CVE-2018-5538: f5 networks, inc. big-ip (dns)
Vulnerability summary
CVE-2018-5538 is a medium (CVSS 4.3) vulnerability in f5 networks, inc. big-ip (dns). EPSS estimates a 0.78% chance of exploitation in the next 30 days, higher than 55.1% of scored vulnerabilities.
Timeline
- 25-07-2018PublishedVulnerability first disclosed.
- 17-09-2024Last modifiedVulnerability information updated.
Description
On F5 BIG-IP DNS 13.1.0-13.1.0.7, 12.1.3-12.1.3.5, DNS Express / DNS Zones accept NOTIFY messages on the management interface from source IP addresses not listed in the 'Allow NOTIFY From' configuration parameter when the db variable "dnsexpress.notifyport" is set to any value other than the default of "0".
CVSS metrics
2 scores · 1 source · 2 versionsEPSS trend
Probability
0.78%
Chance of exploitation in the next 30 days
Percentile
55%
Versus all other CVEs
30-day change
0.00 pp
From 0.78% on 18-09-2026
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
F54 products
- big-ip_domain_name_system≥ 12.1.3, ≤ 12.1.3.5 | > 13.1.0, ≤ 13.1.0.7
- big-ip_global_traffic_manager≥ 12.1.3, ≤ 12.1.3.5 | ≥ 13.1.0, ≤ 13.1.0.7
- big-ip_link_controller≥ 12.1.3, ≤ 12.1.3.5 | ≥ 13.1.0, ≤ 13.1.0.7
- big-ip_local_traffic_manager≥ 12.1.3, ≤ 12.1.3.5 | ≥ 13.1.0, ≤ 13.1.0.7
F5 networks, inc.1 product
- big-ip (dns)13.1.0-13.1.0.7 | 12.1.3-12.1.3.5
2 vendors · 5 products