Vulnerability Monitor

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CVE-2026-42781


When embedded Packet Velocity Acceleration (ePVA) acceleration is configured, undisclosed local ethernet traffic can cause an increase in ePVA and Traffic Management Microkernel (TMM) resource utilization.  Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.


Security Impact Summary

This vulnerability carries a MEDIUM severity rating with a CVSS v3.1 score of 6.5, indicating it requires adjacent network access with relatively low complexity without requiring user interaction and does not require pre-existing privileges . The vulnerability impacts and availability (service disruption) for affected systems. Impacting 21 products from f5, from f5, from f5 and 18 others, organizations running these solutions should prioritize assessment and patching.

Historical Context

Reported in 2026, this vulnerability emerged during an era marked by increased sophistication in supply chain attacks, cloud infrastructure vulnerabilities, and software-as-a-service (SaaS) security challenges. Security practices during this period emphasized zero-trust architectures, container security, and API protection.


Published

2026-05-13T16:16:48.447

Last Modified

2026-06-23T13:58:36.387

Status

Analyzed

Source

[email protected]

Severity

CVSSv3.1: 6.5 (MEDIUM)

Weaknesses
  • Type: Secondary
    CWE-835

Affected Vendors & Products
Type Vendor Product Version/Range Vulnerable?
Application f5 big-ip_access_policy_manager 21.0.0 Yes
Application f5 big-ip_advanced_firewall_manager 21.0.0 Yes
Application f5 big-ip_advanced_web_application_firewall 21.0.0 Yes
Application f5 big-ip_analytics 21.0.0 Yes
Application f5 big-ip_application_acceleration_manager 21.0.0 Yes
Application f5 big-ip_application_security_manager 21.0.0 Yes
Application f5 big-ip_application_visibility_and_reporting 21.0.0 Yes
Application f5 big-ip_automation_toolchain 21.0.0 Yes
Application f5 big-ip_carrier-grade_nat 21.0.0 Yes
Application f5 big-ip_container_ingress_services 21.0.0 Yes
Application f5 big-ip_ddos_hybrid_defender 21.0.0 Yes
Application f5 big-ip_domain_name_system 21.0.0 Yes
Application f5 big-ip_edge_gateway 21.0.0 Yes
Application f5 big-ip_fraud_protection_service 21.0.0 Yes
Application f5 big-ip_global_traffic_manager 21.0.0 Yes
Application f5 big-ip_link_controller 21.0.0 Yes
Application f5 big-ip_local_traffic_manager 21.0.0 Yes
Application f5 big-ip_policy_enforcement_manager 21.0.0 Yes
Application f5 big-ip_ssl_orchestrator 21.0.0 Yes
Application f5 big-ip_webaccelerator 21.0.0 Yes
Application f5 big-ip_websafe 21.0.0 Yes
Application f5 big-ip_access_policy_manager ≤ 17.1.3 Yes
Application f5 big-ip_access_policy_manager ≤ 17.5.1 Yes
Application f5 big-ip_advanced_firewall_manager ≤ 17.1.3 Yes
Application f5 big-ip_advanced_firewall_manager ≤ 17.5.1 Yes
Application f5 big-ip_advanced_web_application_firewall ≤ 17.1.3 Yes
Application f5 big-ip_advanced_web_application_firewall ≤ 17.5.1 Yes
Application f5 big-ip_analytics ≤ 17.1.3 Yes
Application f5 big-ip_analytics ≤ 17.5.1 Yes
Application f5 big-ip_application_acceleration_manager ≤ 17.1.3 Yes
Application f5 big-ip_application_acceleration_manager ≤ 17.5.1 Yes
Application f5 big-ip_application_security_manager ≤ 17.1.3 Yes
Application f5 big-ip_application_security_manager ≤ 17.5.1 Yes
Application f5 big-ip_application_visibility_and_reporting ≤ 17.1.3 Yes
Application f5 big-ip_application_visibility_and_reporting ≤ 17.5.1 Yes
Application f5 big-ip_automation_toolchain ≤ 17.1.3 Yes
Application f5 big-ip_automation_toolchain ≤ 17.5.1 Yes
Application f5 big-ip_carrier-grade_nat ≤ 17.1.3 Yes
Application f5 big-ip_carrier-grade_nat ≤ 17.5.1 Yes
Application f5 big-ip_container_ingress_services ≤ 17.1.3 Yes
Application f5 big-ip_container_ingress_services ≤ 17.5.1 Yes
Application f5 big-ip_ddos_hybrid_defender ≤ 17.1.3 Yes
Application f5 big-ip_ddos_hybrid_defender ≤ 17.5.1 Yes
Application f5 big-ip_domain_name_system ≤ 17.1.3 Yes
Application f5 big-ip_domain_name_system ≤ 17.5.1 Yes
Application f5 big-ip_edge_gateway ≤ 17.1.3 Yes
Application f5 big-ip_edge_gateway ≤ 17.5.1 Yes
Application f5 big-ip_fraud_protection_service ≤ 17.1.3 Yes
Application f5 big-ip_fraud_protection_service ≤ 17.5.1 Yes
Application f5 big-ip_global_traffic_manager ≤ 17.1.3 Yes
Application f5 big-ip_global_traffic_manager ≤ 17.5.1 Yes
Application f5 big-ip_link_controller ≤ 17.1.3 Yes
Application f5 big-ip_link_controller ≤ 17.5.1 Yes
Application f5 big-ip_local_traffic_manager ≤ 17.1.3 Yes
Application f5 big-ip_local_traffic_manager ≤ 17.5.1 Yes
Application f5 big-ip_policy_enforcement_manager ≤ 17.1.3 Yes
Application f5 big-ip_policy_enforcement_manager ≤ 17.5.1 Yes
Application f5 big-ip_ssl_orchestrator ≤ 17.1.3 Yes
Application f5 big-ip_ssl_orchestrator ≤ 17.5.1 Yes
Application f5 big-ip_webaccelerator ≤ 17.1.3 Yes
Application f5 big-ip_webaccelerator ≤ 17.5.1 Yes
Application f5 big-ip_websafe ≤ 17.1.3 Yes
Application f5 big-ip_websafe ≤ 17.5.1 Yes

References

How SecUtils Interprets This CVE

SecUtils normalizes and enriches National Vulnerability Database (NVD) records by standardizing vendor and product identifiers, aggregating vulnerability metadata from both NVD and MITRE sources, and providing structured context for security teams. For f5's affected products, we extract Common Platform Enumeration (CPE) data, Common Weakness Enumeration (CWE) classifications, CVSS severity metrics, and reference data to enable rapid vulnerability prioritization and asset correlation. This record contains no exploit code, proof-of-concept instructions, or attack methodologies—only defensive intelligence necessary for patch management, risk assessment, and security operations.