CVE-2018-17968: A gambling smart contract implementation for RuletkaIo, an Ethereum gambling game, generates a random value th

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HIGH 7.5REMOTEMITIGATE

CVE-2018-17968 is a high-severity flaw (CVSS 7.5) affecting ruletkaio. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

A gambling smart contract implementation for RuletkaIo, an Ethereum gambling game, generates a random value that is predictable by an external contract call. The developer wrote a random() function that uses a block timestamp and block hash from the Ethereum blockchain. This can be predicted by writing the same random function code in an exploit contract to determine the deadSeat value.

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	1.2% (top 32%)
CISA exploited list	No
Weakness	CWE-338
Published	2018-10-23
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: ruletkaio

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

Am I affected?

Timeline

2018-10-23 21:30 UTCPublished CVE record published
2026-06-17 01:46 UTCUpdated Record last modified

ruletkaio ruletkaio 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 ruletkaio || rpm -q ruletkaio || ruletkaio --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-2018-17968?

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

Is CVE-2018-17968 being exploited?

CVE-2018-17968 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-2018-17968 affect?

CVE-2018-17968 affects ruletkaio. Severity is high (CVSS 7.5). A gambling smart contract implementation for RuletkaIo, an Ethereum gambling game, generates a random value that is predictable by an external contract call. The developer wrote a random() function that uses a block timestamp and block hash

How urgent is CVE-2018-17968?

Priority 53/100. High severity; Public exploit reference; Remotely exploitable, no login, no user action

References

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