CVE-2025-53521

CRITICAL
KEV

F5 BIG-IP Stack-Based Buffer Overflow Vulnerability

Details

CVSS v3: 9.8
CVSS v4: 9.3
NVD published: 2025-10-15 14:15:48
CISA date: 2026-03-27
EPSS: 19.2% probability · 95.3th percentile — 2026-03-30
Affected versions: cpe:2.3:a:f5:big-ip_access_policy_manager:*:*:*:*:*:*:*:* cpe:2.3:a:f5:big-ip_advanced_firewall_manager:*:*:*:*:*:*:*:* cpe:2.3:a:f5:big-ip_advanced_web_application_firewall:*:*:*:*:*:*:*:* cpe:2.3:a:f5:big-ip_analytics:*:*:*:*:*:*:*:* cpe:2.3:a:f5:big-ip_application_acceleration_manager:*:*:*:*:*:*:*:* cpe:2.3:a:f5:big-ip_application_security_manager:*:*:*:*:*:*:*:* cpe:2.3:a:f5:big-ip_application_visibility_and_reporting:*:*:*:*:*:*:*:* cpe:2.3:a:f5:big-ip_automation_toolchain:*:*:*:*:*:*:*:* cpe:2.3:a:f5:big-ip_carrier-grade_nat:*:*:*:*:*:*:*:* cpe:2.3:a:f5:big-ip_container_ingress_services:*:*:*:*:*:*:*:* cpe:2.3:a:f5:big-ip_ddos_hybrid_defender:*:*:*:*:*:*:*:* cpe:2.3:a:f5:big-ip_domain_name_system:*:*:*:*:*:*:*:* cpe:2.3:a:f5:big-ip_edge_gateway:*:*:*:*:*:*:*:* cpe:2.3:a:f5:big-ip_fraud_protection_service:*:*:*:*:*:*:*:* cpe:2.3:a:f5:big-ip_global_traffic_manager:*:*:*:*:*:*:*:* cpe:2.3:a:f5:big-ip_link_controller:*:*:*:*:*:*:*:* cpe:2.3:a:f5:big-ip_local_traffic_manager:*:*:*:*:*:*:*:* cpe:2.3:a:f5:big-ip_policy_enforcement_manager:*:*:*:*:*:*:*:* cpe:2.3:a:f5:big-ip_ssl_orchestrator:*:*:*:*:*:*:*:* cpe:2.3:a:f5:big-ip_webaccelerator:*:*:*:*:*:*:*:* cpe:2.3:a:f5:big-ip_websafe:*:*:*:*:*:*:*:* cpe:2.3:a:f5:big-ip_access_policy_manager:*:*:*:*:*:*:*:* cpe:2.3:a:f5:big-ip_advanced_firewall_manager:*:*:*:*:*:*:*:* cpe:2.3:a:f5:big-ip_advanced_web_application_firewall:*:*:*:*:*:*:*:* cpe:2.3:a:f5:big-ip_analytics:*:*:*:*:*:*:*:* cpe:2.3:a:f5:big-ip_application_acceleration_manager:*:*:*:*:*:*:*:* cpe:2.3:a:f5:big-ip_application_security_manager:*:*:*:*:*:*:*:* cpe:2.3:a:f5:big-ip_application_visibility_and_reporting:*:*:*:*:*:*:*:* cpe:2.3:a:f5:big-ip_automation_toolchain:*:*:*:*:*:*:*:* cpe:2.3:a:f5:big-ip_carrier-grade_nat:*:*:*:*:*:*:*:* cpe:2.3:a:f5:big-ip_container_ingress_services:*:*:*:*:*:*:*:* cpe:2.3:a:f5:big-ip_ddos_hybrid_defender:*:*:*:*:*:*:*:* cpe:2.3:a:f5:big-ip_domain_name_system:*:*:*:*:*:*:*:* cpe:2.3:a:f5:big-ip_edge_gateway:*:*:*:*:*:*:*:* cpe:2.3:a:f5:big-ip_fraud_protection_service:*:*:*:*:*:*:*:* cpe:2.3:a:f5:big-ip_global_traffic_manager:*:*:*:*:*:*:*:* cpe:2.3:a:f5:big-ip_link_controller:*:*:*:*:*:*:*:* cpe:2.3:a:f5:big-ip_local_traffic_manager:*:*:*:*:*:*:*:* cpe:2.3:a:f5:big-ip_policy_enforcement_manager:*:*:*:*:*:*:*:* cpe:2.3:a:f5:big-ip_ssl_orchestrator:*:*:*:*:*:*:*:* cpe:2.3:a:f5:big-ip_webaccelerator:*:*:*:*:*:*:*:* cpe:2.3:a:f5:big-ip_websafe:*:*:*:*:*:*:*:* cpe:2.3:a:f5:big-ip_access_policy_manager:*:*:*:*:*:*:*:* cpe:2.3:a:f5:big-ip_access_policy_manager:*:*:*:*:*:*:*:* cpe:2.3:a:f5:big-ip_advanced_firewall_manager:*:*:*:*:*:*:*:* cpe:2.3:a:f5:big-ip_advanced_firewall_manager:*:*:*:*:*:*:*:* cpe:2.3:a:f5:big-ip_advanced_web_application_firewall:*:*:*:*:*:*:*:* cpe:2.3:a:f5:big-ip_advanced_web_application_firewall:*:*:*:*:*:*:*:* cpe:2.3:a:f5:big-ip_analytics:*:*:*:*:*:*:*:* cpe:2.3:a:f5:big-ip_analytics:*:*:*:*:*:*:*:*
Summary: F5 BIG-IP APM contains a stack-based buffer overflow vulnerability that could allow a threat actor to achieve remote code execution.
Remediation: Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
Exploit info: No exploit-tagged NVD references in our cache; see the CISA KEV link below.

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Information is aggregated from multiple authoritative sources for convenience; verify with NVD and vendors before operational decisions.