CVE-2021-36779

Name: CVE-2021-36779
Creator: NVD / NIST
Published: 2021-12-17T09:15:06.923+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.6/10EPSS 0.66%

Last modified Jun 17, 2026

CVE-2021-36779 is a critical-severity vulnerability rated 9.6/10 on the CVSS scale. A Missing Authentication for Critical Function vulnerability in SUSE Longhorn allows any workload in the cluster to execute any binary present in the image on the host without authentication. This issue affects: SUSE Longhorn longhorn versions prior to 1.1.3; longhorn versions prior to 1.2.3.. EPSS estimates a 0.66% chance of exploitation in the next 30 days.

Description

A Missing Authentication for Critical Function vulnerability in SUSE Longhorn allows any workload in the cluster to execute any binary present in the image on the host without authentication. This issue affects: SUSE Longhorn longhorn versions prior to 1.1.3; longhorn versions prior to 1.2.3.

Metrics

CVSS 3.1

9.6/10

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

EPSS Probability

0.66%

47.0th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Linuxfoundation	Longhorn	< 1.1.3
Linuxfoundation	Longhorn	>= 1.2.0, < 1.2.3

References

https://bugzilla.suse.com/show_bug.cgi?id=1191818Issue Tracking, Vendor Advisory
https://github.com/longhorn/longhorn/security/advisories/GHSA-g358-m2wp-mhhxVendor Advisory
https://bugzilla.suse.com/show_bug.cgi?id=1191818Issue Tracking, Vendor Advisory
https://github.com/longhorn/longhorn/security/advisories/GHSA-g358-m2wp-mhhxVendor Advisory

Timeline

Published: Dec 17, 2021
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-36779?

How severe is CVE-2021-36779?

CVE-2021-36779 has a CVSS score of 9.6/10 (CRITICAL severity). The EPSS model estimates a 0.66% probability of exploitation in the next 30 days.

How do I fix CVE-2021-36779?

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-2021-36779?

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

Scan your code now

Source: NVD / NIST