CVE-2025-8677

Name: CVE-2025-8677
Creator: NVD / NIST
Published: 2025-10-22T16:15:46.043+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.5/10EPSS 10.96%

Last modified Jun 17, 2026

CVE-2025-8677 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. 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.. EPSS estimates a 10.96% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1

7.5/10

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

EPSS Probability

10.96%

95.3th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-405

References

Timeline

Published: Oct 22, 2025
Last Modified: Jun 17, 2026
Status: Deferred

Frequently Asked Questions

What is CVE-2025-8677?

How severe is CVE-2025-8677?

CVE-2025-8677 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 10.96% probability of exploitation in the next 30 days.

How do I fix CVE-2025-8677?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2025-8677?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST