Full Report
Multiple vulnerabilities have been discovered in Google Chrome, the most severe of which could allow for arbitrary code execution. Successful exploitation of the most severe of these vulnerabilities could allow for arbitrary code execution in the context of the logged on user. Depending on the privileges associated with the user an attacker could then install programs; view, change, or delete data; or create new accounts with full user rights. Users whose accounts are configured to have fewer user rights on the system could be less impacted than those who operate with administrative user rights.
Analysis Summary
# Vulnerability: Multiple Vulnerabilities in Google Chrome Leading to Arbitrary Code Execution
## CVE Details
- **CVE ID:** CVE-2026-5272 through CVE-2026-5292 (21 IDs total)
- **CVSS Score:** Not explicitly provided, but rated as **High Risk** for government and business entities.
- **CWE:** Multiple, including CWE-416 (Use after free), CWE-122 (Heap-based buffer overflow), CWE-190 (Integer overflow), and CWE-125 (Out-of-bounds read).
## Affected Systems
- **Products:** Google Chrome Browser
- **Versions:**
- Chrome prior to 146.0.7680.177/178 for Windows and macOS
- Chrome prior to 146.0.7680.177 for Linux
- **Configurations:** Systems where users operate with high administrative privileges are at highest risk.
## Vulnerability Description
This advisory covers 21 distinct security flaws. The most critical vulnerabilities involve **Use After Free** (UAF) in memory components (CSS, Web MIDI, WebCodecs, Dawn, WebGL, PDF, WebView, Navigation, and Compositing). Other technical flaws include **Heap Buffer Overflows** in the GPU and ANGLE components, **Integer Overflows** in Codecs and ANGLE, and **Object Corruption** specifically within the V8 engine.
If successfully exploited, these flaws allow an attacker to bypass security boundaries to execute code remotely within the browser's context.
## Exploitation
- **Status:** **Exploited in the wild** (Specifically CVE-2026-5281).
- **Complexity:** Medium to High (Typical for browser-based RCE chaining).
- **Attack Vector:** Network (Remote / Drive-by Compromise via malicious websites).
## Impact
- **Confidentiality:** High (Ability to view data and files).
- **Integrity:** High (Ability to change/delete data or install unauthorized programs).
- **Availability:** High (Ability to delete data or create new accounts).
## Remediation
### Patches
Update Google Chrome to the following versions or higher:
- **Windows/macOS:** 146.0.7680.177/178
- **Linux:** 146.0.7680.177
### Workarounds
- **Principle of Least Privilege:** Run the browser as a non-privileged user to limit the impact of code execution.
- **Dedicated Accounts:** Restrict administrative privileges to dedicated accounts; use standard user accounts for daily web browsing.
## Detection
- **Indicators of Compromise:** Monitor for unexpected browser crashes or suspicious child processes spawned by Chrome (e.g., cmd.exe, powershell.exe).
- **Detection methods and tools:** Use automated vulnerability scanners to identify outdated Chrome versions across the enterprise (CIS Safeguard 7.4).
## References
- **Vendor Advisory:** hxxps://chromereleases[.]googleblog[.]com/2026/03/stable-channel-update-for-desktop_31[.]html
- **CVE Mitre (Example):** hxxps://cve[.]mitre[.]org/cgi-bin/cvename[.]cgi?name=CVE-2026-5281
- **MITRE ATT&CK Matrix:** Drive-By Compromise (T1189) / Initial Access (TA0001)