CVE-2018-14089

An issue was discovered in a smart contract implementation for Virgo_ZodiacToken, an Ethereum token. In this contract, 'bool sufficientAllowance = allowance <= _value' will cause an arbitrary transfer in the function transferFrom because '<=' is used instead of '>=' (which was intended). An attacker can transfer from any address to his address, and does not need to meet the 'allowance > value' condition.

• CWE-20

• https://github.com/hellowuzekai/blockchains/blob/master/transferFrom.mdExploit, Third Party Advisory
• https://github.com/hellowuzekai/blockchains/blob/master/transferFrom.mdExploit, Third Party Advisory

Published

Jul 16, 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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