CVE-2019-18931 Memory corruption in n/a

High 8.8 Published 13 Nov 2019 Updated 5 Aug 2024

Attackers can execute arbitrary code on Western Digital My Cloud EX2 Ultra devices by exploiting a buffer overflow in firmware via crafted web requests.

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-2019-18931?

CVE-2019-18931 is a high-severity memory corruption vulnerability in n/a, published on 13 Nov 2019. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

Western Digital My Cloud EX2 Ultra firmware 2.31.195 allows a Buffer Overflow with Extended Instruction Pointer (EIP) control via crafted GET/POST parameters.

Weakness: CWE-120

Which versions are affected by CVE-2019-18931?

It affects 1 product.

Products include Western Digital My Cloud Ex2 Ultra Firmware.

How do I fix CVE-2019-18931?

No fix has been published for CVE-2019-18931 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-2019-18931 being exploited?

There is no known exploitation of CVE-2019-18931 in the wild and no public exploit code.

Sources

Also known as GHSA-3f5p-w7xp-rch2.