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CVE-2021-44158— ASUS RT-AX56U Router - Stack-based buffer overflow

Quick assessment

Affected
ASUS RT-AX56U
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.

ASUS RT-AX56U是中国台湾华硕（ASUS）公司的一款无线路由器。 ASUS RT-AX56U Wi-Fi路由器存在安全漏洞，该漏洞源于对httpd参数长度的验证不正确。攻击者可利用该漏洞启动任意代码执行来控制系统或中断服务。

CVSS 8.0 · High EPSS 0.68% · P51

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2021-44158

Vulnerability Information
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Vulnerability Title
ASUS RT-AX56U Router - Stack-based buffer overflow
Source: CVE Program / CVE List V5
Vulnerability Description
ASUS RT-AX56U Wi-Fi Router is vulnerable to stack-based buffer overflow due to improper validation for httpd parameter length. An authenticated local area network attacker can launch arbitrary code execution to control the system or disrupt service.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
栈缓冲区溢出
Source: CVE Program / CVE List V5
Vulnerability Title
ASUS RT-AX56U 缓冲区错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
ASUS RT-AX56U是中国台湾华硕（ASUS）公司的一款无线路由器。 ASUS RT-AX56U Wi-Fi路由器存在安全漏洞，该漏洞源于对httpd参数长度的验证不正确。攻击者可利用该漏洞启动任意代码执行来控制系统或中断服务。
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
ASUS RT-AX56U 3.0.0.4.386.44266 -

II. Public POCs for CVE-2021-44158

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III. Intelligence Information for CVE-2021-44158

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Other References for CVE-2021-44158 (1)

IV. Related Vulnerabilities

Same product: RT-AX56U
Same vendor: ASUS
Same weakness: CWE-121

V. Comments for CVE-2021-44158

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