CVE-2025-61732
📋 TL;DR
This vulnerability in Go's cgo tool allows attackers to smuggle malicious code into compiled binaries by exploiting differences in how Go and C/C++ comments are parsed. This affects any application using cgo to interface with C/C++ code, potentially allowing arbitrary code execution. Developers using cgo in Go applications are primarily affected.
💻 Affected Systems
- Go programming language with cgo
⚠️ Manual Verification Required
This CVE does not have specific version information in our database, so automatic vulnerability detection cannot determine if your system is affected.
Why? The CVE database entry doesn't specify which versions are vulnerable (no version ranges provided by the vendor/NVD).
🔒 Custom verification scripts are available for registered users. Sign up free to download automated test scripts.
- Review the CVE details at NVD
- Check vendor security advisories for your specific version
- Test if the vulnerability is exploitable in your environment
- Consider updating to the latest version as a precaution
⚠️ Risk & Real-World Impact
Worst Case
Remote code execution with the privileges of the compiled binary, potentially leading to complete system compromise.
Likely Case
Supply chain attacks where malicious code is injected into dependencies during build processes, leading to backdoored production binaries.
If Mitigated
Limited impact if proper code review and build process controls prevent unauthorized code injection.
🎯 Exploit Status
Exploitation requires the ability to inject malicious code into source files or build dependencies, making it more suitable for supply chain attacks than direct remote exploitation.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Go 1.24.0
Vendor Advisory: https://go.dev/issue/76697
Restart Required: No
Instructions:
1. Update Go to version 1.24.0 or later. 2. Recompile all applications using cgo with the updated Go compiler. 3. Redeploy updated binaries to production systems.
🔧 Temporary Workarounds
Disable cgo compilation
allTemporarily disable cgo usage during builds if C/C++ integration is not required
CGO_ENABLED=0 go build
Use pure Go alternatives
allReplace cgo dependencies with pure Go implementations where possible
🧯 If You Can't Patch
- Implement strict code review processes for all C/C++ code used with cgo
- Use isolated build environments with verified dependencies to prevent supply chain attacks
🔍 How to Verify
Check if Vulnerable:
Check if your Go application uses cgo by examining imports for C package usage or checking for .c/.cpp files in the projectCheck Version:
go versionVerify Fix Applied:
Verify Go version is 1.24.0 or later and recompile all cgo-dependent applications📡 Detection & Monitoring
Log Indicators:
- Unexpected build failures in cgo compilation
- Unusual import patterns in Go source files
Network Indicators:
- Unusual network connections from build systems during compilation
SIEM Query:
Process execution logs showing go build with cgo enabled from unexpected sources or with unusual arguments