CVE-2026-7854criticalCWE-119CWE-120

CVE-2026-7854: critical vulnerability in D-Link DI-8100

D-Link DI-8100 POST Parameter url_rule.asp url_rule_asp buffer overflow

Published · Updated

Follow this CVE+ Monitor DI-8100

E-mail alert when it lands in KEV, gets a public PoC or its score goes up.

48Vexday Risk Score

No sign of exploitation. It has a public proof of concept.

ssvc Attendcvss 9.3epss 5.9%
A 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_rule.asp of the component POST Parameter Handler. Such manipulation leads to buffer overflow. It is possible to launch the attack remotely. The exploit has been disclosed publicly and may be used.
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P
Affected products
D-Link · DI-8100
⚠ Public resources, to assess the exposure of systems you control or are authorized to test. Test only with authorization.
Related CVEs — D-Link DI-8100

In the same product, most dangerous first.

CVE-2025-10440MEDIUMD-Link DI-8100/DI-8100G/DI-8200/DI-8200G/DI-8003/DI-8003G jhttpd usb_paswd.asp sub_4621DC os command injectionEPSS 13.4%CVE-2025-3538HIGHD-Link DI-8100 jhttpd auth.asp auth_asp stack-based overflowEPSS 13.2%CVE-2025-4544HIGHD-Link DI-8100 jhttpd ddos.asp stack-based overflowEPSS 11.8%CVE-2025-4883HIGHD-Link DI-8100 Connection Limit Page ctxz.asp ctxz_asp stack-based overflowEPSS 8.9%CVE-2024-7436MEDIUMD-Link DI-8100 msp_info.htm msp_info_htm command injectionEPSS 7.8%CVE-2025-7762HIGHD-Link DI-8100 HTTP Request menu_nat_more.asp stack-based overflowEPSS 6.7%