CVE-2021-40052

Exploitation

Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.

SSVC decision

Not assessed by CISA

EPSS probability

0.77% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 53.0% of scored records. A rank, not a probability.

NVD base score

7.5 (CVSS v3.x), scored by the NVD independently of the CNA.

NVD CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

NVD analysis status

Modified. NVD last modified this record on 2026-06-17.

Red Hat severity

No Red Hat rating. Red Hat rates the CVEs that affect its products.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

Published

2022-03-07 13:50Z4 YR AGO

Last updated

2024-08-04 02:27Z2 YR AGO

Reserved

2021-08-23

Assigning CNA

huawei

Record state

PUBLISHED

Severity

Not rated by the issuing CNA

CNA CVSS vector

Not published by the issuing CNA

Weaknesses

• CWE-131Incorrect Calculation of Buffer SizeBase

Data version

5.1

Document digest

34533fd5339cee023d1d9925c627d470eef8faf86712f842259c7fe058e95d81

• consumer.huawei.comhttps://consumer.huawei.com/en/support/bulletin/2022/3/x_refsource_MISC
• device.harmonyos.comhttps://device.harmonyos.com/en/docs/security/update/security-bulletins-phones-202208-0000001363876177x_refsource_MISC