Description

For unspecified traffic patterns, BIG-IP AFM IPS engine may spend an excessive amount of time matching the traffic against signatures, resulting in Traffic Management Microkernel (TMM) restarting and traffic disruption.  Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated

Classification

CVE ID: CVE-2024-21771

CVSS Base Severity: HIGH

CVSS Base Score: 7.5

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

Affected Products

Vendor: F5

Product: BIG-IP

Exploit Prediction Scoring System (EPSS)

EPSS Score: 0.27% (probability of being exploited)

EPSS Percentile: 49.94% (scored less or equal to compared to others)

EPSS Date: 2025-04-22 (when was this score calculated)

Stakeholder-Specific Vulnerability Categorization (SSVC)

SSVC Exploitation: none

SSVC Technical Impact: partial

SSVC Automatable: true

References

https://nvd.nist.gov/vuln/detail/CVE-2024-21771
https://my.f5.com/manage/s/article/K000137595

Timeline