CVE-2021-33586

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

0.89% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 56.8% of scored records. A rank, not a probability.

NVD base score

4.3 (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:L/I:N/A:N

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

2021-05-27 05:00Z5 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-732Incorrect Permission Assignment for Critical ResourceClass

Data version

5.1

Document digest

2fae0b9b78080f15d43d30bb9cf4bfa87ea8087e1974aac77e1745922c5a0539

• docs.inspircd.orghttps://docs.inspircd.org/security/2021-01/x_refsource_MISC
• github.comhttps://github.com/inspircd/inspircd/commit/4350a11c663b0d75f8119743bffb7736d87abd4dx_refsource_MISC
• security.gentoo.orgGLSA-202107-22https://security.gentoo.org/glsa/202107-22vendor-advisoryx_refsource_GENTOO