CVE-2020-17752

Name: CVE-2020-17752
Creator: NVD / NIST
Published: 2021-06-24T20:15:08.66+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.8/10EPSS 1.58%

Last modified Jun 17, 2026

CVE-2020-17752 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. Integer overflow vulnerability in payable function of a smart contract implementation for an Ethereum token, as demonstrated by the smart contract implemented at address 0xB49E984A83d7A638E7F2889fc8328952BA951AbE, an implementation for MillionCoin (MON).. EPSS estimates a 1.58% chance of exploitation in the next 30 days.

Description

Integer overflow vulnerability in payable function of a smart contract implementation for an Ethereum token, as demonstrated by the smart contract implemented at address 0xB49E984A83d7A638E7F2889fc8328952BA951AbE, an implementation for MillionCoin (MON).

Metrics

CVSS 3.1

9.8/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS Probability

1.58%

72.4th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-190

Affected Software

Vendor	Product	Versions
Mon Project	Mon	All versions

References

https://etherscan.io/address/0xB49E984A83d7A638E7F2889fc8328952BA951AbEVendor Advisory
https://github.com/hellowuzekai/blockchains/blob/master/balance.mdExploit, Third Party Advisory
https://etherscan.io/address/0xB49E984A83d7A638E7F2889fc8328952BA951AbEVendor Advisory
https://github.com/hellowuzekai/blockchains/blob/master/balance.mdExploit, Third Party Advisory

Timeline

Published: Jun 24, 2021
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2020-17752?

How severe is CVE-2020-17752?

CVE-2020-17752 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 1.58% probability of exploitation in the next 30 days.

How do I fix CVE-2020-17752?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2020-17752?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST