CVE-2026-41227: On an HTTP/2 virtual server with Layer 7 DoS Protection configured, undisclosed traffic can result in an increase in…
CVE-2026-41227 · Severity: high · CVSS 7.5 · Published 2026-05-13
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.
No. Junglewise Threat Intelligence has no report of CVE-2026-41227 being exploited in the wild.
How severe is CVE-2026-41227?
High severity, with a CVSS score of 7.5, published 13 May 2026.
Which products and versions are affected?
F5 BIG-IP Not specified (EoTS versions excluded).
Is there a fix for CVE-2026-41227?
No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
Am I affected by CVE-2026-41227?
Check whether you run F5 BIG-IP at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.