CVE-2026-7854

D-Link DI-8100 POST Parameter url_rule.asp url_rule_asp buffer overflow

Published: May 5, 2026Updated: Jul 24, 2026 Sources: CVE List NVD BDUCWE-119

9.8CRITICAL

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.

No summary for this CVE yet.

CVSS Vector Breakdown

Exploitability

AV:NAttack Vector

Network

AC:LAttack Complexity

Low

PR:NPrivileges Required

None

UI:NUser Interaction

None

Scope

S:UScope

Unchanged

Impact

C:HConfidentiality

High

I:HIntegrity

High

A:HAvailability

High

Open in CVSS calculator →

Weaknesses

CWE-119 CWE-120

Affected Products

D-Link Corp.

commercial·TWaka dlink, d-link international, d-link corporation

di-8100 firmware

Networking Infrastructure

DI-8100

Networking Infrastructure

D-Link

commercial·TW

DI-8100

Networking Infrastructure

Exploitability

Official Patch Available

Is your org exposed to CVE-2026-7854?Request an assessment to establish which checks are appropriate for your systems. Check my exposure

Attack Graph

Products CVE Techniques Tactics

Click technique nodes for MITRE ATT&CK details · drag to pan · Ctrl/⌘ + scroll to zoom, or go fullscreen.

MITRE ATT&CK

2 techniques

Initial Access

Privilege Escalation

View detailed technique mapping

References

https://github.com/draw-ctf/report/blob/main/DI-8100/url_rule_asp_overflow.md

github.com

https://vuldb.com/submit/807838

vuldb.com

https://vuldb.com/vuln/361131

vuldb.com

and 2 more references View all →

Unlock Complete Vulnerability Intelligence

Get the full picture for CVE-2026-7854 and every CVE in our database. Create a free account — no credit card required.

Create Free Account

Plain-language analysis

Impact assessment and exploitation scenario in plain English

Attack graph visualization

Interactive attack path and kill chain mapping

Exploit details & PoC links

ExploitDB, Metasploit, GitHub PoCs with direct links

Nuclei scanner templates

Ready-to-use vulnerability scanner templates

Full remediation guide

Patch instructions, workarounds, and compliance impact

Interactive AI chat

Ask questions about this vulnerability in natural language

Related vulnerabilities

Semantically similar CVEs and attack patterns

REST API & MCP access

Integrate vulnerability data into your workflows