CVE-2026-7851highCWE-119CWE-121

CVE-2026-7851: high-severity vulnerability in D-Link DI-8100

D-Link DI-8100 yyxz.asp sprintf stack-based 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.

41Vexday Risk Score

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

ssvc Attendcvss 8.6epss 4.1%
A vulnerability was identified in D-Link DI-8100 16.07.26A1. This affects the function sprintf of the file yyxz.asp. The manipulation of the argument ID leads to stack-based buffer overflow. The attack is possible to be carried out remotely. The exploit is publicly available and might be used.
CVSS:4.0/AV:N/AC:L/AT:N/PR:H/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%