CVE-2023-34435 File upload in WBR-6013

High 7.2 Published 8 Jul 2024 Updated 4 Nov 2025

Attackers can upload malicious firmware via crafted network packets in Realtek Jungle SDK, leading to arbitrary code execution on affected devices.

Exploited in the wild: Not known
Login needed: An administrator
Attackable: Over the internet
Victim action needed: Not needed
Fix: None listed

What is CVE-2023-34435?

CVE-2023-34435 is a high-severity vulnerability in LevelOne WBR-6013, published on 8 Jul 2024. An attacker needs administrator access to exploit it, with no action from the victim.

Official description

A firmware update vulnerability exists in the boa formUpload functionality of Realtek rtl819x Jungle SDK v3.4.11. A specially crafted network packets can lead to arbitrary firmware update. An attacker can provide a malicious file to trigger this vulnerability.

Weakness: CWE-347

Which versions are affected by CVE-2023-34435?

It affects 2 products.

Products include Level1 Wbr-6013 Firmware, Realtek Rtl819x Jungle Software Development Kit.

How do I fix CVE-2023-34435?

No fix has been published for CVE-2023-34435 yet. Limit exposure of the affected software until one is available.

Is CVE-2023-34435 being exploited?

There is no known exploitation of CVE-2023-34435 in the wild and no public exploit code.

Sources

Also known as GHSA-6fc2-jr2c-4p94.