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bind: bind9: Unexpected exit with NSEC and NSEC3 both present

🗓️ 17 Aug 2026 04:00:15Reported by RedHatType 
redhat
 redhat
🔗 access.redhat.com👁 5 Views

BIND9 crashes with an assertion error when validating DNSSEC NSEC/NSEC3 records with mismatched RRSIG coverage.

Related
Packages
Refs
OSOS VersionArchitecturePackagePackage VersionFilename
Red Hat Enterprise Linux9.6aarch64bind32:9.16.23-31.el9_6.4bind-32:9.16.23-31.el9_6.4.aarch64.rpm
Red Hat Enterprise Linux9.6ppc64lebind32:9.16.23-31.el9_6.4bind-32:9.16.23-31.el9_6.4.ppc64le.rpm
Red Hat Enterprise Linux9.6s390xbind32:9.16.23-31.el9_6.4bind-32:9.16.23-31.el9_6.4.s390x.rpm
Red Hat Enterprise Linux9.6x86_64bind32:9.16.23-31.el9_6.4bind-32:9.16.23-31.el9_6.4.x86_64.rpm
Red Hat Enterprise Linux9.6aarch64bind-libs32:9.16.23-31.el9_6.4bind-libs-32:9.16.23-31.el9_6.4.aarch64.rpm
Red Hat Enterprise Linux9.6i686bind-libs32:9.16.23-31.el9_6.4bind-libs-32:9.16.23-31.el9_6.4.i686.rpm
Red Hat Enterprise Linux9.6ppc64lebind-libs32:9.16.23-31.el9_6.4bind-libs-32:9.16.23-31.el9_6.4.ppc64le.rpm
Red Hat Enterprise Linux9.6s390xbind-libs32:9.16.23-31.el9_6.4bind-libs-32:9.16.23-31.el9_6.4.s390x.rpm
Red Hat Enterprise Linux9.6x86_64bind-libs32:9.16.23-31.el9_6.4bind-libs-32:9.16.23-31.el9_6.4.x86_64.rpm

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17 Aug 2026 10:08Current
5.3Medium risk
Vulners AI Score5.3
CVSS 3.17.5
EPSS0.00509
SSVC
5