CVE-2025-8677— Resource exhaustion via malformed DNSKEY handling
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I. Basic Information for CVE-2025-8677
Vulnerability Information
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Vulnerability Title
Resource exhaustion via malformed DNSKEY handling
Source: NVD (National Vulnerability Database)
Vulnerability 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.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Source: NVD (National Vulnerability Database)
Vulnerability Type
不对称的资源消耗(放大攻击)
Source: NVD (National Vulnerability Database)
Vulnerability Title
ISC BIND 9 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
ISC BIND 9是ISC组织的一个域名系统软件。 ISC BIND 9 9.18.0版本至9.18.39版本、9.20.0版本至9.20.13版本、9.21.0版本至9.21.12版本、9.18.11-S1版本至9.18.39-S1版本和9.20.9-S1版本至9.20.13-S1版本存在安全漏洞，该漏洞源于处理特制区域中畸形DNSKEY记录时资源消耗不当，可能导致CPU耗尽。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
II. Public POCs for CVE-2025-8677
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|---|
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Same Patch Batch · ISC · 2025-10-22 · 3 CVEs total
| CVE-2025-40778 | 8.6 HIGH | Cache poisoning attacks with unsolicited RRs |
| CVE-2025-40780 | 8.6 HIGH | Cache poisoning due to weak PRNG |
IV. Related Vulnerabilities
Same product: BIND 9
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A stack use-after-return flaw in SIG(0) handling code may en - CVE-2026-3119
Authenticated query containing a TKEY record may cause named - CVE-2026-3104
Memory leak in code preparing DNSSEC proofs of non-existence - CVE-2026-1519
Excessive NSEC3 iterations cause high CPU load during insecu - CVE-2025-13878
Malformed BRID/HHIT records can cause named to terminate une
Same vendor: ISC
- CVE-2026-3591
A stack use-after-return flaw in SIG(0) handling code may en - CVE-2026-3119
Authenticated query containing a TKEY record may cause named - CVE-2026-3104
Memory leak in code preparing DNSSEC proofs of non-existence - CVE-2026-1519
Excessive NSEC3 iterations cause high CPU load during insecu - CVE-2026-3608
Stack overflow in Kea daemons
Same weakness: CWE-405
- CVE-2026-35665
OpenClaw < 2026.3.24 - Denial of Service via Feishu Webhook - CVE-2026-35626
OpenClaw < 2026.3.22 - Unauthenticated Resource Exhaustion v - CVE-2026-25611
Pre-Authentication Memory Exhaustion Denial of Service in Mo - CVE-2026-24324
Denial of service (DOS) vulnerability in SAP BusinessObjects - CVE-2026-0485
Denial of service (DOS) vulnerability in SAP BusinessObjects
V. Comments for CVE-2025-8677
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