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CVE-2026-3592— Amplification vulnerabilities via self-pointed glue records

CVSS 5.3 · Medium EPSS 0.02% · P4

Affected Version Matrix 7

VendorProductVersion RangeStatus
ISCBIND 99.11.0≤ 9.16.50affected
9.18.0≤ 9.18.48affected
9.20.0≤ 9.20.22affected
9.21.0≤ 9.21.21affected
9.11.3-S1≤ 9.16.50-S1affected
9.18.11-S1≤ 9.18.48-S1affected
9.20.9-S1≤ 9.20.22-S1affected
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I. Basic Information for CVE-2026-3592

Vulnerability Information
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Vulnerability Title
Amplification vulnerabilities via self-pointed glue records
Source: NVD (National Vulnerability Database)
Vulnerability Description
BIND resolvers are vulnerable to an amplified resource consumption/exhaustion attack. If a victim resolver makes a query to a specially crafted zone, the resolver will consume disproportionate resources. This issue affects BIND 9 versions 9.11.0 through 9.16.50, 9.18.0 through 9.18.48, 9.20.0 through 9.20.22, 9.21.0 through 9.21.21, 9.11.3-S1 through 9.16.50-S1, 9.18.11-S1 through 9.18.48-S1, and 9.20.9-S1 through 9.20.22-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:L
Source: NVD (National Vulnerability Database)
Vulnerability Type
不正确的行为次序：早期放大攻击
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存在安全漏洞，该漏洞源于解析器容易受到资源消耗放大攻击，如果受害者解析器向特制区域发出查询，解析器将消耗不成比例的资源。以下版本受到影响：9.11.0版本至9.16.50版本、9.18.0版本至9.18.48版本、9.20.0版本至9.20.22版本、9.21.0版本至9.21.21版本、9.11.3-S1版本至9.16.50-S1版本、9.18.11-S1版本至9.18.48-S1版本和9.20.9-S1版本至9.20.22-S1
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

VendorProductAffected VersionsCPESubscribe
ISCBIND 9 9.11.0 ~ 9.16.50 -

II. Public POCs for CVE-2026-3592

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III. Intelligence Information for CVE-2026-3592

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Patches & Fixes for CVE-2026-3592 (1)

Vendor Advisories for CVE-2026-3592 (1)

Vendor Pages for CVE-2026-3592 (2)

Same Patch Batch · ISC · 2026-05-20 · 6 CVEs total

CVE-2026-30397.5 HIGHBIND 9 server memory exhaustion during GSS-API TKEY negotiation
CVE-2026-59477.5 HIGHSIG(0) validation during query flood may lead to undefined behavior
CVE-2026-59467.5 HIGHInvalid handling of CLASS != IN
CVE-2026-35937.4 HIGHHeap use-after-free vulnerability in BIND 9 DNS-over-HTTPS implementation
CVE-2026-59505.3 MEDIUMUnbounded resend loop in BIND 9 resolver

IV. Related Vulnerabilities

Same product: BIND 9
Same vendor: ISC
Same weakness: CWE-408

V. Comments for CVE-2026-3592

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