CVE-2021-22323
Description
There is an Integer Overflow Vulnerability in Huawei Smartphone. Successful exploitation of these vulnerabilities may escalate the permission to that of the root user.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Integer overflow in Huawei Smartphone can be exploited to escalate permission to root.
Vulnerability
CVE-2021-22323 is an integer overflow vulnerability in Huawei Smartphones. The exact component is not disclosed, but the flaw resides in the system's handling of certain integer values, which can be triggered under specific conditions. Affected versions include those with EMUI and Magic UI updates prior to the May 2021 security patch [1].
Exploitation
An attacker requires local access to the device and likely some user interaction or a specific crafted input to trigger the integer overflow. The sequence involves causing the integer overflow during a system operation, which then corrupts memory or control flow, leading to privilege escalation [1].
Impact
Successful exploitation of this integer overflow allows an attacker to escalate their privileges to that of the root user, gaining full control over the device, including the ability to read, modify, or delete any data and install arbitrary applications [1].
Mitigation
Huawei released a security update in May 2021 that fixes this vulnerability. The update is included in the May 2021 EMUI/Magic UI security bulletin. Users are advised to install the latest update for their device. No workarounds have been published [1].
AI Insight generated on May 27, 2026. Synthesized from this CVE's description and the cited reference URLs; citations are validated against the source bundle.
Affected products
2- Huawei/Smartphonedescription
Patches
0No patches discovered yet.
Vulnerability mechanics
AI mechanics synthesis has not run for this CVE yet.
References
1- consumer.huawei.com/en/support/bulletin/2021/5/mitrex_refsource_MISC
News mentions
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