CVE-2025-8677

HIGH EPSS 95.3%

Published Oct 22, 20258mo ago · Modified Jun 17, 20262w ago

7.5 CVSS 3.1

High

Published Oct 22, 2025 8mo ago

Last Modified Jun 17, 2026 2w ago

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.

CVSS Details

Base Score

7.5

Exploitability

3.9

Impact

3.6

Vector string

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

Attack Vector Network

Attack Complexity Low

Privileges Required None

User Interaction None

Scope Unchanged

Confidentiality None

Integrity None

Availability High

Threat Intelligence

EPSS Exploit Probability

95.3% percentile

Exploit & Patch Status

No Known Exploit

No Patch Available

Weaknesses 1

CWE-405

References 2

openwall.com http://www.openwall.com/lists/oss-security/2025/10/22/1
kb.isc.org https://kb.isc.org/docs/cve-2025-8677

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.