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CVE-2025-1103— D-Link DIR-823X HTTP POST Request set_wifi_blacklists null pointer dereference

Quick assessment

Affected
D-Link DIR-823X
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.

D-Link DIR-823X是中国友讯（D-Link）公司的一款无线路由器。 D-Link DIR-823X存在安全漏洞，该漏洞源于组件HTTP POST请求处理程序的文件/goform/set_wifi_blacklists的set_wifi_blacklists函数中的参数macList会导致空指针取消引用。

CVSS 6.5 · Medium EPSS 13.02% · P96

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2025-1103

Vulnerability Information
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Vulnerability Title
D-Link DIR-823X HTTP POST Request set_wifi_blacklists null pointer dereference
Source: CVE Program / CVE List V5
Vulnerability Description
A vulnerability, which was classified as problematic, was found in D-Link DIR-823X 240126/240802. This affects the function set_wifi_blacklists of the file /goform/set_wifi_blacklists of the component HTTP POST Request Handler. The manipulation of the argument macList leads to null pointer dereference. It is possible to initiate the attack remotely. The exploit has been disclosed to the public and may be used.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
空指针解引用
Source: CVE Program / CVE List V5
Vulnerability Title
D-Link DIR-823X 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
D-Link DIR-823X是中国友讯（D-Link）公司的一款无线路由器。 D-Link DIR-823X存在安全漏洞，该漏洞源于组件HTTP POST请求处理程序的文件/goform/set_wifi_blacklists的set_wifi_blacklists函数中的参数macList会导致空指针取消引用。
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
D-Link DIR-823X 240126 -

II. Public POCs for CVE-2025-1103

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III. Intelligence Information for CVE-2025-1103

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Vendor Advisories for CVE-2025-1103 (3)

Security Blog Posts for CVE-2025-1103 (1)

Vendor Pages for CVE-2025-1103 (1)

IV. Related Vulnerabilities

Same product: DIR-823X
Same vendor: D-Link
Same weakness: CWE-476

V. Comments for CVE-2025-1103

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