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CVE-2023-22922

Quick assessment

Affected
Zyxel NBG-418N v2 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 NBG-418N v2是中国合勤（Zyxel）公司的一款无线路由器。 Zyxel NBG-418N v2 firmware V1.00之前版本存在安全漏洞。攻击者利用该漏洞可以通过发送特制的数据包来引发拒绝服务条件。

CVSS 7.5 · High EPSS 0.93% · P59
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I. Basic Information for CVE-2023-22922

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
A buffer overflow vulnerability in the Zyxel NBG-418N v2 firmware versions prior to V1.00(AARP.14)C0 could allow a remote unauthenticated attacker to cause DoS conditions by sending crafted packets if Telnet is enabled on a vulnerable device.
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:H
Source: CVE Program / CVE List V5
Vulnerability Type
未进行输入大小检查的缓冲区拷贝(传统缓冲区溢出)
Source: CVE Program / CVE List V5
Vulnerability Title
Zyxel NBG-418N v2 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Zyxel NBG-418N v2是中国合勤（Zyxel）公司的一款无线路由器。 Zyxel NBG-418N v2 firmware V1.00之前版本存在安全漏洞。攻击者利用该漏洞可以通过发送特制的数据包来引发拒绝服务条件。
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 NBG-418N v2 firmware < V1.00(AARP.14)C0 -

II. Public POCs for CVE-2023-22922

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III. Intelligence Information for CVE-2023-22922

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Other References for CVE-2023-22922 (1)

Same Patch Batch · Zyxel · 2023-05-01 · 5 CVEs total

CVE-2023-22919 8.8 HIGH Zyxel NBG6604 操作系统命令注入漏洞
CVE-2023-22921 7.5 HIGH Zyxel NBG-418N v2 跨站脚本漏洞
CVE-2023-22923 6.5 MEDIUM Zyxel NBG-418N v2 格式化字符串错误漏洞
CVE-2023-22924 4.9 MEDIUM Zyxel NBG-418N v2 安全漏洞

IV. Related Vulnerabilities

Same product: NBG-418N v2 firmware
Same vendor: Zyxel
Same weakness: CWE-120

V. Comments for CVE-2023-22922

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