Overview
Cisco IOS, IOS XR, and IOS XE contain insufficient condition checks in the part of the code that handles Internet Key Exchange version 1 (IKEv1) security negotiation requests. contains an information disclosure vulnerability in the Internet Key Exchange version 1 (IKEv1) that could allow an attacker to retrieve memory contents. Successful exploitation could allow the attacker to retrieve memory contents, which can lead to information disclosure.
https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20160916-ikev1; https://nvd.nist.gov/vuln/detail/CVE-2016-6415
Key Details
| Property | Value |
|---|---|
| CVE ID | CVE-2016-6415 |
| Vendor / Product | Cisco — IOS, IOS XR, and IOS XE |
| NVD Published | 2016-09-19 |
| NVD Last Modified | 2026-01-12 |
| CVSS 3.1 Score | 7.5 |
| CVSS 3.1 Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N |
| Severity | HIGH |
| CWE | CWE-200 |
| CISA KEV Added | 2023-05-19 |
| CISA KEV Deadline | 2023-06-09 |
| Known Ransomware Use | No |
CVSS 3.1 Breakdown
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
None
Availability
None
Required Action
CISA BOD 22-01 Deadline: 2023-06-09.
Apply updates per vendor instructions.
Timeline
| Date | Event |
|---|---|
| 2023-05-19 | Added to CISA Known Exploited Vulnerabilities catalog |
| 2023-06-09 | CISA BOD 22-01 remediation deadline |
References
| Resource | Type |
|---|---|
| NVD — CVE-2016-6415 | Vulnerability Database |
| CISA KEV Catalog Entry | US Government |