Out-of-bounds write in EMUI;Magic UI
Priority MEDIUM 40CWE-787Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- None · High · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA.
Summary
There is a heap base buffer overflow vulnerability in some Huawei smartphone.Successful exploitation of this vulnerability can cause heap overflow and memory overwriting when the system incorrectly processes the update file.
Why it matters now
EPSS 0.00721 54th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | EMUI;Magic UI | EMUI 11.0.0, EMUI 10.1.1, EMUI 10.1.0, EMUI 10.0.0, EMUI 9.1.1, EMUI 9.1.0; Magic UI 4.0.0, Magic UI 3.1.1, Magic UI 3.1.0, Magic UI 3.0.0, Magic UI 2.1.1 | — | No fix listed | CNA |
- EMUI;Magic UI Vendor— Affected EMUI 11.0.0, EMUI 10.1.1, EMUI 10.1.0, EMUI 10.0.0, EMUI 9.1.1, EMUI 9.1.0; Magic UI 4.0.0, Magic UI 3.1.1, Magic UI 3.1.0, Magic UI 3.0.0, Magic UI 2.1.1 Fixed in — No fix listed CNA
CPE configurations NVD · 11
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:huawei:emui:9.1.0:*:*:*:*:*:*:* | 9.1.0 | Vulnerable | Huawei |
| cpe:2.3:o:huawei:emui:9.1.1:*:*:*:*:*:*:* | 9.1.1 | Vulnerable | Huawei |
| cpe:2.3:o:huawei:emui:10.0.0:*:*:*:*:*:*:* | 10.0.0 | Vulnerable | Huawei |
| cpe:2.3:o:huawei:emui:10.1.0:*:*:*:*:*:*:* | 10.1.0 | Vulnerable | Huawei |
| cpe:2.3:o:huawei:emui:10.1.1:*:*:*:*:*:*:* | 10.1.1 | Vulnerable | Huawei |
| cpe:2.3:o:huawei:emui:11.0.0:*:*:*:*:*:*:* | 11.0.0 | Vulnerable | Huawei |
| cpe:2.3:o:huawei:magic_ui:2.1.1:*:*:*:*:*:*:* | 2.1.1 | Vulnerable | Huawei |
| cpe:2.3:o:huawei:magic_ui:3.0.0:*:*:*:*:*:*:* | 3.0.0 | Vulnerable | Huawei |
| cpe:2.3:o:huawei:magic_ui:3.1.0:*:*:*:*:*:*:* | 3.1.0 | Vulnerable | Huawei |
| cpe:2.3:o:huawei:magic_ui:3.1.1:*:*:*:*:*:*:* | 3.1.1 | Vulnerable | Huawei |
- cpe:2.3:o:huawei:emui:9.1.0:*:*:*:*:*:*:* Versions 9.1.0 Vulnerable ·Huawei
- cpe:2.3:o:huawei:emui:9.1.1:*:*:*:*:*:*:* Versions 9.1.1 Vulnerable ·Huawei
- cpe:2.3:o:huawei:emui:10.0.0:*:*:*:*:*:*:* Versions 10.0.0 Vulnerable ·Huawei
- cpe:2.3:o:huawei:emui:10.1.0:*:*:*:*:*:*:* Versions 10.1.0 Vulnerable ·Huawei
- cpe:2.3:o:huawei:emui:10.1.1:*:*:*:*:*:*:* Versions 10.1.1 Vulnerable ·Huawei
- cpe:2.3:o:huawei:emui:11.0.0:*:*:*:*:*:*:* Versions 11.0.0 Vulnerable ·Huawei
- cpe:2.3:o:huawei:magic_ui:2.1.1:*:*:*:*:*:*:* Versions 2.1.1 Vulnerable ·Huawei
- cpe:2.3:o:huawei:magic_ui:3.0.0:*:*:*:*:*:*:* Versions 3.0.0 Vulnerable ·Huawei
- cpe:2.3:o:huawei:magic_ui:3.1.0:*:*:*:*:*:*:* Versions 3.1.0 Vulnerable ·Huawei
- cpe:2.3:o:huawei:magic_ui:3.1.1:*:*:*:*:*:*:* Versions 3.1.1 Vulnerable ·Huawei
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2020-9142
- 2026-10-03 Alias added: GHSA-w82f-48jf-c4v4
References
More Huawei Emui vulnerabilities
- TI-2021-17252 Vulnerability of writing data to an arbitrary address in the HW_KEYMASTER module. CVSS 3.1HIGH 7.5
- TI-2022-21903 Deserialization of untrusted data in Huawei HarmonyOS CVSS 3.1CRITICAL 9.8
- TI-2022-21900 Deserialization of untrusted data in Huawei HarmonyOS CVSS 3.1CRITICAL 9.8
- TI-2022-21899 Deserialization of untrusted data in Huawei HarmonyOS CVSS 3.1CRITICAL 9.8
- TI-2022-19984 Out-of-bounds read in Huawei HarmonyOS CVSS 3.1CRITICAL 9.8
- TI-2022-19982 Out-of-bounds write in Huawei HarmonyOS CVSS 3.1CRITICAL 9.8
Sources
- CVE-2020-9142 · CVE Program
- CVE-2020-9142 · NVD
- FIRST EPSS
- GHSA-w82f-48jf-c4v4 · GitHub Advisory Database · CC BY 4.0
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