CVE-2025-6881— D-Link DI-8100 jhttpd pppoe_base.asp buffer overflow
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I. Basic Information for CVE-2025-6881
Vulnerability Information
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Vulnerability Title
D-Link DI-8100 jhttpd pppoe_base.asp buffer overflow
Source: NVD (National Vulnerability Database)
Vulnerability Description
A vulnerability was found in D-Link DI-8100 16.07.21. It has been rated as critical. Affected by this issue is some unknown functionality of the file /pppoe_base.asp of the component jhttpd. The manipulation of the argument mschap_en leads to buffer overflow. The attack may be launched 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:L/UI:N/S:U/C:H/I:H/A:H
Source: NVD (National Vulnerability Database)
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: 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 16.07.21版本存在安全漏洞，该漏洞源于文件/pppoe_base.asp中参数mschap_en的错误操作导致缓冲区溢出。
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-2025-6881
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Same Patch Batch · D-Link · 2025-06-30 · 8 CVEs total
| CVE-2025-6882 | 8.8 HIGH | D-Link DIR-513 formSetWanPPTP buffer overflow |
| CVE-2025-6899 | 6.3 MEDIUM | D-Link DI-7300G+/DI-8200G msp_info.htm os command injection |
| CVE-2025-6898 | 6.3 MEDIUM | D-Link DI-7300G+ in proxy_client.asp os command injection |
| CVE-2025-6896 | 6.3 MEDIUM | D-Link DI-7300G+ wget_test.asp os command injection |
| CVE-2025-6897 | 5.5 MEDIUM | D-Link DI-7300G+ httpd_debug.asp os command injection |
| CVE-2025-6932 | 3.7 LOW | D-Link DCS-7517 Qlync Password Generation httpd g_F_n_GenPassForQlync hard-coded password |
| CVE-2025-6931 | 3.7 LOW | D-Link DCS-6517/DCS-7517 Root Password Generation httpd generate_pass_from_mac entropy |
IV. Related Vulnerabilities
Same product: DI-8100
- CVE-2026-7857
D-Link DI-8100 CGI user_group.asp sprintf buffer overflow - CVE-2026-7856
D-Link DI-8100 Web Management url_member.asp buffer overflow - CVE-2026-7855
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
- CVE-2026-8273
D-Link DNS-320 system_mgr.cgi cgi_merge_user os command inje - CVE-2026-8272
D-Link DNS-320 webfile_mgr.cgi chown os command injection - CVE-2026-8271
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-120
- CVE-2026-8260
D-Link DCS-935L HNAP Service hnap_service SetDeviceSettings - CVE-2026-8137
Totolink X5000R formDdns sub_458E40 buffer overflow - CVE-2026-6691
MongoDB C Driver Cyrus SASL Canonicalization Buffer Overflow - CVE-2026-7857
D-Link DI-8100 CGI user_group.asp sprintf buffer overflow - CVE-2026-7856
D-Link DI-8100 Web Management url_member.asp buffer overflow
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