An integer overflow in the _transfer function of a smart contract implementation for…
Priority LOW 35CWE-190Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- None · High · None
- Fix status
- No fix listed
Attack profile from CVSS 3.0 · NVD. Fix status from CNA.
Summary
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.
Why it matters now
EPSS 0.00894 59th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix No fix listed No fixed version in the sources yet
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:hexagontoken:hexagon:-:*:*:*:*:*:*:* | not specified by NVD | Vulnerable | Hexagontoken |
- cpe:2.3:a:hexagontoken:hexagon:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·Hexagontoken
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2018-11239
- 2026-10-03 Alias added: GHSA-gqmr-2cq4-rr3c
References
Sources
- CVE-2018-11239 · CVE Program
- CVE-2018-11239 · NVD
- FIRST EPSS
- GHSA-gqmr-2cq4-rr3c · GitHub Advisory Database · CC BY 4.0
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