Vulnerability Description
On an HTTP/2 virtual server with Layer 7 DoS Protection configured, undisclosed traffic can result in an increase in memory consumption causing the Traffic Management Microkernel (TMM) process to terminate. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| F5 | Big-Ip Advanced Web Application Firewall | >= 17.1.0, <= 17.1.3 |
| F5 | Big-Ip Application Security Manager | >= 17.1.0, <= 17.1.3 |
| F5 | Big-Ip Ddos Hybrid Defender | >= 17.1.0, <= 17.1.3 |
Related Weaknesses (CWE)
References
- https://my.f5.com/manage/s/article/K000158979Vendor Advisory
FAQ
What is CVE-2026-41227?
CVE-2026-41227 is a vulnerability with a CVSS score of 7.5 (HIGH). On an HTTP/2 virtual server with Layer 7 DoS Protection configured, undisclosed traffic can result in an increase in memory consumption causing the Traffic Management Microkernel (TMM) process to term...
How severe is CVE-2026-41227?
CVE-2026-41227 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-41227?
Check the references section above for vendor advisories and patch information. Affected products include: F5 Big-Ip Advanced Web Application Firewall, F5 Big-Ip Application Security Manager, F5 Big-Ip Ddos Hybrid Defender.