What is CVE-2016-5991?

CVE-2016-5991 is a medium-severity vulnerability in IBM Sterling Connect\, classified under CWE-264. CVSS score: 4.5/10. Published 2016-11-25.

How severe is CVE-2016-5991?

Medium severity. CVSS v3 base score is 4.5 out of 10.

Vulnerability in IBM Sterling Connect\

CVE-2016-5991

IBM Sterling Connect:Direct 4.5.00, 4.5.01, 4.6.0 before 4.6.0.6 iFix008, and 4.7.0 before 4.7.0.4 on Windows allows local users to gain privileges via unspecified vectors.

Published 2016-11-25 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 4.5 (Medium). Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:L.

EPSS exploit prediction

EPSS: 0.003 (17.2th percentile), scored 2026-10-01.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 17th percentile — 17.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: 0.000

Affected products

IBM Sterling Connect\ — versions direct
IBM Sterling Connect\:direct — versions 4.5, 4.5.01, 4.6

Weakness classification (CWE)

CWE-264

References

www.securityfocus.com/bid/94515 (vdb-entry)
www-01.ibm.com/support/docview.wss (Patch, Vendor Advisory)
www-01.ibm.com/support/docview.wss (vendor-advisory, Patch, Vendor Advisory)

Frequently asked questions

What is CVE-2016-5991?: CVE-2016-5991 is a medium-severity vulnerability in IBM Sterling Connect\, classified under CWE-264. CVSS score: 4.5/10. Published 2016-11-25.
How severe is CVE-2016-5991?: Medium severity. CVSS v3 base score is 4.5 out of 10.