CVE-2021-40019
Out-of-bounds heap read vulnerability in the HW_KEYMASTER module. Successful exploitation of this...
Out-of-bounds heap read vulnerability in the HW_KEYMASTER module. Successful exploitation of this vulnerability may cause out-of-bounds access.
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
- None
- Availability
- High
Exploit likelihood
What each source reports
NVD Score used
Out-of-bounds heap read vulnerability in the HW_KEYMASTER module. Successful exploitation of this vulnerability may cause out-of-bounds access.
- Record
CVE-2021-40019- CVSS 3.1
- 9.1 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H - Weakness
- CWE-125
- Updated
- 2026-11-02
CVE List No score
Out-of-bounds heap read vulnerability in the HW_KEYMASTER module. Successful exploitation of this vulnerability may cause out-of-bounds access.
- Record
CVE-2021-40019- Updated
- 2026-11-02
EUVDEUVD-2021-27209 No score
Out-of-bounds heap read vulnerability in the HW_KEYMASTER module. Successful exploitation of this vulnerability may cause out-of-bounds access.
- Record
EUVD-2021-27209- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-84h3-cchg-46pm
Out-of-bounds heap read vulnerability in the HW_KEYMASTER module. Successful exploitation of this...
Out-of-bounds heap read vulnerability in the HW_KEYMASTER module. Successful exploitation of this vulnerability may cause out-of-bounds access.
- Record
GHSA-84h3-cchg-46pm- CVSS 3.1
- 9.1 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H - Weakness
- CWE-125
- 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-2021-40019 is a critical vulnerability (CVSS 9.1) in Huawei Emui, published September 16, 2022. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.62%, the 49th percentile. No source names a fixed version.