CVE-2020-15112

Name: CVE-2020-15112
Creator: NVD / NIST
Published: 2020-08-05T20:15:14.553+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 6.5/10EPSS 1.26%

Last modified Jun 17, 2026

CVE-2020-15112 is a medium-severity vulnerability rated 6.5/10 on the CVSS scale. In etcd before versions 3.3.23 and 3.4.10, it is possible to have an entry index greater then the number of entries in the ReadAll method in wal/wal.go. This could cause issues when WAL entries are being read during consensus as an arbitrary etcd consensus participant could go down from a runtime panic when reading the entry.. EPSS estimates a 1.26% chance of exploitation in the next 30 days.

Description

In etcd before versions 3.3.23 and 3.4.10, it is possible to have an entry index greater then the number of entries in the ReadAll method in wal/wal.go. This could cause issues when WAL entries are being read during consensus as an arbitrary etcd consensus participant could go down from a runtime panic when reading the entry.

Metrics

CVSS 3.1

6.5/10

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

EPSS Probability

1.26%

65.8th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Etcd	Etcd	< 3.3.23
Etcd	Etcd	>= 3.4.0, < 3.4.10
Fedoraproject	Fedora	32

References

Timeline

Published: Aug 5, 2020
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2020-15112?

How severe is CVE-2020-15112?

CVE-2020-15112 has a CVSS score of 6.5/10 (MEDIUM severity). The EPSS model estimates a 1.26% probability of exploitation in the next 30 days.

How do I fix CVE-2020-15112?

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-2020-15112?

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

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Source: NVD / NIST