CVE-2020-5881
HIGHCVSS 7.5/10EPSS 1.28%
Last modified
CVE-2020-5881 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. On versions 15.0.0-15.1.0.1, 14.1.0-14.1.2.3, and 13.1.0-13.1.3.3, when the BIG-IP Virtual Edition (VE) is configured with VLAN groups and there are devices configured with OSPF connected to it, the Network Device Abstraction Layer (NDAL) Interfaces can lock up and in turn disrupting the communication between the mcpd and tmm processes.. EPSS estimates a 1.28% chance of exploitation in the next 30 days.
Description
On versions 15.0.0-15.1.0.1, 14.1.0-14.1.2.3, and 13.1.0-13.1.3.3, when the BIG-IP Virtual Edition (VE) is configured with VLAN groups and there are devices configured with OSPF connected to it, the Network Device Abstraction Layer (NDAL) Interfaces can lock up and in turn disrupting the communication between the mcpd and tmm processes.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| F5 | Big-Ip Access Policy Manager | >= 13.1.0, <= 13.1.3.3 |
| F5 | Big-Ip Access Policy Manager | >= 14.1.0, <= 14.1.2.3 |
| F5 | Big-Ip Access Policy Manager | >= 15.0.0, <= 15.1.0.1 |
| F5 | Big-Ip Advanced Firewall Manager | >= 13.1.0, <= 13.1.3.3 |
| F5 | Big-Ip Advanced Firewall Manager | >= 14.1.0, <= 14.1.2.3 |
| F5 | Big-Ip Advanced Firewall Manager | >= 15.0.0, <= 15.1.0.1 |
| F5 | Big-Ip Analytics | >= 13.1.0, <= 13.1.3.3 |
| F5 | Big-Ip Analytics | >= 14.1.0, <= 14.1.2.3 |
| F5 | Big-Ip Analytics | >= 15.0.0, <= 15.1.0.1 |
| F5 | Big-Ip Application Acceleration Manager | >= 13.1.0, <= 13.1.3.3 |
| F5 | Big-Ip Application Acceleration Manager | >= 14.1.0, <= 14.1.2.3 |
| F5 | Big-Ip Application Acceleration Manager | >= 15.0.0, <= 15.1.0.1 |
| F5 | Big-Ip Application Security Manager | >= 13.1.0, <= 13.1.3.3 |
| F5 | Big-Ip Application Security Manager | >= 14.1.0, <= 14.1.2.3 |
| F5 | Big-Ip Application Security Manager | >= 15.0.0, <= 15.1.0.1 |
| F5 | Big-Ip Domain Name System | >= 13.1.0, <= 13.1.3.3 |
| F5 | Big-Ip Domain Name System | >= 14.1.0, <= 14.1.2.3 |
| F5 | Big-Ip Domain Name System | >= 15.0.0, <= 15.1.0.1 |
| F5 | Big-Ip Fraud Protection Service | >= 13.1.0, <= 13.1.3.3 |
| F5 | Big-Ip Fraud Protection Service | >= 14.1.0, <= 14.1.2.3 |
| F5 | Big-Ip Fraud Protection Service | >= 15.0.0, <= 15.1.0.1 |
| F5 | Big-Ip Global Traffic Manager | >= 13.1.0, <= 13.1.3.3 |
| F5 | Big-Ip Global Traffic Manager | >= 14.1.0, <= 14.1.2.3 |
| F5 | Big-Ip Global Traffic Manager | >= 15.0.0, <= 15.1.0.1 |
| F5 | Big-Ip Link Controller | >= 13.1.0, <= 13.1.3.3 |
| F5 | Big-Ip Link Controller | >= 14.1.0, <= 14.1.2.3 |
| F5 | Big-Ip Link Controller | >= 15.0.0, <= 15.1.0.1 |
| F5 | Big-Ip Local Traffic Manager | >= 13.1.0, <= 13.1.3.3 |
| F5 | Big-Ip Local Traffic Manager | >= 14.1.0, <= 14.1.2.3 |
| F5 | Big-Ip Local Traffic Manager | >= 15.0.0, <= 15.1.0.1 |
| F5 | Big-Ip Policy Enforcement Manager | >= 13.1.0, <= 13.1.3.3 |
| F5 | Big-Ip Policy Enforcement Manager | >= 14.1.0, <= 14.1.2.3 |
| F5 | Big-Ip Policy Enforcement Manager | >= 15.0.0, <= 15.1.0.1 |
References
- https://support.f5.com/csp/article/K03386032Vendor Advisory
- https://support.f5.com/csp/article/K03386032Vendor Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2020-5881?
On versions 15.0.0-15.1.0.1, 14.1.0-14.1.2.3, and 13.1.0-13.1.3.3, when the BIG-IP Virtual Edition (VE) is configured with VLAN groups and there are devices configured with OSPF connected to it, the Network Device Abstraction Layer (NDAL) Interfaces can lock up and in turn disrupting the communication between the mcpd and tmm processes.
How severe is CVE-2020-5881?
CVE-2020-5881 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 1.28% probability of exploitation in the next 30 days.
How do I fix CVE-2020-5881?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
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Are you affected by CVE-2020-5881?
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