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CVE-2025-53856.

Source-reported disclosure and enrichment record.

SEVERITY / CVSSHIGH / 8.7CVSS 4.0 · f5sirt@f5.com
EXPLOITATION STATUSNot listed in the cached KEV catalogThis does not establish absence of exploitation.
RECORD STATUSAnalyzedModified Oct 08, 2026

Disclosure summary

When a virtual server, network address translation (NAT) object, or secure network address translation (SNAT) object uses the embedded Packet Velocity Acceleration (ePVA) feature, undisclosed traffic can cause the Traffic Management Microkernel (TMM) to terminate. To determine which BIG-IP platforms have an ePVA chip refer to K12837: Overview of the ePVA feature https://my.f5.com/manage/s/article/K12837 . Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.

Source-reported weakness categories

CWE-705, NVD-CWE-noinfo

Source-specific records & product guidance

Sources retain their own attribution and scoring. Follow the original record to confirm affected versions, fixed releases, and configuration conditions.

NIST National Vulnerability Database · NVD-CVE-2025-53856

Open original source · Updated Oct 08, 2026

Only CPE matches marked vulnerable=true are indexed. AND/OR platform conditions must be checked in the original NVD record.

VendorProduct / associationVersion / bounds
f5big-ip_access_policy_manager* {"versionStartIncluding":"17.5.0","versionEndIncluding":"17.5.1"}
f5big-ip_advanced_firewall_manager* {"versionStartIncluding":"17.5.0","versionEndIncluding":"17.5.1"}
f5big-ip_advanced_web_application_firewall* {"versionStartIncluding":"17.5.0","versionEndIncluding":"17.5.1"}
f5big-ip_analytics* {"versionStartIncluding":"17.5.0","versionEndIncluding":"17.5.1"}
f5big-ip_application_acceleration_manager* {"versionStartIncluding":"17.5.0","versionEndIncluding":"17.5.1"}
f5big-ip_application_security_manager* {"versionStartIncluding":"17.5.0","versionEndIncluding":"17.5.1"}
f5big-ip_application_visibility_and_reporting* {"versionStartIncluding":"17.5.0","versionEndIncluding":"17.5.1"}
f5big-ip_automation_toolchain* {"versionStartIncluding":"17.5.0","versionEndIncluding":"17.5.1"}
f5big-ip_carrier-grade_nat* {"versionStartIncluding":"17.5.0","versionEndIncluding":"17.5.1"}
f5big-ip_container_ingress_services* {"versionStartIncluding":"17.5.0","versionEndIncluding":"17.5.1"}
f5big-ip_ddos_hybrid_defender* {"versionStartIncluding":"17.5.0","versionEndIncluding":"17.5.1"}
f5big-ip_domain_name_system* {"versionStartIncluding":"17.5.0","versionEndIncluding":"17.5.1"}
f5big-ip_edge_gateway* {"versionStartIncluding":"17.5.0","versionEndIncluding":"17.5.1"}
f5big-ip_fraud_protection_service* {"versionStartIncluding":"17.5.0","versionEndIncluding":"17.5.1"}
f5big-ip_global_traffic_manager* {"versionStartIncluding":"17.1.0","versionEndExcluding":"17.1.3"}
f5big-ip_link_controller* {"versionStartIncluding":"17.5.0","versionEndIncluding":"17.5.1"}
f5big-ip_local_traffic_manager* {"versionStartIncluding":"17.5.0","versionEndIncluding":"17.5.1"}
f5big-ip_policy_enforcement_manager* {"versionStartIncluding":"17.5.0","versionEndIncluding":"17.5.1"}
f5big-ip_ssl_orchestrator* {"versionStartIncluding":"17.5.0","versionEndIncluding":"17.5.1"}
f5big-ip_webaccelerator* {"versionStartIncluding":"17.5.0","versionEndIncluding":"17.5.1"}
f5big-ip_websafe* {"versionStartIncluding":"17.5.0","versionEndIncluding":"17.5.1"}

Original records & references

PUBLISHED 2025-10-15T10:15:48-04:00
MODIFIED 2026-10-08T08:10:00-04:00
INGESTED 2026-10-08T12:30:43-04:00