CVE-2026-91003

HIGH CVSS 4.0: 8.5
Updated Sep 15, 2026
D-Link
Parameter Value
CVSS 8.5 (HIGH)
Type CWE-119 (Buffer Overflow), CWE-121 (Stack-based Buffer Overflow)
Vendor D-Link
Public PoC No

A flaw has been found in D-Link DI-8300 16.07. The affected element is the function rzgl_asp of the file /rzgl.asp of the component CGI Service. This manipulation of the argument redirct_url causes stack-based buffer overflow.

Remote exploitation of the attack is possible. The exploit has been published and may be used.

Attack Parameters

Attack Vector
Network
Can be exploited remotely
Attack Complexity
Low
Easy to exploit
Attack Requirements
None
No additional conditions
Privileges Required
High
Admin privileges needed
User Interaction
None
No user interaction needed

Impact Assessment

Confidentiality
High
Complete data leak
Integrity
High
Complete data modification
Availability
High
Complete denial of service

CVSS Vector v4.0