CVE-2025-8677
7.5
HIGH
CVSS 3.1
EPSS 0.07%
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.
How to fix CVE-2025-8677
To remediate CVE-2025-8677, upgrade the affected package to a fixed version below.
- Alpine/bind—upgrade to 9.18.41-r0 or later
- —upgrade to 1:9.16.50-1~deb11u4 or later
Is CVE-2025-8677 being exploited?
Low — EPSS is 0.1%, meaning exploitation activity has not been observed at scale.
Affected packages (2)
- from 0, < 9.18.41-r0
- from 0, < 1:9.16.50-1~deb11u4
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |