CVE-2020-12118

Name: CVE-2020-12118
Creator: NVD / NIST
Published: 2020-04-23T22:15:12.913+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 8.2/10EPSS 1.42%

Last modified Jun 17, 2026

CVE-2020-12118 is a high-severity vulnerability rated 8.2/10 on the CVSS scale. The keygen protocol implementation in Binance tss-lib before 1.2.0 allows attackers to generate crafted h1 and h2 parameters in order to compromise a signing round or obtain sensitive information from other parties.. EPSS estimates a 1.42% chance of exploitation in the next 30 days.

Description

The keygen protocol implementation in Binance tss-lib before 1.2.0 allows attackers to generate crafted h1 and h2 parameters in order to compromise a signing round or obtain sensitive information from other parties.

Metrics

CVSS 3.1

8.2/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N

EPSS Probability

1.42%

69.5th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-276

Affected Software

Vendor	Product	Versions
Binance	Tss-Lib	< 1.2.0

References

https://github.com/binance-chain/tss-lib/pull/89Patch, Third Party Advisory
https://github.com/binance-chain/tss-lib/releases/tag/v1.2.0Release Notes, Third Party Advisory
https://github.com/binance-chain/tss-lib/pull/89Patch, Third Party Advisory
https://github.com/binance-chain/tss-lib/releases/tag/v1.2.0Release Notes, Third Party Advisory

Timeline

Published: Apr 23, 2020
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2020-12118?

How severe is CVE-2020-12118?

CVE-2020-12118 has a CVSS score of 8.2/10 (HIGH severity). The EPSS model estimates a 1.42% probability of exploitation in the next 30 days.

How do I fix CVE-2020-12118?

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-2020-12118?

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

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Source: NVD / NIST