CVE-2020-6072

Name: CVE-2020-6072
Creator: NVD / NIST
Published: 2020-03-24T21:15:14.143+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.8/10EPSS 3.61%

Last modified Jun 17, 2026

CVE-2020-6072 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. An exploitable code execution vulnerability exists in the label-parsing functionality of Videolabs libmicrodns 0.1.0. When parsing compressed labels in mDNS messages, the rr_decode function's return value is not checked, leading to a double free that could be exploited to execute arbitrary code. EPSS estimates a 3.61% chance of exploitation in the next 30 days.

Description

An exploitable code execution vulnerability exists in the label-parsing functionality of Videolabs libmicrodns 0.1.0. When parsing compressed labels in mDNS messages, the rr_decode function's return value is not checked, leading to a double free that could be exploited to execute arbitrary code. An attacker can send an mDNS message to trigger this vulnerability.

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

3.61%

88.0th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-415

Affected Software

Vendor	Product	Versions
Videolabs	Libmicrodns	0.1.0
Debian	Debian Linux	9.0

References

https://security.gentoo.org/glsa/202005-10Third Party Advisory
https://talosintelligence.com/vulnerability_reports/TALOS-2020-0995Exploit, Technical Description, Third Party Advisory
https://www.debian.org/security/2020/dsa-4671Third Party Advisory
https://security.gentoo.org/glsa/202005-10Third Party Advisory
https://talosintelligence.com/vulnerability_reports/TALOS-2020-0995Exploit, Technical Description, Third Party Advisory
https://www.debian.org/security/2020/dsa-4671Third Party Advisory

Timeline

Published: Mar 24, 2020
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2020-6072?

How severe is CVE-2020-6072?

CVE-2020-6072 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 3.61% probability of exploitation in the next 30 days.

How do I fix CVE-2020-6072?

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-2020-6072?

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

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Source: NVD / NIST