D-Link DI-8300 16.07 CGI Service /rzgl.asp rzgl_asp redirct_url stack-based overflow

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
8.3$0-$5k2.52+

Summaryinfo

A vulnerability categorized as very critical has been discovered in D-Link DI-8300 16.07. The impacted element is the function rzgl_asp of the file /rzgl.asp of the component CGI Service. Such manipulation of the argument redirct_url leads to stack-based overflow. This vulnerability is documented as CVE-2026-91003. The attack can be executed remotely. Additionally, an exploit exists.

Detailsinfo

A vulnerability was found in D-Link DI-8300 16.07. It has been rated as very critical. Affected by this issue is the function rzgl_asp of the file /rzgl.asp of the component CGI Service. The manipulation of the argument redirct_url with an unknown input leads to a stack-based overflow vulnerability. Using CWE to declare the problem leads to CWE-121. A stack-based buffer overflow condition is a condition where the buffer being overwritten is allocated on the stack (i.e., is a local variable or, rarely, a parameter to a function). Impacted is confidentiality, integrity, and availability.

The advisory is available at github.com. This vulnerability is handled as CVE-2026-91003. The exploitation is known to be easy. The attack may be launched remotely. The exploitation needs additional levels of successful authentication. Technical details as well as a public exploit are known. The structure of the vulnerability defines a possible price range of USD $0-$5k at the moment (estimation calculated on 09/14/2026).

The exploit is available at github.com. It is declared as proof-of-concept. By approaching the search of inurl:rzgl.asp it is possible to find vulnerable targets with Google Hacking.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 9.1
VulDB Meta Temp Score: 8.3

VulDB Base Score: 9.1
VulDB Temp Score: 8.3
VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Stack-based overflow
CWE: CWE-121 / CWE-119
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Access: Public
Status: Proof-of-Concept
Programming Language: 🔒
Download: 🔒
Google Hack: 🔒
Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔒

Timelineinfo

09/14/2026 Advisory disclosed
09/14/2026 +0 days VulDB entry created
09/14/2026 +0 days VulDB entry last update

Sourcesinfo

Vendor: dlink.com

Advisory: github.com
Status: Not defined

CVE: CVE-2026-91003 (🔒)
GCVE (CVE): GCVE-0-2026-91003
GCVE (VulDB): GCVE-100-403586
scip Labs: https://www.scip.ch/en/?labs.20161013

Entryinfo

Created: 09/14/2026 17:52
Changes: 09/14/2026 17:52 (57)
Complete: 🔍
Submitter: Xray
Cache ID: 216::103

Submitinfo

Accepted

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