CVE-2018-10831

Name: CVE-2018-10831
Creator: NVD / NIST
Published: 2018-05-09T05:29:00.217+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 0.72%

Last modified Jun 17, 2026

CVE-2018-10831 is a vulnerability of currently unknown severity. Z-NOMP before 2018-04-05 has an incorrect Equihash solution verifier that allows attackers to spoof mining shares, as demonstrated by providing a solution with {x1=1,x2=1,x3=1,...,x512=1} to bypass this verifier for any blockheader. This originally affected (for example) the Bitcoin Gold and Zcash cryptocurrencies, and continued to be exploited in the wild in May 2018 against smaller cryptocurrencies.. EPSS estimates a 0.72% chance of exploitation in the next 30 days.

Description

Z-NOMP before 2018-04-05 has an incorrect Equihash solution verifier that allows attackers to spoof mining shares, as demonstrated by providing a solution with {x1=1,x2=1,x3=1,...,x512=1} to bypass this verifier for any blockheader. This originally affected (for example) the Bitcoin Gold and Zcash cryptocurrencies, and continued to be exploited in the wild in May 2018 against smaller cryptocurrencies.

Metrics

EPSS Probability

0.72%

49.0th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-327

Affected Software

Vendor	Product	Versions
Zclassic	Z-Nomp	<= 1.0.5

References

https://blog.zencash.com/update-for-the-equihash-mining-application-z-nomp/Third Party Advisory
https://github.com/edwardz246003/misc/blob/master/Attackers%20Fake%20Computational%20Power%20to%20Steal%20Cryptocurrencies%20from%20Mining%20Pools.mdExploit, Technical Description, Third Party Advisory
https://blog.zencash.com/update-for-the-equihash-mining-application-z-nomp/Third Party Advisory
https://github.com/edwardz246003/misc/blob/master/Attackers%20Fake%20Computational%20Power%20to%20Steal%20Cryptocurrencies%20from%20Mining%20Pools.mdExploit, Technical Description, Third Party Advisory

Timeline

Published: May 9, 2018
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2018-10831?

How severe is CVE-2018-10831?

Severity scoring for CVE-2018-10831 is pending analysis. The EPSS model estimates a 0.72% probability of exploitation in the next 30 days.

How do I fix CVE-2018-10831?

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-2018-10831?

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

Scan your code now

Source: NVD / NIST