CVE-2021-23274

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

1.21% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 68.3% of scored records. A rank, not a probability.

NVD base score

9.8 (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: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

2021-03-23 16:55Z5 YR AGO

Last updated

2024-09-16 21:58Z2 YR AGO

Reserved

2021-01-08

Assigning CNA

tibco

Record state

PUBLISHED

Severity

Critical (CVSS 9.8)

CNA CVSS vector

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

Weaknesses

• CWE-1021Improper Restriction of Rendered UI Layers or FramesBase

Data version

5.1

Document digest

4e1f1f2ca2712b0a7c1cdee619e5ab6cdf6bf71ae3b00ae446ce98e71a43f9fb

• www.tibco.comhttp://www.tibco.com/services/support/advisoriesx_refsource_CONFIRM
• www.tibco.comhttps://www.tibco.com/support/advisories/2021/03/tibco-security-advisory-march-23-2021-tibco-api-exchange-gatewayx_refsource_CONFIRM