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CVE-2018-6441

24
FAUCET Score

CVE-2018-6441 describes a vulnerability in the Secure Shell (SSH) implementation of Brocade Fabric OS versions prior to 8.2.1, 8.1.2f, 8.0.2f, and 7.4.2d. This flaw allows a local attacker to bypass the restricted configuration shell by providing arbitrary environment variables. Rated with a CVSS score of 7.8 (High), the vulnerability has a low attack complexity and requires local privileges, but could lead to high impacts on confidentiality, integrity, and availability. Currently, there is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
>= 7.4.2, < 7.4.2dCPE matchmatch criteria
cpe:2.3:o:broadcom:fabric_operating_system:*:*:*:*:*:*:*:*
>= 8.0.2, < 8.0.2fCPE matchmatch criteria
cpe:2.3:o:broadcom:fabric_operating_system:*:*:*:*:*:*:*:*
>= 8.1.2, < 8.1.2fCPE matchmatch criteria
cpe:2.3:o:broadcom:fabric_operating_system:*:*:*:*:*:*:*:*
>= 8.2.0, < 8.2.1CPE matchmatch criteria
cpe:2.3:o:broadcom:fabric_operating_system:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

7.8HIGH

CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
1.8
Impact Score
5.9
CvssVersion
3.0

Exploit Intelligence

EPSS Score
0.39%
Probability of exploitation in next 30 days
EPSS Percentile
32.0%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0039 is in the 71st percentile among its peer group of 17,061 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.2 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

broadcom.com / support/fibre-channel-networking/security-advisories/brocade-security-advisory-2018-734
Vendor Advisory