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Vulnerability record · CVE-2025-6881 · published 30 June 2025

CVE-2025-6881: Dlink di-8100 firmware memory buffer overflow vulnerability

Dlink · Di 8100 Firmware

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.

7.4 CVSS 4.0 High EPSS 0.98% · top 39.0% CWE-119 · Memory buffer overflowCWE-120 · Classic buffer overflow
7.4CVSS 4.0 base score, v2 9.0
0.98%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
4References, 1 tagged exploit
17 Jun 2026Last modified by NVD

Description

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.

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://vuldb.com/?ctiid.314360 Permissions Required
https://vuldb.com/?id.314360 Third Party AdvisoryVDB Entry
https://vuldb.com/?submit.603692 ExploitThird Party AdvisoryVDB Entry
https://www.dlink.com/ Product

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

9.8CVE-2025-44083Dlink di-8100 firmware improper authentication vulnerabilityAn issue in D-Link DI-8100 16.07.26A1 allows a remote attacker to bypass administrator login authenticationEPSS 0.82%8.9CVE-2026-7854Dlink di-8100 firmware memory buffer overflow vulnerabilityA security vulnerability has been detected in D-Link DI-8100 16.07.26A1. Affected by this vulnerability is the function url_rule_asp of the file /url…EPSS 1.9%8.9CVE-2026-7853Dlink di-8100 firmware memory buffer overflow vulnerabilityA weakness has been identified in D-Link DI-8100 16.07.26A1. Affected is the function sprintf of the file /auto_reboot.asp of the component HTTP Hand…EPSS 1.9%8.9CVE-2026-7248Dlink di-8100 firmware memory buffer overflow vulnerabilityA vulnerability was found in D-Link DI-8100 16.07.26A1. This affects the function tgfile_htm of the file tgfile.htm of the component CGI Endpoint. Th…EPSS 3.8%8.7CVE-2025-5228Dlink di-8100 firmware memory buffer overflow vulnerabilityA vulnerability was found in D-Link DI-8100 up to 20250523. It has been classified as critical. Affected is the function httpd_get_parm of the file /…EPSS 2.9%8.7CVE-2025-3538Dlink di-8100 firmware memory buffer overflow vulnerabilityA vulnerability was found in D-Link DI-8100 16.07.26A1. It has been rated as critical. This issue affects the function auth_asp of the file /auth.asp…EPSS 13%7.5CVE-2025-52222Dlink di-8100 firmware classic buffer overflow vulnerabilityD-Link DI-8003 v16.07.26A1, DI-8500 v16.07.26A1; DI-8003G v17.12.21A1, DI-8200G v17.12.20A1, DI-8200 v16.07.26A1, DI-8400 v16.07.26A1, DI-8004w v16.0…EPSS 0.33%7.5CVE-2025-4544Dlink di-8100 firmware memory buffer overflow vulnerabilityA vulnerability was found in D-Link DI-8100 up to 16.07.26A1 and classified as critical. This issue affects some unknown processing of the file /ddos…EPSS 11%

Source: NIST National Vulnerability Database (record CVE-2025-6881), CISA KEV, FIRST EPSS (scores of 2026-10-06). This page is refreshed as NVD updates the record.