CVE-2016-6415

HIGH7.5

CISA KEV

Published 2016-09-19 · Updated 2026-06-17 · Source psirt@cisco.com

Summary

CVE-2016-6415 is a high-severity (CVSS 7.5) vulnerability in Cisco IOS, IOS XR, and IOS XE. CISA added it to the Known Exploited Vulnerabilities catalog on May 19, 2023, which means exploitation in the wild has been confirmed; US federal agencies had to remediate it by June 9, 2023. CISA does not currently list it as used in ransomware campaigns. Cisco has 102 vulnerabilities in the KEV catalog, 7 of them linked to ransomware.

All 102 known-exploited Cisco vulnerabilities →

Description

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.

CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

CWE-200CWE-200

CISA Known-Exploited Vulnerability

Product: Cisco — IOS, IOS XR, and IOS XE

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

Date added: 2023-05-19 · Due: 2023-06-09

Required action: Apply updates per vendor instructions.

References

View on NVD

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