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CVE-2026-10206: Stack-based Buffer Overflow in D-Link DI-8400

0
High
VulnerabilityCVE-2026-10206cvecve-2026-10206
Published: Mon Jun 01 2026 (06/01/2026, 00:15:08 UTC)
Source: CVE Database V5
Vendor/Project: D-Link
Product: DI-8400

Description

CVE-2026-10206 is a high-severity stack-based buffer overflow vulnerability affecting the D-Link DI-8400 device up to firmware version 16. 07. 26A1. The flaw exists in an unspecified function within the /dbsrv. asp file, triggered by manipulation of the 'str' argument. This vulnerability allows remote attackers to potentially execute arbitrary code without user interaction or privileges. Although an exploit is publicly available, there are no confirmed reports of exploitation in the wild. No official patch or remediation guidance has been provided by the vendor as of the publication date.

CVSS v4.0

Score 8.7high

Attack Vector
Network
Attack Complexity
Low
Attack Requirements
None
Privileges Required
Low
User Interaction
None
Vuln. Confidentiality
High
Vuln. Integrity
High
Vuln. Availability
High
Subsq. Confidentiality
None
Subsq. Integrity
None
Subsq. Availability
None
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P

AI-Powered Analysis

Machine-generated threat intelligence

AILast updated: 06/01/2026, 00:33:27 UTC

Technical Analysis

This vulnerability involves a stack-based buffer overflow in the D-Link DI-8400 router firmware (up to version 16.07.26A1) within an unknown function in the /dbsrv.asp file. The issue is triggered by manipulating the 'str' argument, leading to memory corruption. The vulnerability can be exploited remotely without authentication or user interaction, as indicated by the CVSS vector. The exploit code is publicly available, increasing the risk of exploitation. However, no vendor patch or official remediation has been disclosed yet.

Potential Impact

Successful exploitation of this vulnerability could allow remote attackers to execute arbitrary code on the affected device, potentially leading to full compromise of the router. This could impact network security and device integrity. The CVSS score of 8.7 reflects the high impact and ease of exploitation. There are no confirmed reports of active exploitation in the wild at this time.

Mitigation Recommendations

Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is released, users should consider limiting network exposure of the affected device and monitor for any unusual activity. No official vendor mitigation or workaround has been provided.

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Technical Details

Data Version
5.2
Assigner Short Name
VulDB
Date Reserved
2026-05-31T06:40:45.989Z
Cvss Version
4.0
State
PUBLISHED
Remediation Level
null

Threat ID: 6a1ccfdfe29bf47b5076cc9f

Added to database: 6/1/2026, 12:18:39 AM

Last enriched: 6/1/2026, 12:33:27 AM

Last updated: 6/1/2026, 2:30:03 AM

Views: 12

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