CVE-2023-47856 Memory corruption in WBR-6013
A stack-based buffer overflow in Realtek router SDK allows remote code execution via crafted network 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-2023-47856?
CVE-2023-47856 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 set_RadvdPrefixParam functionality of Realtek rtl819x Jungle SDK v3.4.11. A specially crafted series of network requests can lead to remote code execution. An attacker can send a sequence of requests to trigger this vulnerability.
Which versions are affected by CVE-2023-47856?
It affects 2 products.
Products include Level1 Wbr-6013 Firmware, Realtek Rtl819x Jungle Software Development Kit.
How do I fix CVE-2023-47856?
No fix has been published for CVE-2023-47856 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-2023-47856 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2023-47856 exists.
Other vulnerabilities in LevelOne WBR-6013
Sources
Also known as GHSA-76gm-vjp3-ccm7.