What is CVE-2016-6428?

CVE-2016-6428 is a high-severity vulnerability in Cisco iOS Xr, classified under CWE-264. CVSS score: 7.8/10. Published 2016-10-06.

How severe is CVE-2016-6428?

High severity. CVSS v3 base score is 7.8 out of 10.

Vulnerability in Cisco iOS Xr

CVE-2016-6428

Cisco IOS XR 6.1.1 allows local users to execute arbitrary OS commands as root by leveraging admin privileges, aka Bug ID CSCva38349.

Published 2016-10-06 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 7.8 (High). Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.004 (27.5th percentile), scored 2026-10-02.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 27th percentile — 27.5% 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

Cisco iOS Xr — versions 6.1.1

Weakness classification (CWE)

CWE-264

References

tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20161005… (vendor-advisory, Vendor Advisory)
www.securitytracker.com/id/1036956 (vdb-entry)
www.securityfocus.com/bid/93416 (vdb-entry)

Frequently asked questions

What is CVE-2016-6428?: CVE-2016-6428 is a high-severity vulnerability in Cisco iOS Xr, classified under CWE-264. CVSS score: 7.8/10. Published 2016-10-06.
How severe is CVE-2016-6428?: High severity. CVSS v3 base score is 7.8 out of 10.