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7.4

D-Link DI-8100 Router: Remote Code Execution Through Buffer Overflow

CVE-2025-6881 · published 1 year ago
Summary

A critical security flaw in the D-Link DI-8100 router's web interface makes it possible for hackers to remotely execute malicious code. This could allow them to take control of your router and potentially access your network. D-Link has not yet released a fix, so it's a good idea to contact them for assistance or consider replacing the router until a patch is available.

What to do

The CVE record does not list a fixed version. Check the vendor's site or the advisory links below - a fix may already be released.

Affected software
VendorProductAffected versions
dlink di-8100_firmware 16.07.21
cpe:2.3:o:dlink:di-8100_firmware:16.07.21:*:*:*:*:*:*:*
Original advisory text
A vulnerability was found in D-Link DI-8100 16.07.21. It has been rated as critical. Affected by this issue is some unknown functionality of the file /pppoe_base.asp of the component jhttpd. The ma...
A vulnerability was found in D-Link DI-8100 16.07.21. It has been rated as critical. Affected by this issue is some unknown functionality of the file /pppoe_base.asp of the component jhttpd. The manipulation of the argument mschap_en leads to buffer overflow. The attack may be launched remotely. The exploit has been disclosed to the public and may be used.
References
Fix within
Internet-facing 60 days
Internal At next upgrade
  • Not known to be exploited
  • Needs hands-on effort to exploit
  • Gives an attacker partial control
Severity
7.4 High
Exploitation
<1% chance of attack within 30 days
Type
CWE-119Buffer Overflow
CWE-120Classic Buffer Overflow
Timeline
Published30 Jun 2025
Updated3 Nov 2026
First seen7 Mar 2026
Sources
CVE-2025-6881 · NVD
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