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CVE-2025-53856

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CVE-2025-53856

Published: Oct 15, 2025

Modified: Feb 26, 2026

PUBLISHED

CVSS v3.1

7.5

HIGH

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.

VendorProductVersions

F5

BIG-IP

affected
17.5.0 - < 17.5.1.3
affected
17.1.0 - < 17.1.3
affected
16.1.0 - < 16.1.6.1
affected
15.1.0 - < 15.1.10.8

Weaknesses (CWE)

CVSS v3.1 Details

CVSS v3.1 Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

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