Google Patches Critical Android Vulnerability Exploited by Attackers

Google has recently addressed a significant security vulnerability in Android, identified as CVE-2025-27363, which has been actively exploited by attackers. This flaw, rated with a high severity score of 8.1, allows for local code execution without requiring additional privileges, posing a serious risk to users.

Key Takeaways

• Vulnerability Identified: CVE-2025-27363 is a high-severity flaw in the Android System component.

• Exploitation Risk: The flaw has been exploited in the wild, with indications of targeted attacks.

• Root Cause: The vulnerability is linked to the FreeType open-source font rendering library.

• User Action Required: Users are encouraged to update their devices to the latest Android version to mitigate risks.

Overview of CVE-2025-27363

CVE-2025-27363 is a critical vulnerability that affects the System component of Android devices. It allows attackers to execute arbitrary code locally without requiring user interaction or additional execution privileges. This flaw is particularly concerning as it can be exploited through malicious TrueType GX and variable font files, which are commonly used in various applications.

The vulnerability was first disclosed by Facebook in March 2025, highlighting its potential for exploitation. Google has acknowledged that there are signs of limited, targeted exploitation of this flaw, although specific details about the attacks remain unclear.

Technical Details

• CVSS Score: 8.1 (High Severity)

• Affected Component: Android System

• Root Cause: Out-of-bounds write flaw in the FreeType library

• FreeType Versions Fixed: 2.13.0 and above

This vulnerability is categorized as an out-of-bounds write flaw, which means that it can lead to code execution when the system improperly handles memory during the parsing of font files. Such vulnerabilities can be particularly dangerous as they allow attackers to gain control over affected devices without any user intervention.

Google’s Response

In response to this critical vulnerability, Google has released its monthly security updates for Android, which include fixes for a total of 46 security flaws. Among these, CVE-2025-27363 is highlighted as the most severe issue that requires immediate attention from users.

The updates also address several other vulnerabilities, including:

• Eight flaws in the Android System

• Fifteen flaws in the Framework module

These additional vulnerabilities could potentially lead to privilege escalation, information disclosure, and denial-of-service attacks, further emphasizing the importance of keeping devices updated.

Recommendations for Users

To protect against potential exploitation of CVE-2025-27363 and other vulnerabilities, users are strongly advised to:

1. Update to the Latest Android Version: Ensure that your device is running the most recent version of Android to benefit from the latest security patches.

2. Monitor Security Bulletins: Stay informed about new vulnerabilities and updates from Google and other security sources.

3. Be Cautious with Unknown Files: Avoid downloading or opening files from untrusted sources, especially font files that could exploit this vulnerability.

By taking these precautions, users can significantly reduce their risk of falling victim to attacks exploiting this and other vulnerabilities.

The discovery and patching of CVE-2025-27363 underscore the ongoing challenges in mobile security and the importance of timely updates to safeguard user data and device integrity. As cyber threats grow more sophisticated, staying informed is more important than ever. BetterWorld Technology delivers advanced cybersecurity solutions designed to adapt with the threat landscape—ensuring your business stays protected while continuing to innovate. Take the first step toward stronger security—contact us today for a consultation!

Sources

• Google Fixes Android Flaw (CVE-2025-27363) Exploited by Attackers, The Hacker News.