CVEvulnerability

CVE-2026-42920

8.7 HIGH Published 2026-05-13 Modified 2026-10-26 Official page ↗
Status
Analyzed
Published
2026-05-13
Last modified
2026-10-26
Assigner
[email protected]
CVSS 4.0 ([email protected])
8.7 HIGH — CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
CVSS 3.1 ([email protected])
7.5 HIGH — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weaknesses
CWE-835

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 configurations

• f5 big-ip access policy manager 21.0.0 • f5 big-ip advanced firewall manager 21.0.0 • f5 big-ip advanced web application firewall 21.0.0 • f5 big-ip analytics 21.0.0 • f5 big-ip application acceleration manager 21.0.0 • f5 big-ip application security manager 21.0.0 • f5 big-ip application visibility and reporting 21.0.0 • f5 big-ip automation toolchain 21.0.0 • f5 big-ip carrier-grade nat 21.0.0 • f5 big-ip container ingress services 21.0.0 • f5 big-ip ddos hybrid defender 21.0.0 • f5 big-ip domain name system 21.0.0 • f5 big-ip edge gateway 21.0.0 • f5 big-ip fraud protection service 21.0.0 • f5 big-ip global traffic manager 21.0.0 • f5 big-ip link controller 21.0.0 • f5 big-ip local traffic manager 21.0.0 • f5 big-ip policy enforcement manager 21.0.0 • f5 big-ip ssl orchestrator 21.0.0 • f5 big-ip webaccelerator 21.0.0 • f5 big-ip websafe 21.0.0 • f5 big-ip access policy manager (>= 17.1.0 <= 17.1.3) • f5 big-ip access policy manager (>= 17.5.0 <= 17.5.1) • f5 big-ip advanced firewall manager (>= 17.1.0 <= 17.1.3) • f5 big-ip advanced firewall manager (>= 17.5.0 <= 17.5.1) • f5 big-ip advanced web application firewall (>= 17.1.0 <= 17.1.3) • f5 big-ip advanced web application firewall (>= 17.5.0 <= 17.5.1) • f5 big-ip analytics (>= 17.1.0 <= 17.1.3) • f5 big-ip analytics (>= 17.5.0 <= 17.5.1) • f5 big-ip application acceleration manager (>= 17.1.0 <= 17.1.3) • f5 big-ip application acceleration manager (>= 17.5.0 <= 17.5.1) • f5 big-ip application security manager (>= 17.1.0 <= 17.1.3) • f5 big-ip application security manager (>= 17.5.0 <= 17.5.1) • f5 big-ip application visibility and reporting (>= 17.1.0 <= 17.1.3) • f5 big-ip application visibility and reporting (>= 17.5.0 <= 17.5.1) • f5 big-ip automation toolchain (>= 17.1.0 <= 17.1.3) • f5 big-ip automation toolchain (>= 17.5.0 <= 17.5.1) • f5 big-ip carrier-grade nat (>= 17.1.0 <= 17.1.3) • f5 big-ip carrier-grade nat (>= 17.5.0 <= 17.5.1) • f5 big-ip container ingress services (>= 17.1.0 <= 17.1.3) • f5 big-ip container ingress services (>= 17.5.0 <= 17.5.1) • f5 big-ip ddos hybrid defender (>= 17.1.0 <= 17.1.3) • f5 big-ip ddos hybrid defender (>= 17.5.0 <= 17.5.1) • f5 big-ip domain name system (>= 17.1.0 <= 17.1.3) • f5 big-ip domain name system (>= 17.5.0 <= 17.5.1) • f5 big-ip edge gateway (>= 17.1.0 <= 17.1.3) • f5 big-ip edge gateway (>= 17.5.0 <= 17.5.1) • f5 big-ip fraud protection service (>= 17.1.0 <= 17.1.3) • f5 big-ip fraud protection service (>= 17.5.0 <= 17.5.1) • f5 big-ip global traffic manager (>= 17.1.0 <= 17.1.3) • f5 big-ip global traffic manager (>= 17.5.0 <= 17.5.1) • f5 big-ip link controller (>= 17.1.0 <= 17.1.3) • f5 big-ip link controller (>= 17.5.0 <= 17.5.1) • f5 big-ip local traffic manager (>= 17.1.0 <= 17.1.3) • f5 big-ip local traffic manager (>= 17.5.0 <= 17.5.1) • f5 big-ip policy enforcement manager (>= 17.1.0 <= 17.1.3) • f5 big-ip policy enforcement manager (>= 17.5.0 <= 17.5.1) • f5 big-ip ssl orchestrator (>= 17.1.0 <= 17.1.3) • f5 big-ip ssl orchestrator (>= 17.5.0 <= 17.5.1) • f5 big-ip webaccelerator (>= 17.1.0 <= 17.1.3) … and 24 more

Related

Weakness · CWE (1)

  • CWE-835 Loop with Unreachable Exit Condition weakness

References