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CVE-2016-6415: Cisco IOS, IOS XR, and IOS XE IKEv1 Information Disclosure Vulnerability
Cisco IOS, IOS XR, and IOS XE · in CISA KEV since 2023-05-19
2023-05-19added to KEV
2023-06-09federal remediation due date
87.69%EPSS exploit probability (30 days) 99.8th percentile
7.5 HIGHCVSS 3.1
Unknownknown ransomware use
2,433days from NVD publication to KEV
What it is
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.
Required action (CISA)
Apply updates per vendor instructions.
| CWE | CWE-200 |
|---|---|
| CVSS vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N |
| NVD published | 2016-09-19 (Analyzed) |
Original records: NVD · CISA KEV · JSON: /api/cve/CVE-2016-6415.json · all KEV CVEs
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Get the full file: Exploited Vulnerabilities Brief – September 2026 ($29): this month's KEV additions ranked by EPSS, ransomware use and due date, ready to hand to a patch team. Checkout by Polar.