What’s Vulnerable › Vulnerabilities

CVE-2021-33403

• Severity: high (CVSS 7.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.2% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2021-08-03 · updated 2026-06-17
• Weakness: CWE-190

Description

An integer overflow in the transfer function of a smart contract implementation for Lancer Token, an Ethereum ERC20 token, allows the owner to cause unexpected financial losses between two large accounts during a transaction.

Affected products

• Blocklancertoken Project Blocklancertoken: all versions

References

• https://cn.etherscan.com/address/0x63e634330a20150dbb61b15648bc73855d6ccf07#code
• https://github.com/MRdoulestar/SC-RCVD/blob/main/Vulnerabilities/LNCToken.md
• https://cn.etherscan.com/address/0x63e634330a20150dbb61b15648bc73855d6ccf07#code
• https://github.com/MRdoulestar/SC-RCVD/blob/main/Vulnerabilities/LNCToken.md

Get alerted when CVE-2021-33403 or the next vulnerability affects your stack