CVE-2020-1964

Name: CVE-2020-1964
Creator: NVD / NIST
Published: 2020-04-16T19:15:28.29+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.8/10EPSS 4.81%

Last modified Jun 17, 2026

CVE-2020-1964 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. It was noticed that Apache Heron 0.20.2-incubating, Release 0.20.1-incubating, and Release v-0.20.0-incubating does not configure its YAML parser to prevent the instantiation of arbitrary types, resulting in a remote code execution vulnerabilities (CWE-502: Deserialization of Untrusted Data).. EPSS estimates a 4.81% chance of exploitation in the next 30 days.

Description

It was noticed that Apache Heron 0.20.2-incubating, Release 0.20.1-incubating, and Release v-0.20.0-incubating does not configure its YAML parser to prevent the instantiation of arbitrary types, resulting in a remote code execution vulnerabilities (CWE-502: Deserialization of Untrusted Data).

Metrics

CVSS 3.1

9.8/10

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

EPSS Probability

4.81%

90.8th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-502

Affected Software

Vendor	Product	Versions
Apache	Heron	0.20.0-incubating
Apache	Heron	0.20.1-incubating
Apache	Heron	0.20.2-incubating

References

Timeline

Published: Apr 16, 2020
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2020-1964?

How severe is CVE-2020-1964?

CVE-2020-1964 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 4.81% probability of exploitation in the next 30 days.

How do I fix CVE-2020-1964?

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-2020-1964?

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

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Source: NVD / NIST