CVE-2026-7857 HIGH

CVE-2026-7857: D-Link DI-8100 CGI user_group.asp sprintf buffer overflow

Vendor D-Link
Product DI-8100
Weakness CWE-120
Published May 5, 2026
Last update May 5, 2026
View on NVD All CVEs

CVSS base score

8.6/10
Attack vector Network
Attack complexity Low
Privileges required High
User interaction None
Confidentiality —
Integrity —

CVSS vector

CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P

What the vulnerability does

01Description

A vulnerability has been found in D-Link DI-8100 16.07.26A1. This vulnerability affects the function sprintf of the file /user_group.asp of the component CGI Handler. The manipulation leads to buffer overflow. The attack may be initiated remotely. The exploit has been disclosed to the public and may be used.

Key dates

02Disclosure timeline

May 5, 2026 CVE published
May 5, 2026 Record updated