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…
Priority LOW 19Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- High
- Impact type
- —
- Confidentiality · integrity · availability
- None · Low · None
- Fix status
- No fix listed
Attack profile from CVSS 3.0 · NVD. Fix status from CNA.
Summary
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".
Why it matters now
EPSS 0.00782 56th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| F5 | BIG-IP (DNS) | 13.1.0-13.1.0.7; 12.1.3-12.1.3.5 | — | No fix listed | CNA |
- BIG-IP (DNS) VendorF5 Affected 13.1.0-13.1.0.7; 12.1.3-12.1.3.5 Fixed in — No fix listed CNA
CPE configurations NVD · 4
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:f5:big-ip_domain_name_system:*:*:*:*:*:*:*:* | 12.1.3 – 12.1.3.5; after 13.1.0, up to 13.1.0.7 | Vulnerable | F5 |
| cpe:2.3:a:f5:big-ip_global_traffic_manager:*:*:*:*:*:*:*:* | 12.1.3 – 12.1.3.5; 13.1.0 – 13.1.0.7 | Vulnerable | F5 |
| cpe:2.3:a:f5:big-ip_local_traffic_manager:*:*:*:*:*:*:*:* | 12.1.3 – 12.1.3.5; 13.1.0 – 13.1.0.7 | Vulnerable | F5 |
| cpe:2.3:a:f5:big-ip_link_controller:*:*:*:*:*:*:*:* | 12.1.3 – 12.1.3.5; 13.1.0 – 13.1.0.7 | Vulnerable | F5 |
- cpe:2.3:a:f5:big-ip_domain_name_system:*:*:*:*:*:*:*:* Versions 12.1.3 – 12.1.3.5; after 13.1.0, up to 13.1.0.7 Vulnerable ·F5
- cpe:2.3:a:f5:big-ip_global_traffic_manager:*:*:*:*:*:*:*:* Versions 12.1.3 – 12.1.3.5; 13.1.0 – 13.1.0.7 Vulnerable ·F5
- cpe:2.3:a:f5:big-ip_local_traffic_manager:*:*:*:*:*:*:*:* Versions 12.1.3 – 12.1.3.5; 13.1.0 – 13.1.0.7 Vulnerable ·F5
- cpe:2.3:a:f5:big-ip_link_controller:*:*:*:*:*:*:*:* Versions 12.1.3 – 12.1.3.5; 13.1.0 – 13.1.0.7 Vulnerable ·F5
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2018-5538
- 2026-10-03 Alias added: GHSA-vjx8-8j32-57mf
References
More F5 Big-ip Domain Name System vulnerabilities
- TI-2023-25230 BIG-IP Configuration utility unauthenticated remote code execution vulnerability KEVCVSS 3.1CRITICAL 9.8
- TI-2022-01269 Missing authentication in F5 BIG-IP KEVCVSS 3.1CRITICAL 9.8
- TI-2021-05850 Memory corruption in BIG-IP KEVCVSS 3.1CRITICAL 9.8
- TI-2021-05845 Server-side request forgery in BIG-IP; BIG-IQ KEVCVSS 3.1CRITICAL 9.8
- TI-2020-04820 Path traversal in BIG-IP KEVCVSS 3.1CRITICAL 9.8
- TI-2023-25231 BIG-IP Configuration utility authenticated SQL injection vulnerability KEVCVSS 3.1HIGH 8.8
Sources
- CVE-2018-5538 · CVE Program
- CVE-2018-5538 · NVD
- FIRST EPSS
- GHSA-vjx8-8j32-57mf · GitHub Advisory Database · CC BY 4.0
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