CVE-2021-22437 Integer overflow in EMUI
An integer overflow in Huawei smartphones allows attackers to trigger a TOCTOU race condition, potentially leading to arbitrary code execution or privilege escalation.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2021-22437?
CVE-2021-22437 is a high-severity vulnerability in Huawei Emui, published on 25 Feb 2022. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
There is a software integer overflow leading to a TOCTOU condition in smartphones. Successful exploitation of this vulnerability may cause random address access.
Weakness: CWE-190
Which versions are affected by CVE-2021-22437?
It affects 2 products.
Products include Huawei Emui, Huawei Magic Ui.
How do I fix CVE-2021-22437?
No fix has been published for CVE-2021-22437 yet. Limit exposure of the affected software until one is available.
Is CVE-2021-22437 being exploited?
There is no known exploitation of CVE-2021-22437 in the wild and no public exploit code.
Other vulnerabilities in Huawei Emui
Sources
Also known as GHSA-rmqv-xpvq-7fm9.