CVE-2017-3862

Multiple vulnerabilities in the EnergyWise module of Cisco IOS (12.2 and 15.0 through 15.6) and Cisco IOS XE (3.2 through 3.18) could allow an unauthenticated, remote attacker to cause a buffer overflow condition or a reload of an affected device, leading to a denial of service (DoS) condition. These vulnerabilities are due to improper parsing of crafted EnergyWise packets destined to an affected device. An attacker could exploit these vulnerabilities by sending crafted EnergyWise packets to be processed by an affected device. An exploit could allow the attacker to cause a buffer overflow condition or a reload of the affected device, leading to a DoS condition. Cisco IOS Software and Cisco IOS XE Software support EnergyWise for IPv4 communication. Only IPv4 packets destined to a device configured as an EnergyWise domain member can trigger these vulnerabilities. IPv6 packets cannot be used to trigger these vulnerabilities. Cisco Bug ID CSCuu76493.

• CWE-119
• CWE-119

• http://www.securityfocus.com/bid/97935Third Party Advisory, VDB Entry
• http://www.securitytracker.com/id/1038313
• https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170419-energywiseVendor Advisory
• http://www.securityfocus.com/bid/97935Third Party Advisory, VDB Entry
• http://www.securitytracker.com/id/1038313
• https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170419-energywiseVendor Advisory

Published

Apr 20, 2017

Last Modified

Jun 17, 2026

Status

Modified

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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