CVE-2025-4883— D-Link DI-8100 Connection Limit Page ctxz.asp ctxz_asp stack-based overflow
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I. Basic Information for CVE-2025-4883
Vulnerability Information
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Vulnerability Title
D-Link DI-8100 Connection Limit Page ctxz.asp ctxz_asp stack-based overflow
Source: NVD (National Vulnerability Database)
Vulnerability Description
A vulnerability was found in D-Link DI-8100 16.07.26A1. It has been declared as critical. This vulnerability affects the function ctxz_asp of the file /ctxz.asp of the component Connection Limit Page. The manipulation of the argument def/defTcp/defUdp/defIcmp/defOther leads to stack-based buffer overflow. The attack can be initiated remotely. The exploit has been disclosed to the public and may be used.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Source: NVD (National Vulnerability Database)
Vulnerability Type
栈缓冲区溢出
Source: NVD (National Vulnerability Database)
Vulnerability Title
D-Link DI-8100 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
D-Link DI-8100是中国友讯（D-Link）公司的一款专为中小型网络环境设计的无线宽带路由器。 D-Link DI-8100 16.07.26A1版本存在安全漏洞，该漏洞源于对文件/ctx.asp中参数def/defTcp/defUdp/defIcmp/defOther的错误操作导致栈缓冲区溢出。
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
II. Public POCs for CVE-2025-4883
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Same Patch Batch · D-Link · 2025-05-18 · 5 CVEs total
| CVE-2025-4901 | 4.3 MEDIUM | D-Link DI-7003GV2 HTTP Endpoint state_view.data sub_41E304 information disclosure |
| CVE-2025-4860 | 2.4 LOW | D-Link DAP-2695 Static Pool Settings Page adv_dhcps.php cross site scripting |
| CVE-2025-4859 | 2.4 LOW | D-Link DAP-2695 MAC Bypass Settings Page adv_macbypass.php cross site scripting |
| CVE-2025-4858 | 2.4 LOW | D-Link DAP-2695 ARP Spoofing Prevention Page adv_arpspoofing.php cross site scripting |
IV. Related Vulnerabilities
Same product: DI-8100
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D-Link DI-8100 HTTP Request tggl.asp tggl_asp buffer overflo - CVE-2026-7854
D-Link DI-8100 POST Parameter url_rule.asp url_rule_asp buff - CVE-2026-7853
D-Link DI-8100 HTTP auto_reboot.asp sprintf buffer overflow
Same vendor: D-Link
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D-Link DNS-320 network_mgr.cgi cgi_upnp_edit os command inje - CVE-2026-8260
D-Link DCS-935L HNAP Service hnap_service SetDeviceSettings - CVE-2026-7857
D-Link DI-8100 CGI user_group.asp sprintf buffer overflow
Same weakness: CWE-121
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