CVE-2019-6673
HIGHCVSS 7.5/10EPSS 1.01%
Last modified
CVE-2019-6673 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. On versions 15.0.0-15.0.1 and 14.0.0-14.1.2, when the BIG-IP is configured in HTTP/2 Full Proxy mode, specifically crafted requests may cause a disruption of service provided by the Traffic Management Microkernel (TMM).. EPSS estimates a 1.01% chance of exploitation in the next 30 days.
Description
On versions 15.0.0-15.0.1 and 14.0.0-14.1.2, when the BIG-IP is configured in HTTP/2 Full Proxy mode, specifically crafted requests may cause a disruption of service provided by the Traffic Management Microkernel (TMM).
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 | >= 14.0.0, <= 14.1.2 |
| F5 | Big-Ip Access Policy Manager | >= 15.0.0, <= 15.0.1 |
| F5 | Big-Ip Advanced Firewall Manager | >= 14.0.0, <= 14.1.2 |
| F5 | Big-Ip Advanced Firewall Manager | >= 15.0.0, <= 15.0.1 |
| F5 | Big-Ip Application Acceleration Manager | >= 14.0.0, <= 14.1.2 |
| F5 | Big-Ip Application Acceleration Manager | >= 15.0.0, <= 15.0.1 |
| F5 | Big-Ip Application Security Manager | >= 14.0.0, <= 14.1.2 |
| F5 | Big-Ip Application Security Manager | >= 15.0.0, <= 15.0.1 |
| F5 | Big-Ip Fraud Protection Service | >= 14.0.0, <= 14.1.2 |
| F5 | Big-Ip Fraud Protection Service | >= 15.0.0, <= 15.0.1 |
| F5 | Big-Ip Link Controller | >= 14.0.0, <= 14.1.2 |
| F5 | Big-Ip Link Controller | >= 15.0.0, <= 15.0.1 |
| F5 | Big-Ip Local Traffic Manager | >= 14.0.0, <= 14.1.2 |
| F5 | Big-Ip Local Traffic Manager | >= 15.0.0, <= 15.0.1 |
| F5 | Big-Ip Policy Enforcement Manager | >= 14.0.0, <= 14.1.2 |
| F5 | Big-Ip Policy Enforcement Manager | >= 15.0.0, <= 15.0.1 |
References
- https://support.f5.com/csp/article/K81557381Vendor Advisory
- https://support.f5.com/csp/article/K81557381Vendor Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2019-6673?
On versions 15.0.0-15.0.1 and 14.0.0-14.1.2, when the BIG-IP is configured in HTTP/2 Full Proxy mode, specifically crafted requests may cause a disruption of service provided by the Traffic Management Microkernel (TMM).
How severe is CVE-2019-6673?
CVE-2019-6673 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 1.01% probability of exploitation in the next 30 days.
How do I fix CVE-2019-6673?
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.
Related CVEs from 2019
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- CVE-2019-6668The BIG-IP APM Edge Client for macOS bundled with BIG-IP APM…5.5
- CVE-2019-6669On BIG-IP 15.0.0-15.0.1, 14.1.0-14.1.2, 14.0.0-14.0.1, 13.1.…7.5
- CVE-2019-6670On BIG-IP 15.0.0-15.0.1, 14.1.0-14.1.2, 14.0.0-14.0.1, 13.1.…4.4
- CVE-2019-6671On BIG-IP 15.0.0-15.0.1, 14.1.0-14.1.2, 14.0.0-14.0.1, and 1…7.5
- CVE-2019-6672On BIG-IP AFM 15.0.0-15.0.1, 14.0.0-14.1.2, and 13.1.0-13.1.…7.5
- CVE-2019-6674On F5 SSL Orchestrator 15.0.0-15.0.1 and 14.0.0-14.1.2, TMM …7.5
- CVE-2019-6675BIG-IP configurations using Active Directory, LDAP, or Clien…9.8
- CVE-2019-6676On versions 15.0.0-15.0.1, 14.0.0-14.1.2.2, and 13.1.0-13.1.…7.5
- CVE-2019-6677On BIG-IP versions 15.0.0-15.0.1, 14.1.0-14.1.2, 14.0.0-14.0…7.5
- CVE-2019-6678On BIG-IP versions 15.0.0-15.0.1, 14.1.0-14.1.2.2, 14.0.0-14…5.3
- CVE-2019-6679On BIG-IP versions 15.0.0-15.0.1, 14.1.0.2-14.1.2.2, 14.0.0.…3.3
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