CVE-2018-6439: broadcom fabric_operating_system
CVSS: 7.8v3.1HighModified
Published 03-12-2018Last modified 03-06-2026
Vulnerability summary
CVE-2018-6439 is a high (CVSS 7.8) vulnerability in broadcom fabric_operating_system. EPSS estimates a 0.35% chance of exploitation in the next 30 days, higher than 27% of scored vulnerabilities.
CVSS score
7.8/10
010
High · v3.1 (CVE.org)EPSS score
0.35%
0%100%
Low · 0.00 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded
Timeline
- 03-12-2018PublishedVulnerability first disclosed.
- 03-06-2026Last modifiedVulnerability information updated.
Description
A Vulnerability in the configdownload command of Brocade Fabric OS command line interface (CLI) versions before 8.2.1, 8.1.2f, 8.0.2f, 7.4.2d could allow a local attacker to escape the restricted shell and, gain root access.
CVSS metrics
4 scores · 2 sources · 3 versionsHigh 7.8Preferred score · CVE.org (CNA)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HSourcesAll 2 agree
- NVDNIST7.8HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
High 7.8Preferred score · NVD (NIST)
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HSourcesSingle source
High 7.2Preferred score · NVD (NIST)
AV:L/AC:L/Au:N/C:C/I:C/A:CSourcesSingle source
EPSS trend
Probability
0.35%
Chance of exploitation in the next 30 days
Percentile
27%
Versus all other CVEs
30-day change
0.00 pp
From 0.35% on 19-09-2026
19-09-202619-10-2026
EPSS score0.35%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeNo weakness data has been published for this record.
Affected systems
Broadcom1 product
- fabric_operating_system≥ 7.4.2, < 7.4.2d | ≥ 8.0.2, < 8.0.2f | ≥ 8.1.2, < 8.1.2f | ≥ 8.2.0, < 8.2.1
Brocade communications systems, inc.1 product
- brocade fabric osAll versions prior to version 8.2.1, 8.1.2f, 8.0.2f, 7.4.2d
2 vendors · 2 products