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I. Basic Information for CVE-2025-40778
Vulnerability Information
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Vulnerability Title
Cache poisoning attacks with unsolicited RRs
Source: NVD (National Vulnerability Database)
Vulnerability Description
Under certain circumstances, BIND is too lenient when accepting records from answers, allowing an attacker to inject forged data into the cache. This issue affects BIND 9 versions 9.11.0 through 9.16.50, 9.18.0 through 9.18.39, 9.20.0 through 9.20.13, 9.21.0 through 9.21.12, 9.11.3-S1 through 9.16.50-S1, 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:C/C:N/I:H/A:N
Source: NVD (National Vulnerability Database)
Vulnerability Type
在可信数据中接受外来的不可信数据
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 9.11.0版本至9.16.50版本、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、9.11.3-S1版本至9.16.50-S1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，该漏洞源于接受应答记录时过于宽松，可能导致缓存中注入伪造数据。
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-2025-40778
#POC DescriptionSource LinkShenlong Link
1POC CVE-2025-40778: Cache Poisoning BIND 9 👾https://github.com/nehkark/CVE-2025-40778POC Details
2Proof of Concept for CVE-2025-40778: BIND 9 DNS Cache Poisoning via unsolicited Additional Section records.https://github.com/sirbuvladste/BIND-9-Cache-Poisoning-PoC---CVE-2025-40778POC Details
3Forensic triage of DNS cache poisoning in legacy hardware. Includes PCAP analysis of 839-byte unsolicited record injections, CVE-2025-40778 mapping, and remediation via hardened Unbound (DoT) on Arch Linux.https://github.com/nicholasC03/DNS-Poisoning-Triage-LabPOC Details
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III. Intelligence Information for CVE-2025-40778
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IV. Related Vulnerabilities
Same product: BIND 9
Same vendor: ISC
Same weakness: CWE-349
V. Comments for CVE-2025-40778

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