VULNERABILITY INTELLIGENCE

CVE-2018-11239

CVSS score7.5 HIGH
EPSS probability0.91%
CISA KEVNot currently listed
Published2018-05-19
Last modified2026-06-17
CVSS vectorCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

Description

An integer overflow in the _transfer function of a smart contract implementation for Hexagon (HXG), an Ethereum ERC20 token, allows attackers to accomplish an unauthorized increase of digital assets by providing a _to argument in conjunction with a large _value argument, as exploited in the wild in May 2018, aka the "burnOverflow" issue.

Weakness classification

  • CWE-190: Integer Overflow or Wraparound

Primary references