CVE-2016-6415 — Cisco IOS, IOS XR, and IOS XE IKEv1 Information Disclosure Vulnerability
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...
Vulnerability details
- CVE ID
- CVE-2016-6415
- Vulnerability
- Cisco IOS, IOS XR, and IOS XE IKEv1 Information Disclosure Vulnerability
- Vendor
- Cisco
- Affected products
- Cisco: IOS, IOS XR, and IOS XE
- Severity
- HIGH
- Exploitation status
- Actively exploited in the wild (CISA KEV)
- Published
- 2023-05-19
Remediation guidance
CVE-2016-6415 is in CISA's Known Exploited Vulnerabilities (KEV) catalog — U.S. federal civilian agencies are required to remediate it under Binding Operational Directive 22-01. Treat it as a priority for every environment.
Apply the vendor's official security update for Cisco the affected product as soon as possible. Where a patch is unavailable, apply vendor mitigations or isolate/segment exposed systems.
Hunt for indicators of compromise tied to this vulnerability and confirm logging/EDR coverage on affected assets.
Authoritative references
Remediate CVE-2016-6415 — and stay ahead of the next one
CVE-2016-6415 is listed in the CISA KEV catalog as actively exploited — treat remediation as urgent. Scan your domain free to see whether CVE-2016-6415 and other Cisco issues affect you and get a prioritized remediation report (full report from ₹999) — or stream the full feed of 1,600+ actively-exploited CVEs straight into your SOC.
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