CVE-2026-3684

MEDIUM
Published Nov 8, 2026 Modified Nov 9, 2026 CWE-266

Description

IBM Cloud Pak for Data System 11.3.1.2 Interim Fix 001 through - 11.3.1.2 Interim Fix 002 could allow a user with administrative privileges to read and write arbitrary files on the system due to incorrect permission assignments.

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CVSS v3.1 Score

6.5
MEDIUM
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N

EPSS — Exploit Prediction

0.0029
Probability of exploitation
0.22%
Percentile rank

EPSS estimates the probability that this vulnerability will be exploited in the wild within the next 30 days. A higher score means more likely to be exploited.

Weakness Type (CWE)

CWE-266 CWE-266

References

Frequently Asked Questions

What is CVE-2026-3684? +
IBM Cloud Pak for Data System 11.3.1.2 Interim Fix 001 through - 11.3.1.2 Interim Fix 002 could allow a user with administrative privileges to read and write arbitrary files on the system due to incorrect permission assignments. It has a CVSS v3.1 base score of 6.5 (MEDIUM).
How severe is CVE-2026-3684? +
CVE-2026-3684 has a CVSS v3.1 score of 6.5 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance. The EPSS score is 0.0029, placing it in the 0th percentile for exploitation probability.
How do I check if I'm vulnerable to CVE-2026-3684? +
You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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