CVE-2018-9471 Deserialization in Android

What is CVE-2018-9471?

CVE-2018-9471 is a critical unsafe deserialization vulnerability in Google Android, published on 20 Nov 2024. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

In the deserialization constructor of NanoAppFilter.java, there is a possible loss of data due to type confusion. This could lead to local escalation of privilege in the system server with no additional execution privileges needed. User interaction is not needed for exploitation.

Weakness: CWE-843, CWE-787

Which versions are affected by CVE-2018-9471?

It affects 1 product.

Products include Google Android.

How do I fix CVE-2018-9471?

No fix has been published for CVE-2018-9471 yet. Limit exposure of the affected software until one is available.

Upgrade, and only deserialise data from trusted sources or with an allow-list of types. More about Unsafe deserialization.

Is CVE-2018-9471 being exploited?

There is no known exploitation of CVE-2018-9471 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-45c5-w4j9-w656.