CVE-2020-27713

7.5 highEPSS 1.3%

High (7.5) in f5 big-ip advanced firewall manager. EPSS 1.3% chance of exploitation in the next 30 days.

In certain configurations on version 13.1.3.4, when a BIG-IP AFM HTTP security profile is applied to a virtual server and the BIG-IP system receives a request with specific characteristics, the connection is reset and the Traffic Management Microkernel (TMM) leaks memory.

Severity

CVSS 3.1

7.5 high

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS: 1.3% chance of exploitation in the next 30 days; higher than 69% of CVEs (scores of 2026-10-31)
CWE: CWE-401
Published: 2020-12-11
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

f5:big-ip_advanced_firewall_manager

References

https://support.f5.com/csp/article/K37960100
https://support.f5.com/csp/article/K37960100

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