CVE-2018-11561: An integer overflow in the unprotected distributeToken function of a smart contract implementation for EETHER

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HIGH 7.5REMOTEMITIGATE

CVE-2018-11561 is a high-severity flaw (CVSS 7.5) affecting erc20token. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

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.

Why this priority

High severity
Public exploit reference
Remotely exploitable, no login, no user action

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	7.5 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	0.9% (top 40%)
CISA exploited list	No
Weakness	CWE-190
Published	2018-08-08
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: erc20token project

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2018-08-08 17:29 UTCPublished CVE record published
2026-06-17 01:36 UTCUpdated Record last modified

erc20token project erc20token MITIGATE

Affected: all versions

Fixed in: no fixed release known

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy erc20token || rpm -q erc20token || erc20token --version

No fixed or unaffected release known

Apply the vendor mitigation from the advisory, disable the affected feature, or restrict network access.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2018-11561?

erc20token: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2018-11561 being exploited?

CVE-2018-11561 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2018-11561 affect?

CVE-2018-11561 affects erc20token. Severity is high (CVSS 7.5). 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.

How urgent is CVE-2018-11561?

Priority 51/100. High severity; Public exploit reference; Remotely exploitable, no login, no user action

References

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