CVEvulnerability
CVE-2017-3864
8.6 HIGH
Official page ↗
- Status
- Modified
- Published
- 2017-03-22
- Last modified
- 2026-06-17
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 8.6 HIGH — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
- CVSS 2.0 ([email protected])
- 7.8 HIGH — AV:N/AC:L/Au:N/C:N/I:N/A:C
- Weaknesses
- CWE-399
Description
A vulnerability in the DHCP client implementation of Cisco IOS (12.2, 12.4, and 15.0 through 15.6) and Cisco IOS XE (3.3 through 3.7) could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition. The vulnerability occurs during the parsing of a crafted DHCP packet. An attacker could exploit this vulnerability by sending crafted DHCP packets to an affected device that is configured as a DHCP client. A successful exploit could allow the attacker to cause a reload of an affected device, resulting in a DoS condition. This vulnerability affects Cisco devices that are running a vulnerable release of Cisco IOS or IOS XE Software and using a specific DHCP client configuration. Cisco Bug IDs: CSCuu43892.
Affected configurations
• cisco ios (>= 15.0 <= 15.6)
• cisco ios 12.2
• cisco ios 12.4
• cisco ios xe (>= 3.3 <= 3.7)
Related
Weakness · not in database (1)
References
- http://www.securityfocus.com/bid/97012 Third Party Advisory, VDB Entry
- http://www.securitytracker.com/id/1038103 Third Party Advisory, VDB Entry
- https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170322-dhcpc Vendor Advisory
- http://www.securityfocus.com/bid/97012 Third Party Advisory, VDB Entry
- http://www.securitytracker.com/id/1038103 Third Party Advisory, VDB Entry
- https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170322-dhcpc Vendor Advisory