CVE-2021-28826

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

0.23% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 14.0% of scored records. A rank, not a probability.

NVD base score

7.8 (CVSS v3.x), scored by the NVD independently of the CNA.

NVD CVSS vector

CVSS:3.1/AV:L/AC:L/PR:L/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

2021-04-14 16:20Z5 YR AGO

Last updated

2024-09-16 19:15Z1 YR AGO

Reserved

2021-03-18

Assigning CNA

tibco

Record state

PUBLISHED

Severity

High (CVSS 8.8)

CNA CVSS vector

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

Weaknesses

• CWE-863Incorrect AuthorizationClass

Data version

5.1

Document digest

23bf1ef0519827ab4065570b3cf232b9765d014f7a4db125eb14ca1cb93856ca

• www.tibco.comhttp://www.tibco.com/services/support/advisoriesx_refsource_CONFIRM
• www.tibco.comhttps://www.tibco.com/support/advisories/2021/04/tibco-security-advisory-april-14-2021-tibco-messaging-2021-28826x_refsource_CONFIRM