CVE-2020-27055 Information disclosure in Android

What is CVE-2020-27055?

CVE-2020-27055 is a high-severity vulnerability in Google Android, published on 15 Dec 2020. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

In isSubmittable and showWarningMessagesIfAppropriate of WifiConfigController.java and WifiConfigController2.java, there is a possible insecure WiFi configuration due to improper input validation. This could lead to remote information disclosure with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android-11Android ID: A-161378819

Weakness: CWE-311

Which versions are affected by CVE-2020-27055?

It affects 1 product.

Products include Google Android.

How do I fix CVE-2020-27055?

No fix has been published for CVE-2020-27055 yet. Limit exposure of the affected software until one is available.

Is CVE-2020-27055 being exploited?

There is no known exploitation of CVE-2020-27055 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-956h-2q87-xrpg.