CVE WatchOct 8, 2026

CVE-2025-53856

When a virtual server, network address translation (NAT) object, or secure network address translation (SNAT) object uses the embedded Packe

CVSS

7.5

High

EPSS

0.3%

p28

KEV

—

Exploit Today

0-100

Published: Oct 15, 2025 · Last modified: Oct 8, 2026 · CWE-705

EPSS · 30d

0.3%EPSS · 30 days0.3%

2026-10-042026-10-31

Technical description

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.

Official references

my.f5.comhttps://my.f5.com/manage/s/article/K000156707

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