Buffer overflow in Huawei Emui
CVE-2021-40029
There is a Buffer overflow vulnerability due to a boundary error with the Samba server in the file management module in smartphones. Successful exploitation of this vulnerability may affect function stability.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.008 (54.5th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 55th percentile — 54.5% 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 12.0.0, 11.0.1, 11.0.0
- Huawei Harmonyos — versions 2.0
- Huawei Magic Ui — versions 4.0.0, 3.1.1, 3.1.0
- Huawei Magic Ui — versions 3.0.0, 3.1.0, 3.1.1
Weakness classification (CWE)
References
- consumer.huawei.com/en/support/bulletin/2022/1/ (Vendor Advisory)
- device.harmonyos.com/en/docs/security/update/security-bulletins-202201-00000012… (Vendor Advisory)
Frequently asked questions
- What is CVE-2021-40029?
- CVE-2021-40029 is a high-severity vulnerability in Huawei Emui, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 7.5/10. Published 2022-01-10.
- How severe is CVE-2021-40029?
- High severity. CVSS v3 base score is 7.5 out of 10.