CVE-2021-38786

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

1.78% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 76.3% 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

2022-01-19 11:53Z4 YR AGO

Last updated

2024-08-04 01:51Z2 YR AGO

Reserved

2021-08-16

Assigning CNA

mitre

Record state

PUBLISHED

Severity

Not rated by the issuing CNA

CNA CVSS vector

Not published by the issuing CNA

Weaknesses

• CWE-476NULL Pointer DereferenceBase

Data version

5.1

Document digest

9a7de723eaf7d051205a773dbd55dc06b18fd797dbbf9a38ed1f8ac4b67a6a83

• www.allwinnertech.comhttps://www.allwinnertech.com/index.php?c=product&a=index&id=92x_refsource_MISC
• github.comhttps://github.com/pokerfacett/MY_CVE_CREDIT/blob/master/Allwinner%20R818%20SoC%EF%BC%9AMedia%20vdecoder%20has%20Null%20Pointer%20Dereference%20Vulnerability.mdx_refsource_MISC
• www.cnvd.org.cnhttps://www.cnvd.org.cn/flaw/show/CNVD-2021-49173x_refsource_MISC
• vul.wangan.comhttps://vul.wangan.com/a/CNVD-2021-49173x_refsource_MISC