CVE-2026-7248: Buffer Overflow in D-Link DI-8100
A critical buffer overflow vulnerability exists in the D-Link DI-8100 firmware version 16. 07. 26A1, specifically in the CGI Endpoint component's tgfile. htm file via the tgfile_htm function. The vulnerability is triggered by manipulating the 'fn' argument, allowing remote attackers to cause a buffer overflow. The vulnerability has a high CVSS 4. 0 score of 9. 3 and an exploit has been publicly disclosed, though no known exploits in the wild have been reported. No official patch or remediation guidance has been provided by the vendor as of the publication date.
AI Analysis
Technical Summary
CVE-2026-7248 is a remote buffer overflow vulnerability in the D-Link DI-8100 router firmware version 16.07.26A1. The flaw resides in the tgfile_htm function of the tgfile.htm CGI Endpoint component, where improper handling of the 'fn' argument allows an attacker to overflow a buffer. This vulnerability can be exploited remotely without authentication, leading to potential high-impact consequences such as arbitrary code execution or denial of service. The vulnerability has a CVSS 4.0 base score of 9.3, indicating critical severity. Although an exploit has been publicly disclosed, there is no vendor-provided patch or official remediation information available at this time.
Potential Impact
The vulnerability allows remote attackers to cause a buffer overflow by manipulating the 'fn' argument in the CGI Endpoint of the affected device. This can lead to severe impacts including potential arbitrary code execution or denial of service on the D-Link DI-8100 device running firmware version 16.07.26A1. The CVSS score of 9.3 reflects the critical nature of this vulnerability with no required privileges or user interaction for exploitation.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is released, consider limiting network exposure of the affected device, such as restricting access to trusted networks only. Monitor for any updates from D-Link regarding patches or mitigations. Avoid relying on generic mitigations as no vendor guidance is currently available.
CVE-2026-7248: Buffer Overflow in D-Link DI-8100
Description
A critical buffer overflow vulnerability exists in the D-Link DI-8100 firmware version 16. 07. 26A1, specifically in the CGI Endpoint component's tgfile. htm file via the tgfile_htm function. The vulnerability is triggered by manipulating the 'fn' argument, allowing remote attackers to cause a buffer overflow. The vulnerability has a high CVSS 4. 0 score of 9. 3 and an exploit has been publicly disclosed, though no known exploits in the wild have been reported. No official patch or remediation guidance has been provided by the vendor as of the publication date.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-7248 is a remote buffer overflow vulnerability in the D-Link DI-8100 router firmware version 16.07.26A1. The flaw resides in the tgfile_htm function of the tgfile.htm CGI Endpoint component, where improper handling of the 'fn' argument allows an attacker to overflow a buffer. This vulnerability can be exploited remotely without authentication, leading to potential high-impact consequences such as arbitrary code execution or denial of service. The vulnerability has a CVSS 4.0 base score of 9.3, indicating critical severity. Although an exploit has been publicly disclosed, there is no vendor-provided patch or official remediation information available at this time.
Potential Impact
The vulnerability allows remote attackers to cause a buffer overflow by manipulating the 'fn' argument in the CGI Endpoint of the affected device. This can lead to severe impacts including potential arbitrary code execution or denial of service on the D-Link DI-8100 device running firmware version 16.07.26A1. The CVSS score of 9.3 reflects the critical nature of this vulnerability with no required privileges or user interaction for exploitation.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is released, consider limiting network exposure of the affected device, such as restricting access to trusted networks only. Monitor for any updates from D-Link regarding patches or mitigations. Avoid relying on generic mitigations as no vendor guidance is currently available.
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: 4/28/2026, 9:21:22 AM
Last updated: 4/28/2026, 10:10:58 AM
Views: 7
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