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Litecoin Zero-Day Vulnerability Exploited in DoS Attack, Disrupts Major Mining Pools

📅 26 April 2026 at 04:18 UTC📰 Cyber Security NewsView original source ↗
Litecoin Zero-Day Vulnerability Exploited in DoS Attack, Disrupts Major Mining Pools

A critical zero-day vulnerability in the Litecoin network was actively exploited to launch a denial-of-service (DoS) attack, temporarily disrupting operations across major mining pools before developers issued a full patch. Security researchers confirmed the flaw allowed threat actors to inject an invalid MWEB (MimbleWimble Extension Block) transaction into unpatched nodes, triggering a cascade of network […] The post Litecoin Zero-Day Vulnerability Exploited in DoS Attack, Disrupts Major Mining Pools appeared first on Cyber Security News.

🤖 AI BriefingAuto-generated threat analysis
🔍Threat Overview

A zero-day vulnerability in the Litecoin network was exploited to launch a DoS attack, disrupting major mining pools, and a patch was issued shortly after.

⚙️Technical Details
Affected Systems
Litecoin nodes
Attack Vectors
MWEB (MimbleWimble Extension Block) transaction injection
💥Impact Assessment
Severity: critical
🛡️Recommended Actions
1Implement patches for Litecoin nodes as soon as possible
2Monitor network activity for suspicious MWEB transactions
3Consider using alternative cryptocurrencies or mining pools
📦Affected Products
Litecoin nodes

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