What’s Vulnerable › Vulnerabilities

CVE-2025-4883: D-Link DI-8100 Connection Limit Page ctxz.asp ctxz_asp stack-based overflow

• Severity: high (CVSS 7.2 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 8.9% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2025-05-18 · updated 2026-06-17
• Weakness: CWE-119

Description

A vulnerability was found in D-Link DI-8100 16.07.26A1. It has been declared as critical. This vulnerability affects the function ctxz_asp of the file /ctxz.asp of the component Connection Limit Page. The manipulation of the argument def/defTcp/defUdp/defIcmp/defOther leads to stack-based buffer overflow. The attack can be initiated remotely. The exploit has been disclosed to the public and may be used.

Affected products

• Dlink Di-8100G Firmware: 16.07.26a1

References

• https://github.com/Yhuanhuan01/DI-8100_Vulnerability_Report/blob/main/DI-8100-Vulnerability_Report_ctxz.md
• https://vuldb.com/?ctiid.309436
• https://vuldb.com/?id.309436
• https://vuldb.com/?submit.576392
• https://www.dlink.com/
• https://github.com/Yhuanhuan01/DI-8100_Vulnerability_Report/blob/main/DI-8100-Vulnerability_Report_ctxz.md

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