Full Report
Google has patched a critical type confusion vulnerability in Chrome, the fourth zero-day fix in 2025
Analysis Summary
As a vulnerability research specialist, here is the summary of the provided article:
# Vulnerability: Chrome V8 Type Confusion Leading to In-the-Wild Exploitation
## CVE Details
- CVE ID: CVE-2025-6554
- CVSS Score: Not explicitly provided in the text, but context implies **High** severity ("critical security flaw," "actively exploited").
- CWE: Type Confusion (Implied by "type confusion vulnerability")
## Affected Systems
- Products: Google Chrome
- Versions: All versions before 138.0.7204.96 (General)
- Windows: Before 138.0.7204.96/.97
- macOS: Before 138.0.7204.92/.93
- Linux: Before 138.0.7204.96
- Configurations: Affects users navigating to specially crafted web pages.
## Vulnerability Description
The vulnerability is a **type confusion flaw within Chrome’s V8 JavaScript and WebAssembly engine**. This error occurs when the program misinterprets the data type of an object, allowing attackers to manipulate program execution flow, leading to out-of-bounds memory access.
## Exploitation
- Status: **Exploited in the wild**
- Complexity: Implied **Low** or **Medium** as it only requires luring users to open a specially crafted web page.
- Attack Vector: **Network** (via specially crafted web pages)
## Impact
Based on the technical details (Arbitrary Read/Write, Code Execution):
- Confidentiality: High (Potential for data theft via arbitrary read)
- Integrity: High (Potential for arbitrary code execution alters system state)
- Availability: High (Potential for crashing programs)
## Remediation
### Patches
Google deployed configuration changes to the Stable channel to mitigate the risk:
- Windows: Patched in version **138.0.7204.96/.97**
- macOS: Patched in version **138.0.7204.92/.93**
- Linux: Patched in version **138.0.7204.96**
### Workarounds
- No specific workarounds provided, immediate patching is implied as the necessary action following in-the-wild exploitation.
## Detection
- Detection methods are not detailed, but the root cause is a memory corruption bug in V8.
- Indicators of compromise would likely involve observing unusual memory access patterns or unexpected process termination originating from the Chrome renderer process.
## References
- Vendor advisories: Google Security Blog/Chrome Releases (Implied)
- Relevant links: infosecurity-magazine dot com/news/google-patch-chrome-zero-day/