CVE-2026-7248: Buffer Overflow in D-Link DI-8100
CVE-2026-7248 is a critical buffer overflow vulnerability in the D-Link DI-8100 router firmware version 16.07.26A1. The flaw exists in the CGI endpoint component, specifically in the tgfile_htm function handling the 'fn' argument. This vulnerability can be exploited remotely without authentication and does not require user interaction. Although an exploit has been publicly disclosed, there are no confirmed reports of exploitation in the wild. No official patch or remediation guidance has been provided by the vendor at this time.
AI Analysis
Technical Summary
This vulnerability involves a buffer overflow triggered by improper handling of the 'fn' argument in the tgfile_htm function of the tgfile.htm CGI endpoint in D-Link DI-8100 firmware version 16.07.26A1. The flaw allows remote attackers to execute code or cause denial of service due to memory corruption. The CVSS 4.0 base score is 9.3, indicating critical severity with network attack vector, no required privileges or user interaction, and high impact on confidentiality, integrity, and availability. No vendor patch or official remediation has been documented.
Potential Impact
Successful exploitation of this vulnerability could allow unauthenticated remote attackers to execute arbitrary code or cause a denial of service on affected devices. This compromises the confidentiality, integrity, and availability of the device and potentially the network it serves. The vulnerability affects a specific firmware version of the D-Link DI-8100 router. There are no confirmed reports of active exploitation in the wild.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is released, consider restricting network access to the affected device's management interface to trusted sources only. Monitor for any updates from D-Link regarding patches or mitigations. Do not rely on generic mitigations unless specifically recommended by the vendor.
CVE-2026-7248: Buffer Overflow in D-Link DI-8100
Description
CVE-2026-7248 is a critical buffer overflow vulnerability in the D-Link DI-8100 router firmware version 16.07.26A1. The flaw exists in the CGI endpoint component, specifically in the tgfile_htm function handling the 'fn' argument. This vulnerability can be exploited remotely without authentication and does not require user interaction. Although an exploit has been publicly disclosed, there are no confirmed reports of exploitation in the wild. No official patch or remediation guidance has been provided by the vendor at this time.
CVSS v4.0
Score 9.3critical
Affected software
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability involves a buffer overflow triggered by improper handling of the 'fn' argument in the tgfile_htm function of the tgfile.htm CGI endpoint in D-Link DI-8100 firmware version 16.07.26A1. The flaw allows remote attackers to execute code or cause denial of service due to memory corruption. The CVSS 4.0 base score is 9.3, indicating critical severity with network attack vector, no required privileges or user interaction, and high impact on confidentiality, integrity, and availability. No vendor patch or official remediation has been documented.
Potential Impact
Successful exploitation of this vulnerability could allow unauthenticated remote attackers to execute arbitrary code or cause a denial of service on affected devices. This compromises the confidentiality, integrity, and availability of the device and potentially the network it serves. The vulnerability affects a specific firmware version of the D-Link DI-8100 router. There are no confirmed reports of active exploitation in the wild.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is released, consider restricting network access to the affected device's management interface to trusted sources only. Monitor for any updates from D-Link regarding patches or mitigations. Do not rely on generic mitigations unless specifically recommended by the vendor.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- VulDB
- Date Reserved
- 2026-04-27T17:44:14.172Z
- Cvss Version
- 4.0
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 69f0788fcbff5d8610e928f4
Added to database: 4/28/2026, 9:06:23 AM
Last enriched: 5/6/2026, 2:16:51 AM
Last updated: 6/12/2026, 9:58:21 AM
Views: 130
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