CVE-2021-25328

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

3.94% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 89.5% of scored records. A rank, not a probability.

NVD base score

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

NVD CVSS vector

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

2021-04-09 12:19Z5 YR AGO

Last updated

2024-08-03 20:03Z2 YR AGO

Reserved

2021-01-19

Assigning CNA

mitre

Record state

PUBLISHED

Severity

Not rated by the issuing CNA

CNA CVSS vector

Not published by the issuing CNA

Weaknesses

• CWE-120Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')Base

Data version

5.1

Document digest

39e91dd56c47ca9fec0224cf20fc87de5ffadf333dd14246956f478184590b52

• s3curityb3ast.github.iohttps://s3curityb3ast.github.io/KSA-Dev-011.mdx_refsource_MISC
• seclists.org20210504 KSA-Dev-0010:CVE-2021-25328:Authenticated Stack Overflow in Skyworth RN510 mesh Devicehttp://seclists.org/fulldisclosure/2021/May/5mailing-listx_refsource_FULLDISC
• packetstormsecurity.comhttp://packetstormsecurity.com/files/162450/Shenzhen-Skyworth-RN510-Buffer-Overflow.htmlx_refsource_MISC