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CVE-2022-38546

Quick assessment

Affected
Zyxel NBG7510 firmware
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.

Zyxel NBG7510是中国合勤（Zyxel）公司的一款无线路由器。 Zyxel NBG7510 V1.00(ABZY.3)C0之前版本存在安全漏洞，该漏洞源于DNS配置错误，允许未经身份验证的攻击者在设备切换到AP模式时访问DNS服务器。

CVSS 5.3 · Medium EPSS 0.62% · P47

Possible ATT&CK Techniques 1 AI

T1046 · Network Service Discovery
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I. Basic Information for CVE-2022-38546

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
A DNS misconfiguration was found in Zyxel NBG7510 firmware versions prior to V1.00(ABZY.3)C0, which could allow an unauthenticated attacker to access the DNS server when the device is switched to the AP mode.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
访问控制不恰当
Source: CVE Program / CVE List V5
Vulnerability Title
Zyxel NBG7510 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Zyxel NBG7510是中国合勤（Zyxel）公司的一款无线路由器。 Zyxel NBG7510 V1.00(ABZY.3)C0之前版本存在安全漏洞，该漏洞源于DNS配置错误，允许未经身份验证的攻击者在设备切换到AP模式时访问DNS服务器。
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
Zyxel NBG7510 firmware < V1.00(ABZY.3)C0 -

II. Public POCs for CVE-2022-38546

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III. Intelligence Information for CVE-2022-38546

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Other References for CVE-2022-38546 (1)

IV. Related Vulnerabilities

Same vendor: Zyxel
Same weakness: CWE-284

V. Comments for CVE-2022-38546

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