Last Modified: Oct 19, 2026
Affected Product(s):
BIG-IP DNS, GTM, LTM
Known Affected Versions:
17.5.1.3, 17.5.1.4, 17.5.1.5, 17.5.1.6, 17.5.1.8, 17.5.1.9
Fixed In:
21.1.0, 17.5.1.10, 17.1.3.6
Opened: Dec 17, 2025 Severity: 4-Minor
AXFR zone transfer includes extra RRSIG for A/AAAA records.
Extra RRSIGs added to records that do not need RRSIG.
When delegated NS record includes multiple name servers.
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