BIG-IP FastL4 virtual server vulnerability_CVE-2026-42781

6.5 / 10

MEDIUM

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

Description

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.

Basic Information

ID CVE-2026-42781

Source f5

Published May 13, 2026 at 14:12

Affected Product

Vendor F5

Product BIG-IP

Version 21.1.0

Affected Versions F5 BIG-IP 21.0.0
F5 BIG-IP 17.5.0
F5 BIG-IP 17.1.0

CWE Classification

CWE-835

References

my.f5.com /manage/s/article/K000160862

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    "published": "2026-05-13T14:12:31.758Z",
    "modified": "2026-05-13T14:12:31.758Z",
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