CVE-2026-13321 — Vulnerability intelligence

isc — bind

Published: 2026-07-22T15:16:52.200

CVSS

8.6

CISA KEV

Not listed; not proof of no exploitation

Original source text (not a translation)

The BIND resolver accepts validly-signed NSEC records where the "Next Domain Name" field points outside the signer's zone. This issue affects BIND 9 versions 9.11.0 through 9.18.50, 9.20.0 through 9.20.24, 9.21.0 through 9.21.23, 9.11.3-S1 through 9.18.50-S1, and 9.20.9-S1 through 9.20.24-S1.

Sources

• CVE-2026-13321
• Product
• Product
• Vendor Advisory