CVE-2018-3756

Name: CVE-2018-3756
Creator: NVD / NIST
Published: 2018-06-01T19:29:00.363+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 0.82%

Last modified Jun 17, 2026

CVE-2018-3756 is a vulnerability of currently unknown severity. Hyperledger Iroha versions v1.0_beta and v1.0.0_beta-1 are vulnerable to transaction and block signature verification bypass in the transaction and block validator allowing a single node to sign a transaction and/or block multiple times, each with a random nonce, and have other validating nodes accept them as separate valid signatures.. EPSS estimates a 0.82% chance of exploitation in the next 30 days.

Description

Hyperledger Iroha versions v1.0_beta and v1.0.0_beta-1 are vulnerable to transaction and block signature verification bypass in the transaction and block validator allowing a single node to sign a transaction and/or block multiple times, each with a random nonce, and have other validating nodes accept them as separate valid signatures.

Metrics

EPSS Probability

0.82%

52.4th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-347

Affected Software

Vendor	Product	Versions	Update
Hyperledger	Iroha	1.0	Beta
Hyperledger	Iroha	1.0.0	Beta1

References

https://github.com/hyperledger/iroha/releases/tag/v1.0.0_beta-2Third Party Advisory
https://github.com/hyperledger/iroha/releases/tag/v1.0.0_beta-2Third Party Advisory

Timeline

Published: Jun 1, 2018
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2018-3756?

How severe is CVE-2018-3756?

Severity scoring for CVE-2018-3756 is pending analysis. The EPSS model estimates a 0.82% probability of exploitation in the next 30 days.

How do I fix CVE-2018-3756?

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-2018-3756?

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

Scan your code now

Source: NVD / NIST