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CVE-2026-36538

Quick assessment

Affected
n/a n/a
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.

Netis AC1200是中国天旦（Netis）公司的一系列双频无线宽带路由器。 Netis AC1200 Router NC21 V4.0.1.4296版本存在安全漏洞，该漏洞源于包含硬编码的root凭据存储在/etc/shadow.sample中，root账户密码设置为弱密码root，可能导致攻击者以root身份认证并完全控制底层操作系统。

AI Predicted 7.8 Difficulty: Easy EPSS 0.30% · P22

Possible ATT&CK Techniques 1 AI

T1078 · Valid Accounts

Affected Version Matrix 1

VendorProduct Version RangeStatus
n/a n/a n/a affected
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I. Basic Information for CVE-2026-36538

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
Netis AC1200 Router NC21 V4.0.1.4296 contains a hard-coded root credential stored in /etc/shadow.sample. The password for the root account is set to the trivially weak value root, allowing an attacker with access to the device to authenticate as root and gain full control of the underlying operating system.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
Netis AC1200 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Netis AC1200是中国天旦（Netis）公司的一系列双频无线宽带路由器。 Netis AC1200 Router NC21 V4.0.1.4296版本存在安全漏洞，该漏洞源于包含硬编码的root凭据存储在/etc/shadow.sample中，root账户密码设置为弱密码root，可能导致攻击者以root身份认证并完全控制底层操作系统。
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
- n/a n/a -

II. Public POCs for CVE-2026-36538

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III. Intelligence Information for CVE-2026-36538

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Proof of Concept for CVE-2026-36538 (1)

Vendor Pages for CVE-2026-36538 (1)

Same Patch Batch · n/a · 2026-05-27 · 28 CVEs total

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CVE-2026-38930 OpenRapid RapidCMS 安全漏洞
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CVE-2025-70103 libjxl 安全漏洞
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Showing top 20 of 28 CVEs. View all on vendor page → →

IV. Related Vulnerabilities

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Same vendor: n/a

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