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CVE-2021-28824

25
FAUCET Score

CVE-2021-28824 is a local privilege escalation vulnerability in the Windows Installation component of TIBCO ActiveSpaces Community, Developer, and Enterprise Editions versions 4.5.0 and below. A low-privileged attacker with local access can insert and execute malicious software with elevated privileges due to insufficient access restrictions on installation files/folders. This vulnerability carries a high CVSS score of 8.8, indicating a significant impact on confidentiality, integrity, and availability with low attack complexity. Currently, there is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
< 4.6.0CPE matchmatch criteria
cpe:2.3:a:tibco:activespaces:*:*:*:*:community:*:*:*
< 4.6.0CPE matchmatch criteria
cpe:2.3:a:tibco:activespaces:*:*:*:*:developer:*:*:*
< 4.6.0CPE matchmatch criteria
cpe:2.3:a:tibco:activespaces:*:*:*:*:enterprise:*:*:*

CVSS Data

CVSS version used by this source: 3.1

8.8HIGH

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

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
CHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
2.0
Impact Score
6.0
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.22%
Probability of exploitation in next 30 days
EPSS Percentile
12.5%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0022 is in the 42nd percentile among its peer group of 16,994 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.2 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

tibco.com / services/support/advisories
Vendor Advisory