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CVE-2018-11239

24
FAUCET Score

CVE-2018-11239 describes an integer overflow in the _transfer function of the Hexagon (HXG) Ethereum ERC20 token smart contract. This vulnerability allows an attacker to illicitly increase their digital assets by manipulating the _to and _value arguments during a transfer. Rated 7.5 HIGH on CVSS, it is a network-exploitable vulnerability with low attack complexity and high impact on integrity, requiring no user interaction or privileges. While exploited in the wild in May 2018, there is no public exploit code available, nor significant community discussion or media coverage surrounding this issue.

Impacted Technologies

VendorProductVersion(s)CPE
Range not provided by sourceCPE matchmatch criteria
cpe:2.3:a:hexagontoken:hexagon:-:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

7.5HIGH

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
HIGH
Availability Impact
NONE
Exploitability Score
3.9
Impact Score
3.6
CvssVersion
3.0

Exploit Intelligence

EPSS Score
0.93%
Probability of exploitation in next 30 days
EPSS Percentile
56.8%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
This CVE's current EPSS score of 0.0093 is in the 31st percentile among its peer group of 51,485 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

peckshield.com / 2018/05/18/burnOverflow
ExploitThird Party Advisory