CVE-2018-12454

Name: CVE-2018-12454
Creator: NVD / NIST
Published: 2018-06-17T12:29:00.237+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 1.25%

Last modified Jun 17, 2026

CVE-2018-12454 is a vulnerability of currently unknown severity. The _addguess function of a simplelottery smart contract implementation for 1000 Guess, an Ethereum gambling game, generates a random value with publicly readable variables such as the current block information and a private variable (which can be read with a getStorageAt call). Therefore, it allows attackers to always win and get rewards.. EPSS estimates a 1.25% chance of exploitation in the next 30 days.

Description

The _addguess function of a simplelottery smart contract implementation for 1000 Guess, an Ethereum gambling game, generates a random value with publicly readable variables such as the current block information and a private variable (which can be read with a getStorageAt call). Therefore, it allows attackers to always win and get rewards.

Metrics

EPSS Probability

1.25%

65.7th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-338

Affected Software

Vendor	Product	Versions
1000guess	1000 Guess	All versions

References

Timeline

Published: Jun 17, 2018
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2018-12454?

How severe is CVE-2018-12454?

Severity scoring for CVE-2018-12454 is pending analysis. The EPSS model estimates a 1.25% probability of exploitation in the next 30 days.

How do I fix CVE-2018-12454?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2018-12454?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST