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CVE-2026-7854— D-Link DI-8100 POST Parameter url_rule.asp url_rule_asp buffer overflow

CVSS 9.8 · Critical EPSS 0.07% · P22
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I. Basic Information for CVE-2026-7854

Vulnerability Information
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Vulnerability Title
D-Link DI-8100 POST Parameter url_rule.asp url_rule_asp buffer overflow
Source: NVD (National Vulnerability Database)
Vulnerability Description
A security vulnerability has been detected in D-Link DI-8100 16.07.26A1. Affected by this vulnerability is the function url_rule_asp of the file /url_rule.asp of the component POST Parameter Handler. Such manipulation leads to buffer overflow. It is possible to launch the attack remotely. The exploit has been disclosed publicly and may be used.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/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 缓冲区错误漏洞
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版本存在缓冲区错误漏洞，该漏洞源于POST Parameter Handler组件中文件/url_rule.asp的函数url_rule_asp导致缓冲区溢出，可能导致远程攻击。
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)

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Affected Products

VendorProductAffected VersionsCPESubscribe
D-LinkDI-8100 16.07.26A1 -

II. Public POCs for CVE-2026-7854

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Qwen3.6-35B-A3B · 11424 chars
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III. Intelligence Information for CVE-2026-7854

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Same Patch Batch · D-Link · 2026-05-05 · 6 CVEs total

CVE-2026-78539.8 CRITICALD-Link DI-8100 HTTP auto_reboot.asp sprintf buffer overflow
CVE-2026-78558.8 HIGHD-Link DI-8100 HTTP Request tggl.asp tggl_asp buffer overflow
CVE-2026-78577.2 HIGHD-Link DI-8100 CGI user_group.asp sprintf buffer overflow
CVE-2026-78567.2 HIGHD-Link DI-8100 Web Management url_member.asp buffer overflow
CVE-2026-78517.2 HIGHD-Link DI-8100 yyxz.asp sprintf stack-based overflow

IV. Related Vulnerabilities

Same product: DI-8100
Same vendor: D-Link
Same weakness: CWE-120

V. Comments for CVE-2026-7854

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