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CVE-2021-36779

30
FAUCET Score

CVE-2021-36779 is a critical missing authentication vulnerability in SUSE Longhorn versions prior to 1.1.3 and 1.2.3, allowing any workload within the cluster to execute arbitrary binaries on the host without authentication. With a CVSS score of 9.6 (CRITICAL), this vulnerability presents a significant risk due to its low attack complexity (AV:A/AC:L) and complete compromise potential (C:H/I:H/A:H). While no public exploit code (Metasploit, Nuclei, ExploitDB) or active exploitation (KEV) has been observed, and community discussion is minimal, the high FAUCET Risk Score of 75/100 indicates its severe potential impact.

Impacted Technologies

VendorProductVersion(s)CPE
< 1.1.3CPE matchmatch criteria
cpe:2.3:a:linuxfoundation:longhorn:*:*:*:*:*:*:*:*
>= 1.2.0, < 1.2.3CPE matchmatch criteria
cpe:2.3:a:linuxfoundation:longhorn:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

9.6CRITICAL

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

Attack Vector
ADJACENT_NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
CHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
2.8
Impact Score
6.0
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.66%
Probability of exploitation in next 30 days
EPSS Percentile
48.0%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0066 is in the 57th percentile among its peer group of 64 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.4 Bluesky, 0.2 Mastodon, and 1.3 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Vendor Patches (1)

github_advisoryvendor investigatingvia nvd_reference
View patch

References

bugzilla.suse.com / show_bug.cgi
Issue TrackingVendor Advisory
github.com / longhorn/longhorn/security/advisories/GHSA-g358-m2wp-mhhx
Vendor Advisory