CVE-2020-13822

Name: CVE-2020-13822
Creator: NVD / NIST
Published: 2020-06-04T15:15:13.51+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.7/10EPSS 2.63%

Last modified Jun 17, 2026

CVE-2020-13822 is a high-severity vulnerability rated 7.7/10 on the CVSS scale. The Elliptic package 6.5.2 for Node.js allows ECDSA signature malleability via variations in encoding, leading '\0' bytes, or integer overflows. This could conceivably have a security-relevant impact if an application relied on a single canonical signature.. EPSS estimates a 2.63% chance of exploitation in the next 30 days.

Description

The Elliptic package 6.5.2 for Node.js allows ECDSA signature malleability via variations in encoding, leading '\0' bytes, or integer overflows. This could conceivably have a security-relevant impact if an application relied on a single canonical signature.

Metrics

CVSS 3.1

7.7/10

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

EPSS Probability

2.63%

83.6th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-190

Affected Software

Vendor	Product	Versions
Indutny	Elliptic	6.5.2

References

https://github.com/indutny/elliptic/issues/226Exploit, Third Party Advisory
https://medium.com/%40herman_10687/malleability-attack-why-it-matters-7b5f59fb99a4
https://www.npmjs.com/package/ellipticThird Party Advisory
https://yondon.blog/2019/01/01/how-not-to-use-ecdsa/Third Party Advisory
https://github.com/indutny/elliptic/issues/226Exploit, Third Party Advisory
https://medium.com/%40herman_10687/malleability-attack-why-it-matters-7b5f59fb99a4
https://www.npmjs.com/package/ellipticThird Party Advisory
https://yondon.blog/2019/01/01/how-not-to-use-ecdsa/Third Party Advisory

Timeline

Published: Jun 4, 2020
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2020-13822?

How severe is CVE-2020-13822?

CVE-2020-13822 has a CVSS score of 7.7/10 (HIGH severity). The EPSS model estimates a 2.63% probability of exploitation in the next 30 days.

How do I fix CVE-2020-13822?

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-2020-13822?

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

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Source: NVD / NIST