CVE-2018-5540 json
On F5 BIG-IP 13.0.0-13.0.1, 12.1.0-12.1.3.3, 11.6.0-11.6.3.1, or 11.5.1-11.5.6, Enterprise Manager 3.1.1, BIG-IQ Centralized Management 5.0…
published 2018-07-19 8 y ago modified 2026-06-17 4 mo ago also EUVD-2018-17309
- cvss
- 4.4
- version 3.0, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.4%
- EPSS 0.4% chance of exploitation in 30 days, percentile 35%
- public exploits
- 0
- none known
Summary
On F5 BIG-IP 13.0.0-13.0.1, 12.1.0-12.1.3.3, 11.6.0-11.6.3.1, or 11.5.1-11.5.6, Enterprise Manager 3.1.1, BIG-IQ Centralized Management 5.0.0-5.1.0, BIG-IQ Cloud and Orchestration 1.0.0, or F5 iWorkflow 2.1.0-2.3.0 the big3d process does not irrevocably minimize group privileges at start up.
Exploit prediction
0.41% chance of exploitation in the next 30 days, higher than 35% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.0 | 4.4 | CVSS:3.0/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N |
| NVD | 2.0 | 2.1 | AV:L/AC:L/Au:N/C:P/I:N/A:N |
Affected products
- F5 Networks, Inc. BIG-IP (DNS, GTM)
- F5 Networks, Inc. Enterprise Manager
- F5 Networks, Inc. BIG-IQ Centralized Management
- F5 Networks, Inc. BIG-IQ Cloud and Orchestration
- F5 Networks, Inc. F5 iWorkflow
Classification
- Weakness
-
- CWE-732 Incorrect Permission Assignment for Critical Resource
References
-
support.f5.com
/csp/article/K82038789
vendor-advisory
-
securitytracker.com
/id/1041340
vdb-entry, third-party-advisory
-
securityfocus.com
/bid/104920
vdb-entry, third-party-advisory
-
securitytracker.com
/id/1041341
vdb-entry, third-party-advisory
Sources
- CVE List CVE-2018-5540
- NVD CVE-2018-5540
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.