CVE-2021-23039
HIGHF5 BIG-IP 12.1.0-12.1.5, 13.1.x, 14.1.0-14.1.2.7, 15.1.0-15.1.2, 16.0.0-16.0.1.1 - Denial of Service via IPSec Request
Title source: llmDescription
On version 16.0.x before 16.0.1.2, 15.1.x before 15.1.3, 14.1.x before 14.1.2.8, and all versions of 13.1.x and 12.1.x, when IPSec is configured on a BIG-IP system, undisclosed requests from an authorized remote (IPSec) peer, which already has a negotiated Security Association, can cause the Traffic Management Microkernel (TMM) to terminate. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.
References (1)
Core 1
Core References
Mitigation, Vendor Advisory x_refsource_misc
https://support.f5.com/csp/article/K66782293
Scores
CVSS v3
7.5
EPSS
0.0057
EPSS Percentile
69.0%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Details
CWE
CWE-20
Status
published
Products (11)
f5/big-ip_access_policy_manager
12.1.0 - 12.1.6
f5/big-ip_advanced_firewall_manager
12.1.0 - 12.1.6
f5/big-ip_analytics
12.1.0 - 12.1.6
f5/big-ip_application_acceleration_manager
12.1.0 - 12.1.6
f5/big-ip_application_security_manager
12.1.0 - 12.1.6
f5/big-ip_domain_name_system
12.1.0 - 12.1.6
f5/big-ip_fraud_protection_service
12.1.0 - 12.1.6
f5/big-ip_global_traffic_manager
12.1.0 - 12.1.6
f5/big-ip_link_controller
12.1.0 - 12.1.6
f5/big-ip_local_traffic_manager
12.1.0 - 12.1.6
... and 1 more
Published
Sep 14, 2021
Tracked Since
Feb 18, 2026