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CVE-2015-0642

Cisco IOS 12.2, 12.4, 15.0, 15.1, 15.2, 15.3, and 15.4 and IOS XE 2.5.x, 2.6.x, 3.1.xS through 3.12.xS before 3.12.3S, 3.2.xE through 3.7.xE before 3.7.1E, 3.3.xSG, 3.4.xSG, and 3.13.xS before 3.13.2S allow remote attackers to cause a denial of service (device reload) by sending malformed IKEv2 packets over (1) IPv4 or (2) IPv6, aka Bug ID CSCum36951.

Security Impact Summary

CVE-2015-0642 is a security vulnerability that . Impacting 2 products from cisco, from cisco organizations running these solutions should prioritize assessment and patching.

Historical Context

First disclosed in 2015, this vulnerability was reported during a period defined by widespread IoT adoption challenges, mobile security concerns, and the emergence of advanced persistent threat (APT) techniques. Contemporary mitigation strategies focused on secure development practices and third-party component vetting.

Published

2015-03-26T10:59:07.927

Last Modified

2025-04-12T10:46:40.837

Status

Deferred

Source

[email protected]

Severity

CVSSv2: 7.8 (HIGH)

CVSSv2 Vector

AV:N/AC:L/Au:N/C:N/I:N/A:C

  • Access Vector: NETWORK
  • Access Complexity: LOW
  • Authentication: NONE
  • Confidentiality Impact: NONE
  • Integrity Impact: NONE
  • Availability Impact: COMPLETE
Exploitability Score

10.0

Impact Score

6.9

Weaknesses
  • Type: Primary
    CWE-20
Affected Vendors & Products
Type Vendor Product Version/Range Vulnerable?
Operating System cisco ios_xe 2.5.0 Yes
Operating System cisco ios_xe 2.5.1 Yes
Operating System cisco ios_xe 3.1s.0 Yes
Operating System cisco ios_xe 3.1s.1 Yes
Operating System cisco ios_xe 3.1s.2 Yes
Operating System cisco ios_xe 3.1s.3 Yes
Operating System cisco ios_xe 3.1s.4 Yes
Operating System cisco ios_xe 3.2s.0 Yes
Operating System cisco ios_xe 3.2s.1 Yes
Operating System cisco ios_xe 3.2s.2 Yes
Operating System cisco ios_xe 3.3s.0 Yes
Operating System cisco ios_xe 3.3s.1 Yes
Operating System cisco ios_xe 3.3s.2 Yes
Operating System cisco ios_xe 3.3sg.0 Yes
Operating System cisco ios_xe 3.3sg.1 Yes
Operating System cisco ios_xe 3.3sg.2 Yes
Operating System cisco ios_xe 3.3xo.0 Yes
Operating System cisco ios_xe 3.3xo.1 Yes
Operating System cisco ios_xe 3.3xo.2 Yes
Operating System cisco ios_xe 3.4s.0 Yes
Operating System cisco ios_xe 3.4s.1 Yes
Operating System cisco ios_xe 3.4s.2 Yes
Operating System cisco ios_xe 3.4s.3 Yes
Operating System cisco ios_xe 3.4s.4 Yes
Operating System cisco ios_xe 3.4s.5 Yes
Operating System cisco ios_xe 3.4s.6 Yes
Operating System cisco ios_xe 3.4sg.0 Yes
Operating System cisco ios_xe 3.4sg.1 Yes
Operating System cisco ios_xe 3.4sg.2 Yes
Operating System cisco ios_xe 3.4sg.3 Yes
Operating System cisco ios_xe 3.4sg.4 Yes
Operating System cisco ios_xe 3.4sg.5 Yes
Operating System cisco ios_xe 3.5e.0 Yes
Operating System cisco ios_xe 3.5e.1 Yes
Operating System cisco ios_xe 3.5e.2 Yes
Operating System cisco ios_xe 3.5e.3 Yes
Operating System cisco ios_xe 3.5s.0 Yes
Operating System cisco ios_xe 3.5s.1 Yes
Operating System cisco ios_xe 3.5s_base Yes
Operating System cisco ios_xe 3.6e.0 Yes
Operating System cisco ios_xe 3.6e.1 Yes
Operating System cisco ios_xe 3.6s.0 Yes
Operating System cisco ios_xe 3.6s.1 Yes
Operating System cisco ios_xe 3.6s.2 Yes
Operating System cisco ios_xe 3.6s_base Yes
Operating System cisco ios_xe 3.7e.0 Yes
Operating System cisco ios_xe 3.7s.0 Yes
Operating System cisco ios_xe 3.7s.1 Yes
Operating System cisco ios_xe 3.7s.2 Yes
Operating System cisco ios_xe 3.7s.3 Yes
Operating System cisco ios_xe 3.7s.4 Yes
Operating System cisco ios_xe 3.7s.5 Yes
Operating System cisco ios_xe 3.7s.6 Yes
Operating System cisco ios_xe 3.7s_base Yes
Operating System cisco ios_xe 3.8s.0 Yes
Operating System cisco ios_xe 3.8s.1 Yes
Operating System cisco ios_xe 3.8s.2 Yes
Operating System cisco ios_xe 3.8s_base Yes
Operating System cisco ios_xe 3.9s.0 Yes
Operating System cisco ios_xe 3.9s.1 Yes
Operating System cisco ios_xe 3.9s.2 Yes
Operating System cisco ios_xe 3.10s.0 Yes
Operating System cisco ios_xe 3.10s.0a Yes
Operating System cisco ios_xe 3.10s.1 Yes
Operating System cisco ios_xe 3.10s.2 Yes
Operating System cisco ios_xe 3.10s.3 Yes
Operating System cisco ios_xe 3.10s.4 Yes
Operating System cisco ios_xe 3.10s.5 Yes
Operating System cisco ios_xe 3.11s.0 Yes
Operating System cisco ios_xe 3.11s.1 Yes
Operating System cisco ios_xe 3.11s.2 Yes
Operating System cisco ios_xe 3.11s.3 Yes
Operating System cisco ios_xe 3.12s.0 Yes
Operating System cisco ios_xe 3.12s.1 Yes
Operating System cisco ios_xe 3.12s.2 Yes
Operating System cisco ios_xe 3.13s.0 Yes
Operating System cisco ios_xe 3.13s.1 Yes
Operating System cisco ios 12.2 Yes
Operating System cisco ios 12.4 Yes
Operating System cisco ios 15.0 Yes
Operating System cisco ios 15.1 Yes
Operating System cisco ios 15.2 Yes
Operating System cisco ios 15.3 Yes
Operating System cisco ios 15.4 Yes
References

How SecUtils Interprets This CVE

SecUtils normalizes and enriches National Vulnerability Database (NVD) records by standardizing vendor and product identifiers, aggregating vulnerability metadata from both NVD and MITRE sources, and providing structured context for security teams. For cisco's affected products, we extract Common Platform Enumeration (CPE) data, Common Weakness Enumeration (CWE) classifications, CVSS severity metrics, and reference data to enable rapid vulnerability prioritization and asset correlation. This record contains no exploit code, proof-of-concept instructions, or attack methodologies—only defensive intelligence necessary for patch management, risk assessment, and security operations.