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OpenAdvisories
High · 7.5 CVE-2026-42920 EUVD-2026-30004GHSA-xgx2-84j2-cx9m

BIG-IP DTLS Vulnerability

Published May 13, 2026 · Updated May 13, 2026 · Assigned by f5

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.

Affected products

VendorProductAffectedFixed
F5 BIG-IP 21.0.0 – < 21.0.0.1, 17.5.0 – < 17.5.1.4, 17.1.0 – < 17.1.3.1, 16.1.0 21.0.0.1

Advisories 2

References