CVE-2021-46786 Memory corruption in EMUI
Attackers can exploit an audio module flaw in Huawei EMUI and HarmonyOS to trigger out-of-bounds memory access, potentially leading to code execution or privilege escalation.
- 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-2021-46786?
CVE-2021-46786 is a critical memory corruption vulnerability in Huawei Emui, published on 13 May 2022. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
The audio module has a vulnerability in verifying the parameters passed by the application space.Successful exploitation of this vulnerability may cause out-of-bounds memory access.
Weakness: CWE-119
Which versions are affected by CVE-2021-46786?
It affects 3 products.
Products include Huawei Emui, Huawei Harmonyos, Huawei Magic Ui.
How do I fix CVE-2021-46786?
No fix has been published for CVE-2021-46786 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-2021-46786 being exploited?
There is no known exploitation of CVE-2021-46786 in the wild and no public exploit code.
Other vulnerabilities in Huawei Emui
Sources
Also known as GHSA-gf86-696w-hj6m.