High severity7.5NVD Advisory· Published May 13, 2026· Updated May 13, 2026

CVE-2026-42920

Description

When a Client SSL profile is configured with Allow Dynamic Record Sizing on a UDP virtual server, undisclosed traffic can cause the Traffic Management Microkernel (TMM) to terminate. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.

Patches

Vulnerability mechanics

References

my.f5.com/manage/s/article/K000160901nvd

News mentions

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