Buffer overflow in Huawei Emui
CVE-2021-22394
There is a buffer overflow vulnerability in smartphones. Successful exploitation of this vulnerability may cause DoS of the apps during Multi-Screen Collaboration.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 9.1 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H.
EPSS exploit prediction
EPSS: 0.008 (56.3th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 56th percentile — 56.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.008 · newest: 0.008 · change: 0.000
Affected products
- Huawei Emui — versions 11.0.0, 10.1.1, 10.1.0
- Huawei Harmonyos — versions 2.0
- Huawei Magic Ui — versions 4.0.0, 3.1.1, 3.1.0
- Huawei Magic Ui — versions 3.1.0, 3.1.1, 4.0.0
Weakness classification (CWE)
References
- consumer.huawei.com/en/support/bulletin/2021/7/ (Vendor Advisory)
- device.harmonyos.com/en/docs/security/update/security-bulletins-phones-202108-0… (Vendor Advisory)
Frequently asked questions
- What is CVE-2021-22394?
- CVE-2021-22394 is a critical-severity vulnerability in Huawei Emui, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 9.1/10. Published 2022-02-25.
- How severe is CVE-2021-22394?
- Critical severity. CVSS v3 base score is 9.1 out of 10.