What is CVE-2018-11561?

CVE-2018-11561 is a high-severity vulnerability in Erc20token Project, classified under Integer Overflow or Wraparound. CVSS score: 7.5/10. Published 2018-08-08.

How severe is CVE-2018-11561?

High severity. CVSS v3 base score is 7.5 out of 10.

Integer overflow in Erc20token Project

CVE-2018-11561

An integer overflow in the unprotected distributeToken function of a smart contract implementation for EETHER (EETHER), an Ethereum ERC20 token, will lead to an unauthorized increase of an attacker's digital assets.

Vulnerability class: Integer Overflow

Published 2018-08-08 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N.

EPSS exploit prediction

EPSS: 0.009 (58.7th percentile), scored 2026-09-30.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 59th percentile — 58.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.009 · newest: 0.009 · change: 0.000

Affected products

Erc20token Project

Weakness classification (CWE)

CWE-190 — Integer Overflow or Wraparound

References

github.com/rootclay/Audit-of-smart-contracts/blob/master/0x00a0cbe98e4d110b0fa8… (Exploit, Third Party Advisory)

Frequently asked questions

What is CVE-2018-11561?: CVE-2018-11561 is a high-severity vulnerability in Erc20token Project, classified under Integer Overflow or Wraparound. CVSS score: 7.5/10. Published 2018-08-08.
How severe is CVE-2018-11561?: High severity. CVSS v3 base score is 7.5 out of 10.