal bug 28751153.

Weakness: CWE-264

Which versions are affected by CVE-2016-3840?

It affects 1 product.

Products include Google Android.

How do I fix CVE-2016-3840?

No fix has been published for CVE-2016-3840 yet. Limit exposure of the affected software until one is available.

Upgrade, and never evaluate templates, expressions or code built from user input. More about Code injection.

Is CVE-2016-3840 being exploited?

There is no known exploitation of CVE-2016-3840 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-rjfw-rxfj-wcx9, UBUNTU-CVE-2016-3840.