CVE-2018-10299

An integer overflow in the batchTransfer function of a smart contract implementation for Beauty Ecosystem Coin (BEC), the Ethereum ERC20 token used in the Beauty Chain economic system, allows attackers to accomplish an unauthorized increase of digital assets by providing two _receivers arguments in conjunction with a large _value argument, as exploited in the wild in April 2018, aka the "batchOverflow" issue.

• CWE-190

• https://dasp.co/#item-3Exploit, Third Party Advisory
• https://medium.com/secbit-media/a-disastrous-vulnerability-found-in-smart-contracts-of-beautychain-bec-dbf24ddbc30eExploit, Third Party Advisory
• https://peckshield.com/2018/04/22/batchOverflow/Exploit, Third Party Advisory
• https://support.okex.com/hc/en-us/articles/360002944212-BeautyChain-BEC-Withdrawal-and-Trading-SuspendedThird Party Advisory
• https://twitter.com/OKEx_/status/987967343983714304Third Party Advisory
• https://www.reddit.com/r/ethereum/comments/8esyg9/okex_erc20_bug/Issue Tracking, Third Party Advisory
• https://dasp.co/#item-3Exploit, Third Party Advisory
• https://medium.com/secbit-media/a-disastrous-vulnerability-found-in-smart-contracts-of-beautychain-bec-dbf24ddbc30eExploit, Third Party Advisory
• https://peckshield.com/2018/04/22/batchOverflow/Exploit, Third Party Advisory
• https://support.okex.com/hc/en-us/articles/360002944212-BeautyChain-BEC-Withdrawal-and-Trading-SuspendedThird Party Advisory
• https://twitter.com/OKEx_/status/987967343983714304Third Party Advisory
• https://www.reddit.com/r/ethereum/comments/8esyg9/okex_erc20_bug/Issue Tracking, Third Party Advisory

Published

Apr 23, 2018

Last Modified

Jun 17, 2026

Status

Modified

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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