What is CVE-2018-11239?

CVE-2018-11239 is a high-severity vulnerability in Hexagontoken Hexagon, classified under Integer Overflow or Wraparound. CVSS score: 7.5/10. Published 2018-05-19.

How severe is CVE-2018-11239?

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

Is CVE-2018-11239 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Integer overflow in Hexagontoken Hexagon

CVE-2018-11239

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.

Vulnerability class: Integer Overflow

EPSS: 0.009 (56.8th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N.

Affected products

Hexagontoken Hexagon
N/a — versions n/a

Weakness classification (CWE)

CWE-190 — Integer Overflow or Wraparound

Public proof-of-concept exploits

ARPSyndicate/cve-scores

References

cve@mitre.org (Exploit, Third Party Advisory, x_refsource_MISC)

Frequently asked questions

What is CVE-2018-11239?: CVE-2018-11239 is a high-severity vulnerability in Hexagontoken Hexagon, classified under Integer Overflow or Wraparound. CVSS score: 7.5/10. Published 2018-05-19.
How severe is CVE-2018-11239?: High severity. CVSS v3 base score is 7.5 out of 10.
Is CVE-2018-11239 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.