All vulnerabilities
CVE-2026-96888

BIND 9: Named may terminate unexpectedly when a redirect zone is used with strict QNAME minimization

ISC BIND 9
Open in ThreatlineRecord JSON
CVSS
7.5High
ExploitationNo known exploitationNot in CISA KEV, which does not prove it is unexploitedCISA KEV
Exploit odds (EPSS)0.46%Chance of exploitation activity in the next 30 days, higher than 39% of CVEs. Scored 23 Oct 2026FIRST EPSS
Fixed inNone listedNo source names a fixed version. Check the vendor advisory below
Published21 Oct 2026Updated 21 Oct 2026CVE List

What fixes it

No source in this snapshot names a fixed version. The vendor advisories under References are the place to check.

Description

A BIND resolver that is configured with both a "redirect" zone and "qname-minimization strict" may abort with an assertion failure while processing the redirect. This issue affects BIND 9 versions 9.16.0 through 9.18.50, 9.20.0 through 9.20.29, 9.21.0 through 9.21.26, 9.16.8-S1 through 9.18.50-S1, and 9.20.9-S1 through 9.20.29-S1.

Text from CVE List

Affected versions 5

  • BIND 9affected: 9.16.0 through 9.18.50CVE List
  • BIND 9affected: 9.20.0 through 9.20.29CVE List
  • BIND 9affected: 9.21.0 through 9.21.26CVE List
  • BIND 9affected: 9.16.8-S1 through 9.18.50-S1CVE List
  • BIND 9affected: 9.20.9-S1 through 9.20.29-S1CVE List

References 3