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Vulnerability Intelligence

Vulnerability IntelligenceCVE-2025-8677

CVE-2025-8677

HIGH7.5

Resource exhaustion via malformed DNSKEY handling

Published Oct 22, 2025

Modified 2 months ago

Details

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.

References

WEBhttp://www.openwall.com/lists/oss-security/2025/10/22/1 ADVISORYhttps://kb.isc.org/docs/cve-2025-8677 ADVISORYhttps://www.cve.org/CVERecord?id=CVE-2025-8677

CVSS Analysis

CVSS v3.1

7.5

Exploitability

Attack Vector

NetworkAV:N

Attack Complexity

LowAC:L

Privileges Required

NonePR:N

User Interaction

NoneUI:N

Scope

Scope

UnchangedS:U

Impact

Confidentiality

NoneC:N

Integrity

NoneI:N

Availability

HighA:H

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

Weakness Type (CWE)

Other

Ecosystems

Timeline

PublishedOct 22, 2025

ModifiedNov 4, 2025

CVE-2025-8677 | Mondoo Vulnerability Intelligence