CVE-2025-21091 8.7 high EPSS 0.5%
When SNMP v1 or v2c are disabled on the BIG-IP, undisclosed requests can cause an increase in memory resource utilization.
Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated
Severity
CVSS 4.0 8.7 high CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:LEnable JavaScript to see the metric table and diagram.
CVSS 3.1 7.5 high CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HEnable JavaScript to see the metric table and diagram.
EPSS 0.5% chance of exploitation in the next 30 days; higher than 39% of CVEs (scores of 2026-10-31)
CWE CWE-401
Published 2025-02-05
Modified 2026-06-17
Record from the NVD, synced 2026-10-19 Affected f5:big-ip_access_policy_manager f5:big-ip_advanced_firewall_manager f5:big-ip_advanced_web_application_firewall f5:big-ip_analytics f5:big-ip_application_acceleration_manager f5:big-ip_application_security_manager f5:big-ip_application_visibility_and_reporting f5:big-ip_automation_toolchain f5:big-ip_carrier-grade_nat f5:big-ip_container_ingress_services f5:big-ip_ddos_hybrid_defender f5:big-ip_domain_name_system f5:big-ip_edge_gateway f5:big-ip_fraud_protection_service f5:big-ip_global_traffic_manager f5:big-ip_link_controller f5:big-ip_local_traffic_manager f5:big-ip_policy_enforcement_manager f5:big-ip_ssl_orchestrator f5:big-ip_webaccelerator f5:big-ip_websafe References Check your stack JSON