Litecoin Core — Cyber Threats, Attacks & Incidents

Related Threat Clusters

• Critical Litecoin Update Released After Zero-Day Exploit Incident

  The Litecoin team released Core version 0.21.5.5 on May 7, 2026, addressing a zero-day exploit that allowed a denial-of-service (DoS) attack affecting major mining pools. This vulnerability stemmed from a critical…

  2 articles · Updated May 8, 2026
• Litecoin Faces 13-Block Reorganization Due to Zero-Day Vulnerability Exploitation

  On April 25, 2026, Litecoin experienced a significant 13-block chain reorganization after attackers exploited a zero-day vulnerability in its MimbleWimble Extension Block (MWEB) protocol. The vulnerability allowed…

  27 articles · Updated April 25, 2026

Recent Intelligence Reports

• Critical Litecoin Update Released After Zero-Day Exploit Incident — U.Today · May 7, 2026
• Litecoin Addresses Zero-Day Vulnerability and Releases Security Update — Kucoin · April 26, 2026
• Litecoin says its 13-block reorg was not a 'zero-day, but GitHub commit history shows otherwise — Cryptonews · April 26, 2026
• Litecoin Attack: Researchers Challenge 'Zero-Day' Claim with GitHub Proof — Whalesbook · April 26, 2026

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