CVE-2021-22853

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

1.04% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 63.9% of scored records. A rank, not a probability.

NVD base score

5.4 (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:L

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

2021-02-17 13:30Z5 YR AGO

Last updated

2024-09-17 04:04Z2 YR AGO

Reserved

2021-01-06

Assigning CNA

twcert

Record state

PUBLISHED

Severity

Medium (CVSS 5.4)

CNA CVSS vector

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

Weaknesses

• CWE-284Improper Access ControlPillar

Data version

5.1

Document digest

323517119f3d802e8d347b848d45a3a3b8fd6f742169a730aab507f6cc6265e8

• www.twcert.org.twhttps://www.twcert.org.tw/tw/cp-132-4403-8eb68-1.htmlx_refsource_MISC
• www.chtsecurity.comhttps://www.chtsecurity.com/news/d334641f-2b28-4eab-a5ed-c6ec6740557ex_refsource_CONFIRM