CVE-2018-11687: An integer overflow in the distributeBTR function of a smart contract implementation for Bitcoin Red (BTCR), a

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HIGH 7.5REMOTEMITIGATE

CVE-2018-11687 is a high-severity flaw (CVSS 7.5) affecting bitcoin red. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

An integer overflow in the distributeBTR function of a smart contract implementation for Bitcoin Red (BTCR), an Ethereum ERC20 token, allows the owner to accomplish an unauthorized increase of digital assets by providing a large address[] array, as exploited in the wild in May 2018, aka the "ownerUnderflow" issue.

Why this priority

High severity
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	1.4% (top 27%)
CISA exploited list	No
Weakness	CWE-190
Published	2018-08-15
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: bitcoin red project

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

Am I affected?

Timeline

2018-08-15 17:29 UTCPublished CVE record published
2026-06-17 01:36 UTCUpdated Record last modified

bitcoin red project bitcoin red 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 bitcoin-red || rpm -q bitcoin-red || bitcoin-red --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-2018-11687?

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

Is CVE-2018-11687 being exploited?

CVE-2018-11687 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-2018-11687 affect?

CVE-2018-11687 affects bitcoin red. Severity is high (CVSS 7.5). An integer overflow in the distributeBTR function of a smart contract implementation for Bitcoin Red (BTCR), an Ethereum ERC20 token, allows the owner to accomplish an unauthorized increase of digital assets by providing a large address[] a

How urgent is CVE-2018-11687?

Priority 49/100. High severity; Remotely exploitable, no login, no user action

References

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