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CVE-2026-24932— An improper certificate validation vulnerability was found in ADM while updating the DDNS settings.

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更新功能未正确验证TLS/SSL证书主机名，可能导致中间人攻击并获取敏感信息。

AI Predicted 7.4 Difficulty: Hard EPSS 0.21% · P11

Possible ATT&CK Techniques 1 AI

T1557 · Adversary-in-the-Middle
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I. Basic Information for CVE-2026-24932

Vulnerability Information
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Vulnerability Title
An improper certificate validation vulnerability was found in ADM while updating the DDNS settings.
Source: CVE Program / CVE List V5
Vulnerability Description
The DDNS update function in ADM fails to properly validate the hostname of the DDNS server's TLS/SSL certificate. Although the connection uses HTTPS, an improper validated TLS/SSL certificates allows a remote attacker can intercept the communication to perform a Man-in-the-Middle (MitM) attack, which may obtain the sensitive information of DDNS updating process, including the user's account email, MD5 hashed password, and device serial number.This issue affects ADM: from 4.1.0 through 4.3.3.ROF1, from 5.0.0 through 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:H/VI:N/VA:N/SC:H/SI:N/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更新功能未正确验证TLS/SSL证书主机名，可能导致中间人攻击并获取敏感信息。
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-2026-24932

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III. Intelligence Information for CVE-2026-24932

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Vendor Advisories for CVE-2026-24932 (1)

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

CVE-2026-24934 An improper certificate validation vulnerability was found in ADM while querying an extern
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-2026-24932

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