CVE-2025-5622: D-Link Dir-816 Firmware

Critical severity, CVSS 9.8. EPSS: 2.5% chance of exploitation in the next 30 days.

A vulnerability was found in D-Link DIR-816 1.10CNB05 and classified as critical. Affected by this issue is the function wirelessApcli_5g of the file /goform/wirelessApcli_5g. The manipulation of the argument apcli_mode_5g/apcli_enc_5g/apcli_default_key_5g leads to stack-based buffer overflow. The attack may be launched remotely. The exploit has been disclosed to the public and may be used. This vulnerability only affects products that are no longer supported by the maintainer.

Affected products

• D-Link Dir-816 Firmware: version 1.10cnb05 only

Published 2025-06-05. Last modified 2026-06-17.