Is CVE-2021-28824 in the CISA KEV catalog?

No. CVE-2021-28824 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2021-28824?

CVE-2021-28824 has a CVSS v3 base score of 8.8 (HIGH).

What is the EPSS score for CVE-2021-28824?

CVE-2021-28824 has an EPSS score of 0.22% (12th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2021-28824?

Upgrade activespaces to 4.6.0 or later.

CVE & CISA-KEV Catalog

CVE-2021-28824

HIGH

8.8

CVSS v3

NVD

Description

The Windows Installation component of TIBCO Software Inc.'s TIBCO ActiveSpaces - Community Edition, TIBCO ActiveSpaces - Developer Edition, and TIBCO ActiveSpaces - Enterprise Edition contains a vulnerability that theoretically allows a low privileged attacker with local access on some versions of the Windows operating system to insert malicious software. The affected component can be abused to execute the malicious software inserted by the attacker with the elevated privileges of the component. This vulnerability results from a lack of access restrictions on certain files and/or folders in the installation. Affected releases are TIBCO Software Inc.'s TIBCO ActiveSpaces - Community Edition: versions 4.5.0 and below, TIBCO ActiveSpaces - Developer Edition: versions 4.5.0 and below, and TIBCO ActiveSpaces - Enterprise Edition: versions 4.5.0 and below.

CWE-863Incorrect Authorization

How to fix

Remediation Available

activespacesNVD

Affected:< 4.6.0Fixed in:4.6.0CVE-2021-28824derived from NVD

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorLocal

Attack ComplexityLow

Privileges RequiredLow

User InteractionNone

ScopeChanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

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

Exploit Intelligence

0.22%probability of exploitation in 30 days

12thpercentile

Low risk: more likely to be exploited than 12% of all known CVEs.

References

Vendor Advisory1

tibco.com

Related Vulnerabilities

Other CWE-863 (Incorrect Authorization) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2023-22518	Critical	9.8	100%	KEV + Ransom	Fix
CVE-2023-38035	Critical	9.8	100%	KEV + Ransom	-
CVE-2022-46169	Critical	9.8	100%	KEV	Fix
CVE-2025-29927	Critical	9.1	100%	-	Fix
CVE-2024-38856	Critical	9.8	99%	KEV	Fix
CVE-2020-36289	Medium	5.3	99%	-	Fix

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2024-11-21.