CVE-2021-46887 json
Lack of length check vulnerability in the HW_KEYMASTER module.
published 2023-05-26 3 y ago modified 2026-06-17 4 mo ago also EUVD-2021-33537
- cvss
- 9.8
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.5%
- EPSS 0.5% chance of exploitation in 30 days, percentile 41%
- public exploits
- 0
- none known
Summary
Lack of length check vulnerability in the HW_KEYMASTER module. Successful exploitation of this vulnerability may cause out-of-bounds read.
CISA SSVC
- Exploitation
- none
- Automatable
- yes
- Technical impact
- total
- Assessed
- 21 mo ago
Exploit prediction
0.48% chance of exploitation in the next 30 days, higher than 41% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CISA ADP | 3.1 | 9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| NVD | 3.1 | 9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| CNA | 3.1 | 9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
Affected products
- Huawei EMUI
References
-
consumer.huawei.com
/en/support/bulletin/2023/5/
vendor-advisory
Sources
- CVE List CVE-2021-46887
- NVD CVE-2021-46887
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