CVE-2025-8677

Resource exhaustion via malformed DNSKEY handling

CVE-2025-8677 is fixed in 41 products on 1 platform, first by bind9 1:9.18.30-0ubuntu0.20.04.2+esm1, released October 21, 2025. It is not reported as exploited. Patch Radar priority: High.

High
CVSS
8.6
Important
Exploitation
None reported
No vendor assessment
CISA KEV
Not listed
Not in the Known Exploited Vulnerabilities catalog
EPSS
0.1074
95th percentile

Querying for records within a specially crafted zone containing certainmalformed DNSKEY records can lead to CPU exhaustion.This issue affects BIND 9 versions 9.18.0 through 9.18.39, 9.20.0 through9.20.13, 9.21.0 through 9.21.12, 9.18.11-S1 through 9.18.39-S1, and9.20.9-S1 through 9.20.13-S1.

Where it's fixed

ProductFixed inFixReleased
Linux
bind · RHEL 10 9.18.33-10.el10_1.2 RHSA-2025:21034 Oct 22, 2025
bind · RHEL 9 32:9.16.23-40.el9_8.1 RHSA-2026:18786 May 27, 2026
bind · almalinux 10 32:9.18.33-10.el10_1.2 ALSA-2025:21034 Nov 11, 2025
bind · almalinux 9 32:9.16.23-40.el9_8.1 ALSA-2026:18786 May 19, 2026
bind · amzn 2023 32:9.18.33-1.amzn2023.0.4 ALAS2023-2025-1255 Nov 5, 2025
bind · ol 10 32:9.18.33-4.0.1.el10_0.2 ELSA-2025-19912 Nov 6, 2025
bind · ol 9 32:9.16.23-40.0.1.el9_8.1 ELSA-2026-18786 Jun 12, 2026
bind · opensuse-leap 15.6 9.18.33-150600.3.18.1 SUSE-SU-2025:4110-1 Nov 14, 2025
bind · opensuse-leap 16.0 9.20.15-160000.1.1 OPENSUSE-SU-2026:20039-1 Jan 15, 2026
bind · rocky 10 2:9.18.33-10.el10_1.2 RLSA-2025:21034 Nov 21, 2025
bind · rocky 9 2:9.16.23-40.el9_8.1 RLSA-2026:18786 May 28, 2026
bind · sles 15.6 9.18.33-150600.3.18.1 SUSE-SU-2025:4110-1 Nov 14, 2025
bind · sles 15.7 9.20.15-150700.3.12.1 SUSE-SU-2025:3903-1 Oct 31, 2025
bind · sles 16.0 9.20.15-160000.1.1 SUSE-SU-2026:20085-1 Jan 15, 2026
bind-chroot · RHEL 9 32:9.16.23-40.el9_8.1 RHSA-2026:18786 May 27, 2026
bind-chroot · almalinux 10 32:9.18.33-10.el10_1.2 ALSA-2025:21034 Nov 11, 2025
bind-chroot · almalinux 9 32:9.16.23-40.el9_8.1 ALSA-2026:18786 May 19, 2026
bind-chroot · amzn 2023 32:9.18.33-1.amzn2023.0.4 ALAS2023-2025-1255 Nov 5, 2025
bind-chroot · ol 10 32:9.18.33-4.0.1.el10_0.2 ELSA-2025-19912 Nov 6, 2025
bind-chroot · ol 9 32:9.16.23-40.0.1.el9_8.1 ELSA-2026-18786 Jun 12, 2026
bind-debuginfo · amzn 2023 32:9.18.33-1.amzn2023.0.4 ALAS2023-2025-1255 Nov 5, 2025
bind-debugsource · amzn 2023 32:9.18.33-1.amzn2023.0.4 ALAS2023-2025-1255 Nov 5, 2025
