CVE-2026-3592

EUVD-2026-31106
BIND resolvers are vulnerable to an amplified resource consumption/exhaustion attack.  If a victim resolver makes a query to a specially crafted zone, the resolver will consume disproportionate resources.
This issue affects BIND 9 versions 9.11.0 through 9.16.50, 9.18.0 through 9.18.48, 9.20.0 through 9.20.22, 9.21.0 through 9.21.21, 9.11.3-S1 through 9.16.50-S1, 9.18.11-S1 through 9.18.48-S1, and 9.20.9-S1 through 9.20.22-S1.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
5.3 MEDIUM
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Base Score
CVSS 3.x
EPSS Score
Percentile: 33.74%
Affected Products (NVD)
VendorProductVersion
iscbind
9.11.0 ≤
𝑥
≤ 9.16.50
iscbind
9.18.0 ≤
𝑥
< 9.18.49
iscbind
9.20.0 ≤
𝑥
< 9.20.23
iscbind
9.21.0 ≤
𝑥
< 9.21.22
𝑥
= Vulnerable software versions
Debian logo
Debian Releases
Debian Product
Codename
bind9
bookworm
vulnerable
bookworm (security)
1:9.18.49-1~deb12u2
fixed
bullseye
vulnerable
bullseye (security)
1:9.16.50-1~deb11u6
fixed
forky
1:9.20.26-1
fixed
sid
1:9.20.26-1
fixed
trixie
1:9.20.23-1~deb13u1
fixed
trixie (security)
1:9.20.26-1~deb13u1
fixed
Ubuntu logo
Ubuntu Releases
Ubuntu Product
Codename
bind9
bionic
needed
focal
needed
jammy
Fixed 1:9.18.39-0ubuntu0.22.04.4
released
noble
Fixed 1:9.18.39-0ubuntu0.24.04.5
released
questing
Fixed 1:9.20.11-1ubuntu2.4
released
resolute
Fixed 1:9.20.18-1ubuntu2.1
released
trusty
not-affected
xenial
not-affected
isc-dhcp
bionic
needs-triage
focal
not-affected
jammy
not-affected
noble
needs-triage
questing
ignored
resolute
needs-triage
trusty
not-affected
xenial
not-affected
bind9-libs
focal
needs-triage
jammy
needs-triage
noble
dne
questing
dne
resolute
dne
openSUSE logo
openSUSE / SLES Releases
openSUSE Product
Release
bind
suse enterprise sap 15 SP7
9.20.23-150700.3.25.1
fixed
suse enterprise server 12 SP5
9.11.22-3.71.1
fixed
suse enterprise server 15 SP4
9.16.50-150400.5.62.1
fixed
suse enterprise server 15 SP5
9.16.50-150500.8.38.1
fixed
suse enterprise server 15 SP6
9.18.49-150600.3.26.1
fixed
suse enterprise server 15 SP7
9.20.23-150700.3.25.1
fixed
bind-chrootenv
suse enterprise server 12 SP5
9.11.22-3.71.1
fixed
bind-devel
suse enterprise server 12 SP5
9.11.22-3.71.1
fixed
bind-doc
suse enterprise sap 15 SP7
9.20.23-150700.3.25.1
fixed
suse enterprise server 12 SP5
9.11.22-3.71.1
fixed
suse enterprise server 15 SP4
9.16.50-150400.5.62.1
fixed
suse enterprise server 15 SP5
9.16.50-150500.8.38.1
fixed
suse enterprise server 15 SP6
9.18.49-150600.3.26.1
fixed
suse enterprise server 15 SP7
9.20.23-150700.3.25.1
fixed
bind-utils
suse enterprise desktop 15 SP7
9.20.23-150700.3.25.1
fixed
suse enterprise sap 15 SP7
9.20.23-150700.3.25.1
fixed
suse enterprise server 12 SP5
9.11.22-3.71.1
fixed
suse enterprise server 15 SP4
9.16.50-150400.5.62.1
fixed
suse enterprise server 15 SP5
9.16.50-150500.8.38.1
fixed
suse enterprise server 15 SP6
9.18.49-150600.3.26.1
fixed
suse enterprise server 15 SP7
9.20.23-150700.3.25.1
fixed
libbind9-161
suse enterprise server 12 SP5
9.11.22-3.71.1
fixed
libdns1110
suse enterprise server 12 SP5
9.11.22-3.71.1
fixed
libdns1605
suse enterprise desktop 15 SP7
9.16.6-150300.22.59.1
fixed
suse enterprise sap 15 SP7
9.16.6-150300.22.59.1
fixed
suse enterprise server 15 SP6
9.16.6-150300.22.59.1
fixed
suse enterprise server 15 SP7
9.16.6-150300.22.59.1
fixed
libirs-devel
suse enterprise desktop 15 SP7
9.16.6-150300.22.59.1
fixed
suse enterprise sap 15 SP7
9.16.6-150300.22.59.1
fixed
suse enterprise server 15 SP6
9.16.6-150300.22.59.1
fixed
suse enterprise server 15 SP7
