CVE-2025-11339: D-Link Di-7100g c1 Firmware

High severity, CVSS 8.8. EPSS: 1% chance of exploitation in the next 30 days.

A vulnerability has been found in D-Link DI-7100G C1 up to 20250928. This issue affects the function sub_4BD4F8 of the file /webchat/hi_block.asp of the component jhttpd. The manipulation of the argument popupId leads to buffer overflow. The attack can be initiated remotely. The exploit has been disclosed to the public and may be used.

Affected products

• D-Link Di-7100g c1 Firmware: version 2025-09-28 only

Published 2025-10-06. Last modified 2026-10-09.