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CVE Watch

CVE-2016-6415

Cisco IOS, IOS XR, and IOS XE IKEv1 Information Disclosure Vulnerability

CVSS

No CVSS

EPSS

87.3%

p100

KEV

YES

May 19, 2023

Exploit Today

80

0-100

Published: · Last modified:

EPSS · 30d
87.3%EPSS · 30 days87.3%
2026-08-022026-08-31
KEV catalog record

Product

Cisco / IOS, IOS XR, and IOS XE

Vulnerability

Cisco IOS, IOS XR, and IOS XE IKEv1 Information Disclosure Vulnerability

Added to KEV

May 19, 2023

Remediate by

Jun 9, 2023

Known ransomware use

No

Summary description

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

Apply updates per vendor instructions.

Notes

https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20160916-ikev1; https://nvd.nist.gov/vuln/detail/CVE-2016-6415

Related CVEs

No related CVEs by CWE or product.