Detect CVE-2025-14174: Google Chromium Out of Bounds Memory Access Exploitation in CrowdStrike LogScale
Detects exploitation of CVE-2025-14174, an out-of-bounds memory access vulnerability in Google Chromium. This vulnerability is actively exploited in the wild (CISA KEV) and can allow attackers to execute arbitrary code or escape the browser sandbox via a crafted web page. Detection focuses on abnormal Chromium process behavior including child process spawning, memory anomalies, and post-exploitation indicators.
MITRE ATT&CK
LogScale Detection Query
#event_simpleName=ProcessRollup2
| ParentBaseFileName in ("chrome.exe", "msedge.exe", "brave.exe", "chromium.exe")
| FileName in ("cmd.exe", "powershell.exe", "wscript.exe", "cscript.exe", "mshta.exe", "rundll32.exe", "regsvr32.exe", "certutil.exe", "bitsadmin.exe")
| eval RiskScore = case(
CommandLine = /(?i)(-enc|-EncodedCommand|IEX|Invoke-Expression)/ AND FileName = "powershell.exe", "90-Critical",
FileName = "powershell.exe", "75-High",
FileName = "cmd.exe" AND CommandLine = /\/c\s/i, "65-High",
true(), "50-Medium"
)
| where RiskScore != ""
| table _time, ComputerName, UserName, ParentBaseFileName, ParentProcessId, FileName, CommandLine, RiskScore
| sort - RiskScore
| limit 200CrowdStrike Falcon LogScale query using event simpleName to identify Chromium browser processes spawning shell interpreters and system utilities consistent with CVE-2025-14174 exploitation, with risk scoring by command-line characteristics.
Data Sources
Required Tables
False Positives & Tuning
- Automated browser testing in development environments monitored by Falcon
- Browser-based RPA (Robotic Process Automation) tools spawning shell commands
- Legitimate Chrome extensions using native messaging to launch helper processes
- Managed browser deployments where IT tooling invokes scripts via browser context
Other platforms for CVE-2025-14174
Testing Methodology
Validate this detection against 4 adversary techniques from Atomic Red Team. Each test below lists the behaviour to exercise and the telemetry you should expect to see. Executable commands and cleanup steps are available with Pro.
- Test 1Chromium Renderer Spawning CMD Shell (Simulated)
Expected signal: Process creation event showing chrome.exe as parent of cmd.exe; file write event to C:\Temp\chromium_oob_test.txt
- Test 2Chrome Spawning PowerShell with Encoded Command
Expected signal: Process creation event with chrome.exe parent, powershell.exe child with -EncodedCommand argument visible in command line
- Test 3Linux Chromium Spawning Shell Process
Expected signal: Process creation audit log (auditd or Sysdig) showing chromium-browser as parent of bash process; file write to /tmp/
- Test 4Browser Process Network Connection to C2 Port (Simulated)
Expected signal: Network connection event from chrome.exe to 127.0.0.1:4444; correlated with child process spawn event
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Get the full detection package for CVE-2025-14174 including response playbook, investigation guide, and atomic red team tests.