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Wallbleed Vulnerability Exposes China's Great Firewall to Attacks

2/28/2025

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Summary

Story summary

A critical vulnerability named Wallbleed has been uncovered in China's Great Firewall, echoing the infamous Heartbleed bug. This flaw enables DNS spoofing and exposes sensitive data by leaking system memory. Researchers took advantage of this weakness until it was patched in March 2024. In a related incident, a cyber attack swiftly escalated to full control in just 48 minutes.

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Story summary

A critical vulnerability named Wallbleed has been uncovered in China's Great Firewall, echoing the infamous Heartbleed bug. This flaw enables DNS spoofing and exposes sensitive data by leaking system memory. Researchers took advantage of this weakness until it was patched in March 2024. In a related incident, a cyber attack swiftly escalated to full control in just 48 minutes.