Vulnerability in Cisco Identity Services Engine Software

CVE-2014-3276

Cisco Identity Services Engine (ISE) 1.2(.1 patch 2) and earlier does not properly handle deadlock conditions during reception of crafted RADIUS accounting packets from multiple NAS devices, which allows remote authenticated users to cause a denial of service (RADIUS outage) by sourcing these packets from two origins, aka Bug ID CSCuo56780.

Published 2014-05-26 · last modified 2026-06-17.

CVSS v2 metric

CVSS v2 base score 4.0 (Medium). Vector: AV:N/AC:L/Au:S/C:N/I:N/A:P. This CVE predates CVSS v3 and has no v3 score from NVD.

EPSS exploit prediction

EPSS: 0.022 (81.8th percentile), scored 2026-10-02.

Low probability of exploitation in the next 30 days, but still tracked. 82nd percentile — 81.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.022 · newest: 0.022 · change: 0.000

Affected products

Cisco Identity Services Engine Software — versions 1.0, 1.1

Weakness classification (CWE)

CWE-399

References

tools.cisco.com/security/center/content/CiscoSecurityNotice/CVE-2014-3276 (vendor-advisory, Vendor Advisory)
tools.cisco.com/security/center/viewAlert.x (Vendor Advisory)
www.securitytracker.com/id/1030274 (VDB Entry, Third Party Advisory, vdb-entry)