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CVE-2022-4873— Stack based overflow on Netcomm router models NF20MESH, NF20, and NL1902

Quick assessment

Affected
Netcomm NF20
Exploitation
High exploitation probability; assess promptly
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Netcomm NF20和Netcomm NF20MESH都是澳大利亚Netcomm公司的一款路由器。 Netcomm路由器存在安全漏洞，该漏洞源于其sessionKey参数允许攻击者通过提供特定的字节数覆盖栈上的指令指针实现基于栈的缓冲区溢出并在已知位置使应用程序崩溃。以下型号受到影响：NF20MESH、NF20和NL1902。

AI Predicted 7.8 Difficulty: Easy EPSS 7.17% · P94
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I. Basic Information for CVE-2022-4873

Vulnerability Information
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Vulnerability Title
Stack based overflow on Netcomm router models NF20MESH, NF20, and NL1902
Source: CVE Program / CVE List V5
Vulnerability Description
On Netcomm router models NF20MESH, NF20, and NL1902 a stack based buffer overflow affects the sessionKey parameter. By providing a specific number of bytes, the instruction pointer is able to be overwritten on the stack and crashes the application at a known location.
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
Netcomm路由器 缓冲区错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Netcomm NF20和Netcomm NF20MESH都是澳大利亚Netcomm公司的一款路由器。 Netcomm路由器存在安全漏洞，该漏洞源于其sessionKey参数允许攻击者通过提供特定的字节数覆盖栈上的指令指针实现基于栈的缓冲区溢出并在已知位置使应用程序崩溃。以下型号受到影响：NF20MESH、NF20和NL1902。
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
Netcomm NF20 R6B025 -
Netcomm NF20MESH R6B025 -
Netcomm NL1902 R6B025 -

II. Public POCs for CVE-2022-4873

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III. Intelligence Information for CVE-2022-4873

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Other References for CVE-2022-4873 (1)

IV. Related Vulnerabilities

Same product: NF20
Same vendor: Netcomm

V. Comments for CVE-2022-4873

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