CVE-2020-6097

Name: CVE-2020-6097
Creator: NVD / NIST
Published: 2020-09-10T15:15:36.65+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.5/10EPSS 2.40%

Last modified Jun 17, 2026

CVE-2020-6097 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. An exploitable denial of service vulnerability exists in the atftpd daemon functionality of atftp 0.7.git20120829-3.1+b1. A specially crafted sequence of RRQ-Multicast requests trigger an assert() call resulting in denial-of-service. EPSS estimates a 2.40% chance of exploitation in the next 30 days.

Description

An exploitable denial of service vulnerability exists in the atftpd daemon functionality of atftp 0.7.git20120829-3.1+b1. A specially crafted sequence of RRQ-Multicast requests trigger an assert() call resulting in denial-of-service. An attacker can send a sequence of malicious packets to trigger this vulnerability.

Metrics

CVSS 3.1

7.5/10

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

EPSS Probability

2.40%

81.9th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Atftp Project	Atftp	0.7.git20120829-3.1\+b1
Debian	Debian Linux	9.0
Opensuse	Leap	15.2

References

http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00058.htmlMailing List, Third Party Advisory
https://lists.debian.org/debian-lts-announce/2021/11/msg00014.htmlMailing List, Third Party Advisory
https://talosintelligence.com/vulnerability_reports/TALOS-2020-1029Exploit, Technical Description, Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00058.htmlMailing List, Third Party Advisory
https://lists.debian.org/debian-lts-announce/2021/11/msg00014.htmlMailing List, Third Party Advisory
https://talosintelligence.com/vulnerability_reports/TALOS-2020-1029Exploit, Technical Description, Third Party Advisory

Timeline

Published: Sep 10, 2020
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2020-6097?

How severe is CVE-2020-6097?

CVE-2020-6097 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 2.40% probability of exploitation in the next 30 days.

How do I fix CVE-2020-6097?

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-2020-6097?

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

Scan your code now

Source: NVD / NIST