CVE-2021-46887
Lack of length check vulnerability in the HW_KEYMASTER module. Successful exploitation of this...
Lack of length check vulnerability in the HW_KEYMASTER module. Successful exploitation of this vulnerability may cause out-of-bounds read.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Exploit likelihood
What each source reports
NVD Score used
Lack of length check vulnerability in the HW_KEYMASTER module. Successful exploitation of this vulnerability may cause out-of-bounds read.
- Record
CVE-2021-46887- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Updated
- 2026-11-02
CVE List
Lack of length check vulnerability in the HW_KEYMASTER module. Successful exploitation of this vulnerability may cause out-of-bounds read.
- Record
CVE-2021-46887- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Updated
- 2026-11-02
EUVDEUVD-2021-33537
Lack of length check vulnerability in the HW_KEYMASTER module. Successful exploitation of this vulnerability may cause out-of-bounds read.
- Record
EUVD-2021-33537- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Updated
- 2026-11-03
GitHub AdvisoriesGHSA-mh78-7xw8-jc7w
Lack of length check vulnerability in the HW_KEYMASTER module. Successful exploitation of this...
Lack of length check vulnerability in the HW_KEYMASTER module. Successful exploitation of this vulnerability may cause out-of-bounds read.
- Record
GHSA-mh78-7xw8-jc7w- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Updated
- 2026-11-02
Affected products
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2021-46887 is a critical vulnerability (CVSS 9.8) in Huawei Emui, published May 26, 2023. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.48%, the 41st percentile. No source names a fixed version.