Is CVE-2012-4027 being actively exploited?

CVE-2012-4027 is not currently listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.

What is the CVSS score for CVE-2012-4027?

CVE-2012-4027 has a CVSS 2.0 base score of 5.0 (MEDIUM).

CVE-2012-4027

MEDIUM · CVSS 5.0EPSS 2.5%EU EUVD

Directory traversal vulnerability in Tridium Niagara AX Framework allows remote attackers to read files outside of the intended images, nav, and px folders by leveraging incorrect permissions, as demonstrated by reading the config.bog file.

Key facts

CVSS score: 5.0 (v2.0)
Severity: MEDIUM
CVSS vector: AV:N/AC:L/Au:N/C:P/I:N/A:N
Weakness (CWE): CWE-22
EPSS score: 2.5% (85th percentile)
In CISA KEV: No
In EU EUVD: Yes (EUVD-2012-3971)
Published: July 16, 2012
NVD last modified: June 16, 2026
Status: Modified

EU Vulnerability Database (EUVD)

This vulnerability is also tracked by ENISA as EUVD-2012-3971 in the EU Vulnerability Database. Last updated in EUVD on September 16, 2024.

View on the EU Vulnerability Database

Affected products

tridium / niagara ax

References

http://www.washingtonpost.com/investigations/tridiums-niagara-framework-marvel-of-connectivity-illustrates-new-cyber-risks/2012/07/11/gJQARJL6dW_story.html(Permissions Required)
https://www.tridium.com/galleries/briefings/NiagaraAX_Framework_Software_Security_Alert.pdf(Broken Link, Vendor Advisory)

Last updated September 17, 2026 · Source: NVD, CISA KEV, FIRST.org EPSS

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