Vulnerability Intelligence Report
Cisco IOS, IOS XR, and IOS XE IKEv1 Information Disclosure Vulnerability
CVE-2016-6415
The server IKEv1 implementation in Cisco IOS 12.2 through 12.4 and 15.0 through 15.6, IOS XE through 3.18S, IOS XR 4.3.x and 5.0.x through 5.2.x, and PIX before 7.0 allows remote attackers to obtain sensitive information from device memory via a Security Association (SA) negotiation request, aka Bug IDs CSCvb29204 and CSCvb36055 or BENIGNCERTAIN.
CISA KEV
SSVC: Active Exploitation
Automatable
CVSS Base Score
7.5
HIGH
Exploitability:3.9
Impact Score:3.6
EPSS Probability:87.69%
Executive Threat Verdict
Evaluating...
Evaluating Threat Landscape...
Assessing known weaponization, exploitation telemetry, and federal advisories.
Attack Surface
—
Authentication
—
Weaponization
—
SSVC Action
—
Weaknesses (CWE)
CWE-200 ↗CWE-200 Exposure of Sensitive Information to an Unauthorized Actor
Affected Products & Versions
| Vendor | Product | Affected Versions |
|---|---|---|
| cisco | ios | all |
| cisco | ios_xe | all |
| cisco | ios_xr | all |
References & Technical Advisories
No reference links found.
Threat Intelligence Signals
Identity & Timeline
| Status | PUBLISHED |
| Assigning Authority | Cisco Systems, Inc. · Hosted Service · USA |
| Reserved | 2016-07-26T00:00:00 |
| Published | 2016-09-19T01:00:00 |
| Patch Date | 2016-09-16 |
| Last Updated | 2026-01-12T21:16:07 |
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