Litecoin Network Hit by Zero-Day Attack in Coordinated Double-Spend Operation

• A zero-day MWEB bug lets attackers double-spend LTC across multiple DEX protocols now.
• NEAR Intents confirmed $600,000 exposure and said users will be fully covered for loss.
• The 13-block reorg took over three hours and reversed all invalid transactions on the chain.

Litecoin suffered an attack this weekend. A zero-day vulnerability was exploited in a coordinated operation that knocked major mining pools offline, triggered a 13-block reorganization of the chain, and enabled double-spend attacks across multiple cross-chain swapping protocols.

The attack targeted a bug in Litecoin’s MWEB privacy transaction layer. Non-upgraded mining nodes accepted an invalid MWEB transaction, allowing attackers to peg coins to third-party decentralized exchanges. The 13-block reorg, which took more than three hours to generate, ultimately reversed those invalid transactions. They wi…

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