CVE-2021-33587

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

2.27% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 81.5% 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

Moderate. Red Hat's rating for its own products, not a CVSS rating.

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

2021-05-28 00:00Z5 YR AGO

Last updated

2024-08-03 23:50Z2 YR AGO

Reserved

2021-05-27

Assigning CNA

mitre

Record state

PUBLISHED

Severity

Not rated by the issuing CNA

CNA CVSS vector

Not published by the issuing CNA

Weaknesses

• CWE-400Uncontrolled Resource ConsumptionClass

Data version

5.1

Document digest

3cb0f29e416beea292044c03974c183b880c897a8c262eb16423c36a61539c32

• github.comhttps://github.com/fb55/css-what/releases/tag/v5.0.1
• security.netapp.comhttps://security.netapp.com/advisory/ntap-20210706-0007/
• lists.debian.org[debian-lts-announce] 20230303 [SECURITY] [DLA 3350-1] node-css-what security updatehttps://lists.debian.org/debian-lts-announce/2023/03/msg00001.htmlmailing-list