CVE-2020-26566

Name: CVE-2020-26566
Creator: NVD / NIST
Published: 2020-10-26T18:15:14.747+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.5/10EPSS 4.43%

Last modified Jun 17, 2026

CVE-2020-26566 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. A Denial of Service condition in Motion-Project Motion 3.2 through 4.3.1 allows remote unauthenticated users to cause a webu.c segmentation fault and kill the main process via a crafted HTTP request.. EPSS estimates a 4.43% chance of exploitation in the next 30 days.

Description

A Denial of Service condition in Motion-Project Motion 3.2 through 4.3.1 allows remote unauthenticated users to cause a webu.c segmentation fault and kill the main process via a crafted HTTP request.

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

4.43%

90.1th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-125

Affected Software

Vendor	Product	Versions
Motion Project	Motion	>= 3.2, <= 4.3.1

References

https://github.com/Motion-Project/motion/issues/1227#issuecomment-715927776Exploit, Issue Tracking, Third Party Advisory
https://github.com/Motion-Project/motion/releasesRelease Notes, Third Party Advisory
https://motion-project.github.io/index.htmlProduct
https://security.gentoo.org/glsa/202208-18Third Party Advisory
https://github.com/Motion-Project/motion/issues/1227#issuecomment-715927776Exploit, Issue Tracking, Third Party Advisory
https://github.com/Motion-Project/motion/releasesRelease Notes, Third Party Advisory
https://motion-project.github.io/index.htmlProduct
https://security.gentoo.org/glsa/202208-18Third Party Advisory

Timeline

Published: Oct 26, 2020
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2020-26566?

A Denial of Service condition in Motion-Project Motion 3.2 through 4.3.1 allows remote unauthenticated users to cause a webu.c segmentation fault and kill the main process via a crafted HTTP request.

How severe is CVE-2020-26566?

CVE-2020-26566 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 4.43% probability of exploitation in the next 30 days.

How do I fix CVE-2020-26566?

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-2020-26566?

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

Scan your code now

Source: NVD / NIST