CVE-2023-6580 D-Link DIR-846 QoS POST deserialization

High 8.8 Published 7 Dec 2023 Updated 2 Aug 2024

Remote attackers can exploit unsafe deserialization in the QoS handler of D-Link DIR-846 routers to execute arbitrary code.

Exploited in the wild: Not known
Login needed: Any signed-in user
Attackable: Over the internet
Victim action needed: Not needed
Fix: None listed

What is CVE-2023-6580?

CVE-2023-6580 is a high-severity unsafe deserialization vulnerability in D-Link DIR-846, published on 7 Dec 2023. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

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.

Weakness: CWE-502

Which versions are affected by CVE-2023-6580?

It affects 1 product.

Products include Dlink Dir-846 Firmware.

How do I fix CVE-2023-6580?

No fix has been published for CVE-2023-6580 yet. Limit exposure of the affected software until one is available.

Upgrade, and only deserialise data from trusted sources or with an allow-list of types. More about Unsafe deserialization.

Is CVE-2023-6580 being exploited?

There is no known exploitation of CVE-2023-6580 in the wild and no public exploit code.

Sources

Also known as GHSA-r2mg-8788-h74v.