CVE-2021-40000 Memory corruption in HarmonyOS
An out-of-bounds write in the Bluetooth module allows remote attackers to execute malicious commands on Huawei HarmonyOS devices.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2021-40000?
CVE-2021-40000 is a high-severity memory corruption vulnerability in Huawei Harmonyos, published on 7 Jan 2022. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
The Bluetooth module has an out-of-bounds write vulnerability. Successful exploitation of this vulnerability may result in malicious command execution at the remote end.
Weakness: CWE-787
Which versions are affected by CVE-2021-40000?
It affects 1 product.
Products include Huawei Harmonyos.
How do I fix CVE-2021-40000?
No fix has been published for CVE-2021-40000 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-2021-40000 being exploited?
There is no known exploitation of CVE-2021-40000 in the wild and no public exploit code.
Other vulnerabilities in Huawei Harmonyos
Sources
Also known as GHSA-ccr6-c6x3-wvwv.