Last Modified: Jun 09, 2026
Affected Product(s):
BIG-IP DNS
Known Affected Versions:
14.1.4.4, 14.1.4.5, 14.1.4.6, 14.1.5, 14.1.5.1, 14.1.5.2, 14.1.5.3, 14.1.5.4, 14.1.5.6
Opened: Dec 21, 2021 Severity: 2-Critical
The zxfrd daemon may crash with a segmentation fault during zone transfers.
Interruption of DNS zone transfers
This issue may occur under the following conditions: DNS zone transfers (AXFR or IXFR) are in progress Multiple zone updates or NOTIFY events are processed concurrently Internal memory handling failure occurs in signal handler
There is no direct workaround. However: The issue is extremely rare and not reproducible in controlled environments Services typically recover automatically after zxfrd restart
None