CVE-2021-40873

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

1.31% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 68.7% 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

2021-11-10 22:48Z4 YR AGO

Last updated

2024-08-04 02:51Z2 YR AGO

Reserved

2021-09-13

Assigning CNA

mitre

Record state

PUBLISHED

Severity

Not rated by the issuing CNA

CNA CVSS vector

Not published by the issuing CNA

Weaknesses

• CWE-415Double FreeVariant

Data version

5.1

Document digest

cd7cd814baf33c52199798abf236ed408cb63fc1cf330db9bf31ac2afab66ca2

• industrial.softing.comhttps://industrial.softing.com/x_refsource_MISC
• industrial.softing.comhttps://industrial.softing.com/fileadmin/sof-files/pdf/ia/support/Security_Bulletin_CVE-2021-40873.pdfx_refsource_MISC