CVE-2025-2783 Overview
Incorrect handle provided in unspecified circumstances in Mojo in Google Chrome on Windows prior to version 134.0.6998.177 allowed a remote attacker to perform a sandbox escape via a malicious file. (Chromium security severity: High)
Critical Impact
This vulnerability permits a remote attacker to execute arbitrary code outside the intended permissions of a sandboxed environment, posing a significant threat of security breaches.
Affected Products
- Google Chrome
- Microsoft Windows
Discovery Timeline
- 2025-03-26 - CVE CVE-2025-2783 published to NVD
- 2025-10-24 - Last updated in NVD database
Technical Details for CVE-2025-2783
Vulnerability Analysis
This vulnerability results from improper handle management within the Mojo component in Chrome. A remote attacker can exploit this flaw by crafting a malicious file that, when processed, allows the attacker to escape the sandboxed environment. The sandbox escape potentially leads to execution of arbitrary code with elevated privileges.
Root Cause
The root cause is attributed to an incorrect handle being provided under unspecified circumstances within the Mojo IPC stack, which facilitates inter-process communications.
Attack Vector
Network
// Example exploitation code (sanitized)
function exploit() {
let maliciousFile = createMaliciousMojoHandle();
sendToChrome(maliciousFile);
}
Detection Methods for CVE-2025-2783
Indicators of Compromise
- Unexpected Chrome process crashes
- Sandbox escape attempts recorded in logs
- Anomalous network requests from Chrome
Detection Strategies
Utilize Endpoint Detection and Response (EDR) solutions like SentinelOne Singularity that monitor system processes and network activity for potential misuse of IPC mechanisms.
Monitoring Recommendations
- Enable detailed logging in Chrome to capture suspicious activity
- Regularly review network traffic originating from Chrome
How to Mitigate CVE-2025-2783
Immediate Actions Required
- Update Google Chrome to the latest version
- Monitor network traffic for anomalies
- Implement application whitelist policies
Patch Information
Google has released a patch in version 134.0.6998.177 to address this vulnerability. Users are advised to upgrade to the patched version immediately.
Workarounds
Restrict execution of untrusted files from network locations and consider enforcing strict Content Security Policies (CSP).
# Example Linux system configuration to prevent execution from /tmp
chmod 700 /tmp
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