bind-devel · RHEL 9 32:9.16.23-40.el9_8.1 RHSA-2026:18786 May 27, 2026
bind-devel · almalinux 10 32:9.18.33-10.el10_1.2 ALSA-2025:21034 Nov 11, 2025
bind-devel · almalinux 9 32:9.16.23-40.el9_8.1 ALSA-2026:18786 May 19, 2026
bind-devel · amzn 2023 32:9.18.33-1.amzn2023.0.4 ALAS2023-2025-1255 Nov 5, 2025
bind-devel · ol 10 32:9.18.33-4.0.1.el10_0.2 ELSA-2025-19912 Nov 6, 2025
bind-devel · ol 9 32:9.16.23-40.0.1.el9_8.1 ELSA-2026-18786 Jun 12, 2026
bind-dnssec-doc · RHEL 9 32:9.16.23-40.el9_8.1 RHSA-2026:18786 May 27, 2026
bind-dnssec-doc · almalinux 9 32:9.16.23-40.el9_8.1 ALSA-2026:18786 May 19, 2026
bind-dnssec-doc · ol 9 32:9.16.23-40.0.1.el9_8.1 ELSA-2026-18786 Jun 12, 2026
bind-dnssec-utils · RHEL 9 32:9.16.23-40.el9_8.1 RHSA-2026:18786 May 27, 2026
bind-dnssec-utils · almalinux 10 32:9.18.33-10.el10_1.2 ALSA-2025:21034 Nov 11, 2025
bind-dnssec-utils · almalinux 9 32:9.16.23-40.el9_8.1 ALSA-2026:18786 May 19, 2026
bind-dnssec-utils · amzn 2023 32:9.18.33-1.amzn2023.0.4 ALAS2023-2025-1255 Nov 5, 2025
bind-dnssec-utils · ol 10 32:9.18.33-4.0.1.el10_0.2 ELSA-2025-19912 Nov 6, 2025
bind-dnssec-utils · ol 9 32:9.16.23-40.0.1.el9_8.1 ELSA-2026-18786 Jun 12, 2026
bind-dnssec-utils-debuginfo · amzn 2023 32:9.18.33-1.amzn2023.0.4 ALAS2023-2025-1255 Nov 5, 2025
bind-doc · RHEL 9 32:9.16.23-40.el9_8.1 RHSA-2026:18786 May 27, 2026
bind-doc · almalinux 10 32:9.18.33-10.el10_1.2 ALSA-2025:21034 Nov 11, 2025
bind-doc · almalinux 9 32:9.16.23-40.el9_8.1 ALSA-2026:18786 May 19, 2026
bind-doc · amzn 2023 32:9.18.33-1.amzn2023.0.4 ALAS2023-2025-1255 Nov 5, 2025
bind-doc · ol 10 32:9.18.33-4.0.1.el10_0.2 ELSA-2025-19912 Nov 6, 2025
bind-doc · ol 9 32:9.16.23-40.0.1.el9_8.1 ELSA-2026-18786 Jun 12, 2026
bind-libs · RHEL 9 32:9.16.23-40.el9_8.1 RHSA-2026:18786 May 27, 2026
bind-libs · almalinux 10 32:9.18.33-10.el10_1.2 ALSA-2025:21034 Nov 11, 2025
bind-libs · almalinux 9 32:9.16.23-40.el9_8.1 ALSA-2026:18786 May 19, 2026
bind-libs · amzn 2023 32:9.18.33-1.amzn2023.0.4 ALAS2023-2025-1255 Nov 5, 2025
bind-libs · ol 10 32:9.18.33-4.0.1.el10_0.2 ELSA-2025-19912 Nov 6, 2025
bind-libs · ol 9 32:9.16.23-40.0.1.el9_8.1 ELSA-2026-18786 Jun 12, 2026
bind-libs-debuginfo · amzn 2023 32:9.18.33-1.amzn2023.0.4 ALAS2023-2025-1255 Nov 5, 2025
bind-license · RHEL 9 32:9.16.23-40.el9_8.1 RHSA-2026:18786 May 27, 2026
bind-license · almalinux 10 32:9.18.33-10.el10_1.2 ALSA-2025:21034 Nov 11, 2025
bind-license · almalinux 9 32:9.16.23-40.el9_8.1 ALSA-2026:18786 May 19, 2026
bind-license · amzn 2023 32:9.18.33-1.amzn2023.0.4 ALAS2023-2025-1255 Nov 5, 2025
bind-license · ol 10 32:9.18.33-4.0.1.el10_0.2 ELSA-2025-19912 Nov 6, 2025
bind-license · ol 9 32:9.16.23-40.0.1.el9_8.1 ELSA-2026-18786 Jun 12, 2026
bind-utils · RHEL 9 32:9.16.23-40.el9_8.1 RHSA-2026:18786 May 27, 2026
bind-utils · almalinux 10 32:9.18.33-10.el10_1.2 ALSA-2025:21034 Nov 11, 2025
bind-utils · almalinux 9 32:9.16.23-40.el9_8.1 ALSA-2026:18786 May 19, 2026
bind-utils · amzn 2023 32:9.18.33-1.amzn2023.0.4 ALAS2023-2025-1255 Nov 5, 2025
bind-utils · ol 10 32:9.18.33-4.0.1.el10_0.2 ELSA-2025-19912 Nov 6, 2025
bind-utils · ol 9 32:9.16.23-40.0.1.el9_8.1 ELSA-2026-18786 Jun 12, 2026
bind-utils-debuginfo · amzn 2023 32:9.18.33-1.amzn2023.0.4 ALAS2023-2025-1255 Nov 5, 2025
bind9 · Debian 12.15 (bookworm) 1:9.18.41-1~deb12u1 DEBIAN-CVE-2025-8677 Oct 22, 2025
bind9 · Debian 13.5 (trixie) 1:9.20.15-1~deb13u1 DEBIAN-CVE-2025-8677 Oct 22, 2025
bind9 · Debian 14 1:9.20.15-1 DEBIAN-CVE-2025-8677 Oct 22, 2025
bind9 · Ubuntu 18.04.6 LTS (bionic) 1:9.11.3+dfsg-1ubuntu1.19+esm6 bind9 1:9.11.3+dfsg-1ubuntu1.19+esm6 Sep 16, 2026
bind9 · Ubuntu 20.04 LTS (focal) 1:9.18.30-0ubuntu0.20.04.2+esm1 bind9 1:9.18.30-0ubuntu0.20.04.2+esm1 Oct 21, 2025
bind9 · Ubuntu 22.04.1 LTS (jammy) 1:9.18.39-0ubuntu0.22.04.2 bind9 1:9.18.39-0ubuntu0.22.04.2 Oct 21, 2025
bind9 · Ubuntu 24.04.5 LTS (noble) 1:9.18.39-0ubuntu0.24.04.2 bind9 1:9.18.39-0ubuntu0.24.04.2 Oct 21, 2025
bind9 · Ubuntu 25.04 (plucky) 1:9.20.11-0ubuntu0.2 bind9 1:9.20.11-0ubuntu0.2 Oct 22, 2025
bind9 · Ubuntu 25.10 (questing) 1:9.20.11-1ubuntu2.1 bind9 1:9.20.11-1ubuntu2.1 Oct 21, 2025
bind9 · Ubuntu 26.04.1 LTS (resolute) 1:9.20.11-1ubuntu3 bind9 1:9.20.11-1ubuntu3 Oct 21, 2025
bind9-dnsutils · Ubuntu 20.04 LTS (focal) 1:9.18.30-0ubuntu0.20.04.2+esm1 bind9-dnsutils 1:9.18.30-0ubuntu0.20.04.2+esm1 Oct 21, 2025
bind9-dnsutils · Ubuntu 22.04.1 LTS (jammy) 1:9.18.39-0ubuntu0.22.04.2 bind9-dnsutils 1:9.18.39-0ubuntu0.22.04.2 Oct 21, 2025
bind9-dnsutils · Ubuntu 24.04.5 LTS (noble) 1:9.18.39-0ubuntu0.24.04.2 bind9-dnsutils 1:9.18.39-0ubuntu0.24.04.2 Oct 21, 2025
bind9-dnsutils · Ubuntu 25.04 (plucky) 1:9.20.11-0ubuntu0.2 bind9-dnsutils 1:9.20.11-0ubuntu0.2 Oct 22, 2025
bind9-dnsutils · Ubuntu 25.10 (questing) 1:9.20.11-1ubuntu2.1 bind9-dnsutils 1:9.20.11-1ubuntu2.1 Oct 21, 2025
bind9-dnsutils · Ubuntu 26.04.1 LTS (resolute) 1:9.20.11-1ubuntu3 bind9-dnsutils 1:9.20.11-1ubuntu3 Oct 21, 2025
bind9-host · Ubuntu 18.04.6 LTS (bionic) 1:9.11.3+dfsg-1ubuntu1.19+esm6 bind9-host 1:9.11.3+dfsg-1ubuntu1.19+esm6 Sep 16, 2026
bind9-host · Ubuntu 20.04 LTS (focal) 1:9.18.30-0ubuntu0.20.04.2+esm1 bind9-host 1:9.18.30-0ubuntu0.20.04.2+esm1 Oct 21, 2025
bind9-host · Ubuntu 22.04.1 LTS (jammy) 1:9.18.39-0ubuntu0.22.04.2 bind9-host 1:9.18.39-0ubuntu0.22.04.2 Oct 21, 2025
bind9-host · Ubuntu 24.04.5 LTS (noble) 1:9.18.39-0ubuntu0.24.04.2 bind9-host 1:9.18.39-0ubuntu0.24.04.2 Oct 21, 2025
bind9-host · Ubuntu 25.04 (plucky) 1:9.20.11-0ubuntu0.2 bind9-host 1:9.20.11-0ubuntu0.2 Oct 22, 2025
bind9-host · Ubuntu 25.10 (questing) 1:9.20.11-1ubuntu2.1 bind9-host 1:9.20.11-1ubuntu2.1 Oct 21, 2025
bind9-host · Ubuntu 26.04.1 LTS (resolute) 1:9.20.11-1ubuntu3 bind9-host 1:9.20.11-1ubuntu3 Oct 21, 2025
bind9-libs · Ubuntu 20.04 LTS (focal) 1:9.18.30-0ubuntu0.20.04.2+esm1 bind9-libs 1:9.18.30-0ubuntu0.20.04.2+esm1 Oct 21, 2025
bind9-libs · Ubuntu 22.04.1 LTS (jammy) 1:9.18.39-0ubuntu0.22.04.2 bind9-libs 1:9.18.39-0ubuntu0.22.04.2 Oct 21, 2025
bind9-libs · Ubuntu 24.04.5 LTS (noble) 1:9.18.39-0ubuntu0.24.04.2 bind9-libs 1:9.18.39-0ubuntu0.24.04.2 Oct 21, 2025
bind9-libs · Ubuntu 25.04 (plucky) 1:9.20.11-0ubuntu0.2 bind9-libs 1:9.20.11-0ubuntu0.2 Oct 22, 2025
bind9-libs · Ubuntu 25.10 (questing) 1:9.20.11-1ubuntu2.1 bind9-libs 1:9.20.11-1ubuntu2.1 Oct 21, 2025
bind9-libs · Ubuntu 26.04.1 LTS (resolute) 1:9.20.11-1ubuntu3 bind9-libs 1:9.20.11-1ubuntu3 Oct 21, 2025
bind9-utils · Ubuntu 20.04 LTS (focal) 1:9.18.30-0ubuntu0.20.04.2+esm1 bind9-utils 1:9.18.30-0ubuntu0.20.04.2+esm1 Oct 21, 2025
bind9-utils · Ubuntu 22.04.1 LTS (jammy) 1:9.18.39-0ubuntu0.22.04.2 bind9-utils 1:9.18.39-0ubuntu0.22.04.2 Oct 21, 2025
bind9-utils · Ubuntu 24.04.5 LTS (noble) 1:9.18.39-0ubuntu0.24.04.2 bind9-utils 1:9.18.39-0ubuntu0.24.04.2 Oct 21, 2025
bind9-utils · Ubuntu 25.04 (plucky) 1:9.20.11-0ubuntu0.2 bind9-utils 1:9.20.11-0ubuntu0.2 Oct 22, 2025
bind9-utils · Ubuntu 25.10 (questing) 1:9.20.11-1ubuntu2.1 bind9-utils 1:9.20.11-1ubuntu2.1 Oct 21, 2025
bind9-utils · Ubuntu 26.04.1 LTS (resolute) 1:9.20.11-1ubuntu3 bind9-utils 1:9.20.11-1ubuntu3 Oct 21, 2025
bind9.18 · RHEL 9 32:9.18.29-5.el9_7.2 RHSA-2025:21111 Nov 12, 2025
bind9.18 · almalinux 9 32:9.18.29-5.el9_7.2 ALSA-2025:21111 Nov 12, 2025
bind9.18 · ol 9 32:9.18.29-4.el9_6.2 ELSA-2025-19950 Nov 10, 2025
bind9.18 · rocky 9 2:9.18.29-5.el9_7.2 RLSA-2025:21111 Nov 21, 2025
bind9.18-chroot · RHEL 9 32:9.18.29-5.el9_7.2 RHSA-2025:21111 Nov 12, 2025
bind9.18-chroot · almalinux 9 32:9.18.29-5.el9_7.2 ALSA-2025:21111 Nov 12, 2025
bind9.18-chroot · ol 9 32:9.18.29-4.el9_6.2 ELSA-2025-19950 Nov 10, 2025
bind9.18-devel · RHEL 9 32:9.18.29-5.el9_7.2 RHSA-2025:21111 Nov 12, 2025
bind9.18-devel · almalinux 9 32:9.18.29-5.el9_7.2 ALSA-2025:21111 Nov 12, 2025
bind9.18-devel · ol 9 32:9.18.29-4.el9_6.2 ELSA-2025-19950 Nov 10, 2025
bind9.18-dnssec-utils · RHEL 9 32:9.18.29-5.el9_7.2 RHSA-2025:21111 Nov 12, 2025
bind9.18-dnssec-utils · almalinux 9 32:9.18.29-5.el9_7.2 ALSA-2025:21111 Nov 12, 2025
bind9.18-dnssec-utils · ol 9 32:9.18.29-4.el9_6.2 ELSA-2025-19950 Nov 10, 2025
bind9.18-doc · RHEL 9 32:9.18.29-5.el9_7.2 RHSA-2025:21111 Nov 12, 2025
bind9.18-doc · almalinux 9 32:9.18.29-5.el9_7.2 ALSA-2025:21111 Nov 12, 2025
bind9.18-doc · ol 9 32:9.18.29-4.el9_6.2 ELSA-2025-19950 Nov 10, 2025
bind9.18-libs · RHEL 9 32:9.18.29-5.el9_7.2 RHSA-2025:21111 Nov 12, 2025
bind9.18-libs · almalinux 9 32:9.18.29-5.el9_7.2 ALSA-2025:21111 Nov 12, 2025
bind9.18-libs · ol 9 32:9.18.29-4.el9_6.2 ELSA-2025-19950 Nov 10, 2025
bind9.18-utils · RHEL 9 32:9.18.29-5.el9_7.2 RHSA-2025:21111 Nov 12, 2025
bind9.18-utils · almalinux 9 32:9.18.29-5.el9_7.2 ALSA-2025:21111 Nov 12, 2025
bind9.18-utils · ol 9 32:9.18.29-4.el9_6.2 ELSA-2025-19950 Nov 10, 2025
bind9utils · Ubuntu 18.04.6 LTS (bionic) 1:9.11.3+dfsg-1ubuntu1.19+esm6 bind9utils 1:9.11.3+dfsg-1ubuntu1.19+esm6 Sep 16, 2026
bind9utils · Ubuntu 20.04 LTS (focal) 1:9.18.30-0ubuntu0.20.04.2+esm1 bind9utils 1:9.18.30-0ubuntu0.20.04.2+esm1 Oct 21, 2025
bind9utils · Ubuntu 22.04.1 LTS (jammy) 1:9.18.39-0ubuntu0.22.04.2 bind9utils 1:9.18.39-0ubuntu0.22.04.2 Oct 21, 2025
bind9utils · Ubuntu 24.04.5 LTS (noble) 1:9.18.39-0ubuntu0.24.04.2 bind9utils 1:9.18.39-0ubuntu0.24.04.2 Oct 21, 2025
bind9utils · Ubuntu 25.04 (plucky) 1:9.20.11-0ubuntu0.2 bind9utils 1:9.20.11-0ubuntu0.2 Oct 22, 2025
dnsutils · Ubuntu 18.04.6 LTS (bionic) 1:9.11.3+dfsg-1ubuntu1.19+esm6 dnsutils 1:9.11.3+dfsg-1ubuntu1.19+esm6 Sep 16, 2026
dnsutils · Ubuntu 20.04 LTS (focal) 1:9.18.30-0ubuntu0.20.04.2+esm1 dnsutils 1:9.18.30-0ubuntu0.20.04.2+esm1 Oct 21, 2025
dnsutils · Ubuntu 22.04.1 LTS (jammy) 1:9.18.39-0ubuntu0.22.04.2 dnsutils 1:9.18.39-0ubuntu0.22.04.2 Oct 21, 2025
dnsutils · Ubuntu 24.04.5 LTS (noble) 1:9.18.39-0ubuntu0.24.04.2 dnsutils 1:9.18.39-0ubuntu0.24.04.2 Oct 21, 2025
dnsutils · Ubuntu 25.04 (plucky) 1:9.20.11-0ubuntu0.2 dnsutils 1:9.20.11-0ubuntu0.2 Oct 22, 2025
libbind9-160 · Ubuntu 18.04.6 LTS (bionic) 1:9.11.3+dfsg-1ubuntu1.19+esm6 libbind9-160 1:9.11.3+dfsg-1ubuntu1.19+esm6 Sep 16, 2026
libdns-export1100 · Ubuntu 18.04.6 LTS (bionic) 1:9.11.3+dfsg-1ubuntu1.19+esm6 libdns-export1100 1:9.11.3+dfsg-1ubuntu1.19+esm6 Sep 16, 2026
libdns1100 · Ubuntu 18.04.6 LTS (bionic) 1:9.11.3+dfsg-1ubuntu1.19+esm6 libdns1100 1:9.11.3+dfsg-1ubuntu1.19+esm6 Sep 16, 2026
libirs-export160 · Ubuntu 18.04.6 LTS (bionic) 1:9.11.3+dfsg-1ubuntu1.19+esm6 libirs-export160 1:9.11.3+dfsg-1ubuntu1.19+esm6 Sep 16, 2026
libirs160 · Ubuntu 18.04.6 LTS (bionic) 1:9.11.3+dfsg-1ubuntu1.19+esm6 libirs160 1:9.11.3+dfsg-1ubuntu1.19+esm6 Sep 16, 2026
libisc-export169 · Ubuntu 18.04.6 LTS (bionic) 1:9.11.3+dfsg-1ubuntu1.19+esm6 libisc-export169 1:9.11.3+dfsg-1ubuntu1.19+esm6 Sep 16, 2026
libisc169 · Ubuntu 18.04.6 LTS (bionic) 1:9.11.3+dfsg-1ubuntu1.19+esm6 libisc169 1:9.11.3+dfsg-1ubuntu1.19+esm6 Sep 16, 2026
libisccc-export160 · Ubuntu 18.04.6 LTS (bionic) 1:9.11.3+dfsg-1ubuntu1.19+esm6 libisccc-export160 1:9.11.3+dfsg-1ubuntu1.19+esm6 Sep 16, 2026
libisccc160 · Ubuntu 18.04.6 LTS (bionic) 1:9.11.3+dfsg-1ubuntu1.19+esm6 libisccc160 1:9.11.3+dfsg-1ubuntu1.19+esm6 Sep 16, 2026
libisccfg-export160 · Ubuntu 18.04.6 LTS (bionic) 1:9.11.3+dfsg-1ubuntu1.19+esm6 libisccfg-export160 1:9.11.3+dfsg-1ubuntu1.19+esm6 Sep 16, 2026
libisccfg160 · Ubuntu 18.04.6 LTS (bionic) 1:9.11.3+dfsg-1ubuntu1.19+esm6 libisccfg160 1:9.11.3+dfsg-1ubuntu1.19+esm6 Sep 16, 2026
liblwres160 · Ubuntu 18.04.6 LTS (bionic) 1:9.11.3+dfsg-1ubuntu1.19+esm6 liblwres160 1:9.11.3+dfsg-1ubuntu1.19+esm6 Sep 16, 2026
python3-bind · RHEL 9 32:9.16.23-40.el9_8.1 RHSA-2026:18786 May 27, 2026
python3-bind · almalinux 9 32:9.16.23-40.el9_8.1 ALSA-2026:18786 May 19, 2026
python3-bind · ol 9 32:9.16.23-40.0.1.el9_8.1 ELSA-2026-18786 Jun 12, 2026

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