CVE-2023-28769 Memory corruption in DX5401-B0 firmware
Remote unauthenticated attackers can execute OS commands or cause denial-of-service via a buffer overflow in the Zyxel DX5401-B0 web server.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2023-28769?
CVE-2023-28769 is a critical memory corruption vulnerability in Zyxel DX5401-B0 firmware, published on 27 Apr 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
The buffer overflow vulnerability in the library “libclinkc.so” of the web server “zhttpd” in Zyxel DX5401-B0 firmware versions prior to V5.17(ABYO.1)C0 could allow a remote unauthenticated attacker to execute some OS commands or to cause denial-of-service (DoS) conditions on a vulnerable device.
Weakness: CWE-120
Which versions are affected by CVE-2023-28769?
It affects 1 product.
Products include Zyxel Dx5401-B0 Firmware.
How do I fix CVE-2023-28769?
No fix has been published for CVE-2023-28769 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-2023-28769 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2023-28769 exists.
Public exploit code: 1 Metasploit module.
Other vulnerabilities in Zyxel DX5401-B0 firmware
Sources
Also known as GHSA-xg39-26cw-gxj9.