CVE-2023-6580: D-Link Dir-846 Firmware

High severity, CVSS 8.8. EPSS: 2.3% chance of exploitation in the next 30 days.

A vulnerability, which was classified as critical, was found in D-Link DIR-846 FW100A53DBR. This affects an unknown part of the file /HNAP1/ of the component QoS POST Handler. The manipulation of the argument smartqos_express_devices/smartqos_normal_devices leads to deserialization. It is possible to initiate the attack remotely. The exploit has been disclosed to the public and may be used. The identifier VDB-247161 was assigned to this vulnerability. NOTE: The vendor was contacted early about this disclosure but did not respond in any way.

Affected products

• D-Link Dir-846 Firmware: version 100a53dbr only

Published 2023-12-07. Last modified 2026-06-17.