9.16.6-150300.22.59.1
fixed
libirs1601
suse enterprise desktop 15 SP7
9.16.6-150300.22.59.1
fixed
suse enterprise sap 15 SP7
9.16.6-150300.22.59.1
fixed
suse enterprise server 15 SP6
9.16.6-150300.22.59.1
fixed
suse enterprise server 15 SP7
9.16.6-150300.22.59.1
fixed
libirs161
suse enterprise server 12 SP5
9.11.22-3.71.1
fixed
libisc1107
suse enterprise server 12 SP5
9.11.22-3.71.1
fixed
libisc1107-32bit
suse enterprise server 12 SP5
9.11.22-3.71.1
fixed
libisc1606
suse enterprise desktop 15 SP7
9.16.6-150300.22.59.1
fixed
suse enterprise sap 15 SP7
9.16.6-150300.22.59.1
fixed
suse enterprise server 15 SP6
9.16.6-150300.22.59.1
fixed
suse enterprise server 15 SP7
9.16.6-150300.22.59.1
fixed
libisccc161
suse enterprise server 12 SP5
9.11.22-3.71.1
fixed
libisccfg1600
suse enterprise desktop 15 SP7
9.16.6-150300.22.59.1
fixed
suse enterprise sap 15 SP7
9.16.6-150300.22.59.1
fixed
suse enterprise server 15 SP6
9.16.6-150300.22.59.1
fixed
suse enterprise server 15 SP7
9.16.6-150300.22.59.1
fixed
libisccfg163
suse enterprise server 12 SP5
9.11.22-3.71.1
fixed
liblwres161
suse enterprise server 12 SP5
9.11.22-3.71.1
fixed
python-bind
suse enterprise server 12 SP5
9.11.22-3.71.1
fixed
python3-bind
suse enterprise server 15 SP4
9.16.50-150400.5.62.1
fixed
suse enterprise server 15 SP5
9.16.50-150500.8.38.1
fixed
Amazon Linux logo
Amazon Linux Releases
Amazon Package
Release
bind
Amazon Linux 2
32:9.11.4-26.P2.amzn2.13.16
fixed
Amazon Linux 2023
32:9.18.49-1.amzn2023.0.1
fixed
bind-chroot
Amazon Linux 2
32:9.11.4-26.P2.amzn2.13.16
fixed
Amazon Linux 2023
32:9.18.49-1.amzn2023.0.1
fixed
bind-debuginfo
Amazon Linux 2
32:9.11.4-26.P2.amzn2.13.16
fixed
Amazon Linux 2023
32:9.18.49-1.amzn2023.0.1
fixed
bind-debugsource
Amazon Linux 2023
32:9.18.49-1.amzn2023.0.1
fixed
bind-devel
Amazon Linux 2
32:9.11.4-26.P2.amzn2.13.16
fixed
Amazon Linux 2023
32:9.18.49-1.amzn2023.0.1
fixed
bind-dnssec-utils
Amazon Linux 2023
32:9.18.49-1.amzn2023.0.1
fixed
bind-dnssec-utils-debuginfo
Amazon Linux 2023
32:9.18.49-1.amzn2023.0.1
fixed
bind-doc
Amazon Linux 2023
32:9.18.49-1.amzn2023.0.1
fixed
bind-export-devel
Amazon Linux 2
32:9.11.4-26.P2.amzn2.13.16
fixed
bind-export-libs
Amazon Linux 2
32:9.11.4-26.P2.amzn2.13.16
fixed
bind-libs
Amazon Linux 2
32:9.11.4-26.P2.amzn2.13.16
fixed
Amazon Linux 2023
32:9.18.49-1.amzn2023.0.1
fixed
bind-libs-debuginfo
Amazon Linux 2023
32:9.18.49-1.amzn2023.0.1
fixed
bind-libs-lite
Amazon Linux 2
32:9.11.4-26.P2.amzn2.13.16
fixed
bind-license
Amazon Linux 2
32:9.11.4-26.P2.amzn2.13.16
fixed
Amazon Linux 2023
32:9.18.49-1.amzn2023.0.1
fixed
bind-lite-devel
Amazon Linux 2
32:9.11.4-26.P2.amzn2.13.16
fixed
bind-pkcs11
Amazon Linux 2
32:9.11.4-26.P2.amzn2.13.16
fixed
bind-pkcs11-devel
Amazon Linux 2
32:9.11.4-26.P2.amzn2.13.16
fixed
bind-pkcs11-libs
Amazon Linux 2
32:9.11.4-26.P2.amzn2.13.16
fixed
bind-pkcs11-utils
Amazon Linux 2
32:9.11.4-26.P2.amzn2.13.16
fixed
bind-sdb
Amazon Linux 2
32:9.11.4-26.P2.amzn2.13.16
fixed
bind-sdb-chroot
Amazon Linux 2
32:9.11.4-26.P2.amzn2.13.16
fixed
bind-utils
Amazon Linux 2
32:9.11.4-26.P2.amzn2.13.16
fixed
Amazon Linux 2023
32:9.18.49-1.amzn2023.0.1
fixed
bind-utils-debuginfo
Amazon Linux 2023
32:9.18.49-1.amzn2023.0.1
fixed
Azure Linux logo
Azure Linux Releases
Azure Package
Release
bind
Azure Linux 3.0
0:9.20.23-1.azl3
fixed
Common Weakness Enumeration
Vulnerability Media Exposure
References
https://downloads.isc.org/isc/bind9/9.18.49
https://downloads.isc.org/isc/bind9/9.20.23
https://downloads.isc.org/isc/bind9/9.21.22
https://kb.isc.org/docs/cve-2026-3592