CVE-2026-7851: Stack-based Buffer Overflow in D-Link DI-8100
CVE-2026-7851 is a high-severity stack-based buffer overflow vulnerability in the D-Link DI-8100 router firmware version 16. 07. 26A1. The flaw exists in the sprintf function within the yyxz. asp file, where manipulation of the ID argument can lead to a buffer overflow. This vulnerability is remotely exploitable without user interaction and requires high privileges. Although an exploit is publicly available, there are no known exploits in the wild at this time. No official patch or remediation guidance has been provided by the vendor yet.
AI Analysis
Technical Summary
This vulnerability affects the D-Link DI-8100 router firmware 16.07.26A1. It arises from improper handling of the ID argument in the sprintf function in the yyxz.asp file, resulting in a stack-based buffer overflow. The vulnerability can be triggered remotely, does not require user interaction, and requires high privileges. The CVSS 4.0 base score is 8.6, reflecting high severity. No vendor advisory or patch is currently available, and the vendor has not indicated any remediation level.
Potential Impact
Successful exploitation of this vulnerability could allow an attacker with high privileges to execute arbitrary code remotely on the affected device due to the stack-based buffer overflow. This could lead to compromise of the device's integrity and availability. However, there are no 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. Since no official fix or workaround has been published, users should monitor vendor communications for updates. Until a patch is available, restricting access to the affected device's management interface and limiting high-privilege user access may reduce exposure.
CVE-2026-7851: Stack-based Buffer Overflow in D-Link DI-8100
Description
CVE-2026-7851 is a high-severity stack-based buffer overflow vulnerability in the D-Link DI-8100 router firmware version 16. 07. 26A1. The flaw exists in the sprintf function within the yyxz. asp file, where manipulation of the ID argument can lead to a buffer overflow. This vulnerability is remotely exploitable without user interaction and requires high privileges. Although an exploit is publicly available, there are no known exploits in the wild at this time. No official patch or remediation guidance has been provided by the vendor yet.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability affects the D-Link DI-8100 router firmware 16.07.26A1. It arises from improper handling of the ID argument in the sprintf function in the yyxz.asp file, resulting in a stack-based buffer overflow. The vulnerability can be triggered remotely, does not require user interaction, and requires high privileges. The CVSS 4.0 base score is 8.6, reflecting high severity. No vendor advisory or patch is currently available, and the vendor has not indicated any remediation level.
Potential Impact
Successful exploitation of this vulnerability could allow an attacker with high privileges to execute arbitrary code remotely on the affected device due to the stack-based buffer overflow. This could lead to compromise of the device's integrity and availability. However, there are no 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. Since no official fix or workaround has been published, users should monitor vendor communications for updates. Until a patch is available, restricting access to the affected device's management interface and limiting high-privilege user access may reduce exposure.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- VulDB
- Date Reserved
- 2026-05-05T11:17:33.955Z
- Cvss Version
- 4.0
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 69fa2e1dcbff5d8610171ce4
Added to database: 5/5/2026, 5:51:25 PM
Last enriched: 5/5/2026, 6:06:52 PM
Last updated: 5/5/2026, 7:17:00 PM
Views: 2
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