CVE 7.5 HIGH

Resource exhaustion via malformed DNSKEY handling_CVE-2025-8677

7.5 / 10
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Description

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.

Basic Information

ID CVE-2025-8677
Source isc
Published Oct 22, 2025 at 15:43
Modified Oct 22, 2025 at 17:29

Affected Product

Vendor ISC
Product BIND 9
Version 9.18.0
Affected Versions ISC BIND 9 9.18.0
ISC BIND 9 9.20.0
ISC BIND 9 9.21.0
ISC BIND 9 9.18.11-S1
ISC BIND 9 9.20.9-S1

CWE Classification

References

💭 Join the Security Discussion

🔒 Your email address will not be published. Required fields are marked *

⚠️ Please be respectful and constructive in your comments. Security discussions should remain professional.