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CVE-2026-24934— An improper certificate validation vulnerability was found in ADM while querying an external server for the device's WAN IP address.

Quick assessment

Affected
ASUSTOR ADM
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

ASUSTOR ADM是中国华芸科技（ASUSTOR）公司的一种所有 ASUSTOR NAS 设备的专用操作系统。 ASUSTOR ADM 4.1.0版本至4.3.3.ROF1版本和5.0.0版本至5.1.1.RCI1版本存在安全漏洞，该漏洞源于DDNS功能使用不安全的HTTP连接或未验证SSL/TLS证书，可能导致中间人攻击并伪造响应。

AI Predicted 5.9 Difficulty: Easy EPSS 0.16% · P5
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I. Basic Information for CVE-2026-24934

Vulnerability Information
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Vulnerability Title
An improper certificate validation vulnerability was found in ADM while querying an external server for the device's WAN IP address.
Source: CVE Program / CVE List V5
Vulnerability Description
The DDNS function uses an insecure HTTP connection or fails to validate the SSL/TLS certificate when querying an external server for the device's WAN IP address. An unauthenticated remote attacker can perform a Man-in-the-Middle (MitM) attack to spoof the response, leading the device to update its DDNS record with an incorrect IP address. Affected products and versions include: from ADM 4.1.0 through ADM 4.3.3.ROF1 as well as from ADM 5.0.0 through ADM 5.1.1.RCI1.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:L/SA:N
Source: CVE Program / CVE List V5
Vulnerability Type
证书验证不恰当
Source: CVE Program / CVE List V5
Vulnerability Title
ASUSTOR ADM 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
ASUSTOR ADM是中国华芸科技（ASUSTOR）公司的一种所有 ASUSTOR NAS 设备的专用操作系统。 ASUSTOR ADM 4.1.0版本至4.3.3.ROF1版本和5.0.0版本至5.1.1.RCI1版本存在安全漏洞，该漏洞源于DDNS功能使用不安全的HTTP连接或未验证SSL/TLS证书，可能导致中间人攻击并伪造响应。
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

Vendor Product Affected Versions CPE Subscribe
ASUSTOR ADM 4.1.0 ~ 4.3.3.ROF1 -

II. Public POCs for CVE-2026-24934

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III. Intelligence Information for CVE-2026-24934

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Vendor Advisories for CVE-2026-24934 (1)

Same Patch Batch · ASUSTOR · 2026-02-03 · 5 CVEs total

CVE-2026-24932 An improper certificate validation vulnerability was found in ADM while updating the DDNS
CVE-2026-24935 An improper certificate validation vulnerability was found in a third-party NAT traversal
CVE-2026-24933 An improper certificate validation vulnerability was found in ADM while sending HTTPS requ
CVE-2026-24936 An improper input validation vulnerability was found in ADM while joining a AD Domain.

IV. Related Vulnerabilities

Same product: ADM
Same vendor: ASUSTOR
Same weakness: CWE-295

V. Comments for CVE-2026-24934

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