Bug ID 2489301: Big3d may run oom if Big3d.Ssl.SessionSizeMultiplier is set to 15 or over

Last Modified: Oct 10, 2026

Affected Product(s):
BIG-IP DNS(all modules)

Known Affected Versions:
17.1.3.4, 17.1.3.5, 17.5.1.9, 21.1.0, 21.1.0.1, 21.1.0.2

Opened: Aug 28, 2026

Severity: 3-Major

Symptoms

Big3d memory usage increases, and Big3d may eventually run out of memory and core

Impact

High Big3d memory usage, the daemon may eventually crash

Conditions

The Big3d.Ssl.SessionSizeMultiplier db variable is set to 15 or larger

Workaround

Keep Big3d.Ssl.SessionSizeMultiplier under 15

Fix Information

None

Behavior Change

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips