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TI-2025-07941 Aliases CVE-2025-8677GHSA-924g-f9mr-cm6x

Resource exhaustion via malformed DNSKEY handling

Priority MEDIUM 52CWE-405Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
—
Confidentiality · integrity · availability
None · None · High
Fix status
Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA and Red Hat.

Summary

Querying for records within a specially crafted zone containing certain malformed DNSKEY records can lead to CPU exhaustion. This issue affects BIND 9 versions 9.18.0 through 9.18.39, 9.20.0 through 9.20.13, 9.21.0 through 9.21.12, 9.18.11-S1 through 9.18.39-S1, and 9.20.9-S1 through 9.20.13-S1.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.10737 95th percentileScored 2026-11-07
Fix Fixed Red Hat: 16 advisories

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
Yes
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
ISCBIND 99.18.0 – 9.18.39; 9.20.0 – 9.20.13; 9.21.0 – 9.21.12; 9.18.11-S1 – 9.18.39-S1; 9.20.9-S1 – 9.20.13-S1—No fix listedCNA
  • BIND 9 VendorISC Affected 9.18.0 – 9.18.39; 9.20.0 – 9.20.13; 9.21.0 – 9.21.12; 9.18.11-S1 – 9.18.39-S1; 9.20.9-S1 – 9.20.13-S1 Fixed in — No fix listed CNA

CPE names Threatist (inferred) · 1

Inferred from how NVD named this product before; not given by a source.

CPEVersionsRoleVendor
cpe:2.3:a:isc:bind:*:*:*:*:*:*:*:*——ISC
  • cpe:2.3:a:isc:bind:*:*:*:*:*:*:*:* Versions — — ·ISC

Remediation

Red Hat 16 advisories

  • RHSA-2026:18786 Released 2026-05-19 · Red Hat rating Important
    bind security update
    • Red Hat Enterprise Linux AppStream (v. 9) bind-32:9.16.23-40.el9_8.1, bind-chroot-32:9.16.23-40.el9_8.1, bind-dnssec-doc-32:9.16.23-40.el9_8.1 +5
    • Red Hat Enterprise Linux CodeReady Linux Builder (v. 9) bind-devel-32:9.16.23-40.el9_8.1, bind-doc-32:9.16.23-40.el9_8.1, bind-libs-32:9.16.23-40.el9_8.1
  • RHSA-2026:6935 Released 2026-04-07 · Red Hat rating Important
    Red Hat Hardened Images RPMs bug fix and enhancement update
    • Red Hat Hardened Images bind-9.18.48-1.hum1@aarch64, bind-9.18.48-1.hum1@src, bind-9.18.48-1.hum1@x86_64 +12
  • RHSA-2026:1541 Released 2026-02-05 · Red Hat rating Important
    OpenShift Container Platform 4.15.61 bug fix and security update
    • Red Hat OpenShift Container Platform 4.15 rhcos-aarch64-415.92.202601271320-0, rhcos-ppc64le-415.92.202601271320-0, rhcos-s390x-415.92.202601271320-0 +1
Show 13 more Red Hat advisories
  • RHSA-2026:0996 Released 2026-01-30 · Red Hat rating Important
    OpenShift Container Platform 4.14.61 bug fix and security update
    • Red Hat OpenShift Container Platform 4.14 rhcos-aarch64-414.92.202601191325-0, rhcos-ppc64le-414.92.202601191325-0, rhcos-s390x-414.92.202601191325-0 +1
  • RHSA-2026:0674 Released 2026-01-22 · Red Hat rating Important
    OpenShift Container Platform 4.19.22 bug fix and security update
    • Red Hat OpenShift Container Platform 4.19 rhcos-aarch64-4.19.9.6.202601130152-0, rhcos-ppc64le-4.19.9.6.202601130152-0, rhcos-s390x-4.19.9.6.202601130152-0 +1
  • RHSA-2026:0677 Released 2026-01-22 · Red Hat rating Important
    OpenShift Container Platform 4.13.63 bug fix and security update
    • Red Hat OpenShift Container Platform 4.13 rhcos-x86_64-413.92.202601130113-0
  • RHSA-2026:0702 Released 2026-01-22 · Red Hat rating Important
    OpenShift Container Platform 4.17.47 bug fix and security update
    • Red Hat OpenShift Container Platform 4.17 rhcos-aarch64-417.94.202601120213-0, rhcos-ppc64le-417.94.202601120213-0, rhcos-s390x-417.94.202601120213-0 +1
  • RHSA-2026:0332 Released 2026-01-15 · Red Hat rating Important
    OpenShift Container Platform 4.18.31 bug fix and security update
    • Red Hat OpenShift Container Platform 4.18 rhcos-aarch64-418.94.202601071817-0, rhcos-ppc64le-418.94.202601071817-0, rhcos-s390x-418.94.202601071817-0 +1
  • RHSA-2026:0326 Released 2026-01-15 · Red Hat rating Important
    OpenShift Container Platform 4.16.55 bug fix and security update
    • Red Hat OpenShift Container Platform 4.16 rhcos-aarch64-416.94.202601071926-0, rhcos-ppc64le-416.94.202601071926-0, rhcos-s390x-416.94.202601071926-0 +1
  • RHSA-2026:0316 Released 2026-01-15 · Red Hat rating Important
    OpenShift Container Platform 4.12.84 bug fix and security update
    • Red Hat OpenShift Container Platform 4.12 rhcos-x86_64-412.86.202601061735-0
  • RHSA-2026:0420 Released 2026-01-14 · Red Hat rating Important
    OpenShift Container Platform 4.20.10 bug fix and security update
    • Red Hat OpenShift Container Platform 4.20 rhcos-aarch64-4.20.9.6.202601052146-0, rhcos-ppc64le-4.20.9.6.202601052146-0, rhcos-s390x-4.20.9.6.202601052146-0 +1
  • RHSA-2025:21994 Released 2025-11-24 · Red Hat rating Important
    A Subscription Management tool for finding and reporting Red Hat product usage
    • Red Hat Discovery 2 registry.redhat.io/discovery/discovery-server-rhel9, registry.redhat.io/discovery/discovery-ui-rhel9
  • RHSA-2025:21111 Released 2025-11-12 · Red Hat rating Important
    bind9.18 security update
    • Red Hat Enterprise Linux AppStream (v. 9) bind9.18-32:9.18.29-5.el9_7.2, bind9.18-chroot-32:9.18.29-5.el9_7.2, bind9.18-dnssec-utils-32:9.18.29-5.el9_7.2 +2
    • Red Hat Enterprise Linux CodeReady Linux Builder (v. 9) bind9.18-devel-32:9.18.29-5.el9_7.2, bind9.18-doc-32:9.18.29-5.el9_7.2, bind9.18-libs-32:9.18.29-5.el9_7.2
  • RHSA-2025:21034 Released 2025-11-11 · Red Hat rating Important
    bind security update
    • Red Hat Enterprise Linux AppStream (v. 10) bind-32:9.18.33-10.el10_1.2, bind-chroot-32:9.18.33-10.el10_1.2, bind-dnssec-utils-32:9.18.33-10.el10_1.2 +3
    • Red Hat Enterprise Linux CodeReady Linux Builder (v. 10) bind-devel-32:9.18.33-10.el10_1.2, bind-doc-32:9.18.33-10.el10_1.2
  • RHSA-2025:19950 Released 2025-11-10 · Red Hat rating Important
    bind9.18 security update
    • Red Hat Enterprise Linux AppStream (v. 9) bind9.18-32:9.18.29-4.el9_6.2, bind9.18-chroot-32:9.18.29-4.el9_6.2, bind9.18-dnssec-utils-32:9.18.29-4.el9_6.2 +2
    • Red Hat Enterprise Linux CodeReady Linux Builder (v. 9) bind9.18-devel-32:9.18.29-4.el9_6.2, bind9.18-doc-32:9.18.29-4.el9_6.2, bind9.18-libs-32:9.18.29-4.el9_6.2
  • RHSA-2025:19912 Released 2025-11-06 · Red Hat rating Important
    bind security update
    • Red Hat Enterprise Linux AppStream (v. 10) bind-32:9.18.33-4.el10_0.2, bind-chroot-32:9.18.33-4.el10_0.2, bind-dnssec-utils-32:9.18.33-4.el10_0.2 +3
    • Red Hat Enterprise Linux CodeReady Linux Builder (v. 10) bind-devel-32:9.18.33-4.el10_0.2, bind-doc-32:9.18.33-4.el10_0.2

Vendor assessments

Red Hat

Red Hat rating: Important. Red Hat's page for this CVE →

ProductStatusPlan or fix
Red Hat Discovery 2Fixed RHSA-2025:21994
Red Hat Enterprise Linux AppStream (v. 10)Fixed RHSA-2025:19912, RHSA-2025:21034
Red Hat Enterprise Linux AppStream (v. 9)Fixed RHSA-2025:19950, RHSA-2025:21111, RHSA-2026:18786
Red Hat Enterprise Linux CodeReady Linux Builder (v. 10)Fixed RHSA-2025:19912, RHSA-2025:21034
Red Hat Enterprise Linux CodeReady Linux Builder (v. 9)Fixed RHSA-2025:19950, RHSA-2025:21111, RHSA-2026:18786
Red Hat Hardened ImagesFixed RHSA-2026:6935
Red Hat OpenShift Container Platform 4.12Fixed RHSA-2026:0316
Red Hat OpenShift Container Platform 4.13Fixed RHSA-2026:0677
Red Hat OpenShift Container Platform 4.14Fixed RHSA-2026:0996
Red Hat OpenShift Container Platform 4.15Fixed RHSA-2026:1541
Red Hat OpenShift Container Platform 4.16Fixed RHSA-2026:0326
Red Hat OpenShift Container Platform 4.17Fixed RHSA-2026:0702
Red Hat OpenShift Container Platform 4.18Fixed RHSA-2026:0332
Red Hat OpenShift Container Platform 4.19Fixed RHSA-2026:0674
Red Hat OpenShift Container Platform 4.20Fixed RHSA-2026:0420
Not affected: 5 products
  • Red Hat Discovery 2
  • Red Hat Enterprise Linux 6
  • Red Hat Enterprise Linux 7
  • Red Hat Enterprise Linux 8
  • Red Hat Enterprise Linux 9

Timeline

  1. 2026-10-02 Threatist record created from CVE-2025-8677
  2. 2026-10-03 Alias added: GHSA-924g-f9mr-cm6x
  3. 2026-11-05 Affected versions changed · Red Hat

References

Advisory 1

  • TI-2015-04610 Assertion failure in ISC BIND named via TKEY queries KEVCVSS 3.1HIGH 7.5
  • TI-2023-27571 Certain DNSSEC aspects of the DNS protocol (in RFC 4033, 4034, 4035, 6840, and related… CVSS 3.1HIGH 7.5
  • TI-2021-07476 A second vulnerability in BIND's GSSAPI security policy negotiation can be targeted by a buffer overflow attack CVSS 3.1CRITICAL 9.8
  • TI-1999-00042 Command execution via shell metachars in INN daemon (innd) 1.5 using "newgroup" and… CVSS 3.1CRITICAL 9.8
  • TI-2023-27773 The Closest Encloser Proof aspect of the DNS protocol (in RFC 5155 when RFC 9276 guidance… CVSS 3.1HIGH 7.5
  • TI-2025-27240 Cache poisoning attacks with unsolicited RRs CVSS 3.1HIGH 8.6
See all 285 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences