CVE-2023-49073 Memory corruption in WBR-6013

High 7.2 Published 8 Jul 2024 Updated 4 Nov 2025

A stack-based buffer overflow in the Realtek rtl819x Jungle SDK allows remote attackers to execute arbitrary code via crafted HTTP requests.

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-2023-49073?

CVE-2023-49073 is a high-severity memory corruption 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 stack-based buffer overflow vulnerability exists in the boa formFilter functionality of Realtek rtl819x Jungle SDK v3.4.11. A specially crafted series of HTTP requests can lead to arbitrary code execution. An attacker can send a sequence of requests to trigger this vulnerability.

Weakness: CWE-787, CWE-121

Which versions are affected by CVE-2023-49073?

It affects 2 products.

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

How do I fix CVE-2023-49073?

No fix has been published for CVE-2023-49073 yet. Limit exposure of the affected software until one is available.

Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.

Is CVE-2023-49073 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2023-49073 exists.

Sources

Also known as GHSA-78wj-996p-5487.