What is CVE-2016-0321?

CVE-2016-0321 is a medium-severity vulnerability in IBM Personal Communications, classified under Information Disclosure. CVSS score: 6.2/10. Published 2016-07-17.

How severe is CVE-2016-0321?

Medium severity. CVSS v3 base score is 6.2 out of 10.

Information disclosure in IBM Personal Communications

CVE-2016-0321

IBM Personal Communications (aka PCOMM) 6.x before 6.0.17 and 12.x before 12.0.0.1 does not properly restrict credential extraction, which allows local users to discover passwords by leveraging access to the victim account and executing a PowerShell script.

Vulnerability class: Information Disclosure

Published 2016-07-17 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 6.2 (Medium). Vector: CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.

EPSS exploit prediction

EPSS: 0.004 (28.6th percentile), scored 2026-09-29.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 29th percentile — 28.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: 0.000

Affected products

IBM Personal Communications — versions 12.0.0, 6.0.0, 6.0.1

Weakness classification (CWE)

CWE-200 — Information Disclosure

References

www-01.ibm.com/support/docview.wss (Vendor Advisory)
www.securityfocus.com/bid/91751 (vdb-entry)
www-01.ibm.com/support/docview.wss (vendor-advisory)

Frequently asked questions

What is CVE-2016-0321?: CVE-2016-0321 is a medium-severity vulnerability in IBM Personal Communications, classified under Information Disclosure. CVSS score: 6.2/10. Published 2016-07-17.
How severe is CVE-2016-0321?: Medium severity. CVSS v3 base score is 6.2 out of 10.