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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.

PUBLISHED Reserved 2026-04-30 | Published 2026-05-13 | Updated 2026-05-13 | Assigner f5




MEDIUM: 6.5CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

HIGH: 7.1CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

Problem types

CWE-835 Loop with Unreachable Exit Condition ('Infinite Loop')

Product status

Default status
unknown

21.1.0 (custom) before *
unaffected

21.0.0 (custom) before 21.0.0.1
affected

17.5.0 (custom) before 17.5.1.4
affected

17.1.0 (custom) before 17.1.3.1
affected

16.1.0 (custom) before *
unaffected

Credits

F5 finder

References

my.f5.com/manage/s/article/K000160862 vendor-advisory patch

cve.org (CVE-2026-42781)

nvd.nist.gov (CVE-2026-42781)

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