CVE-2017-3864

HIGH
8.6
CVSS Score
Published: March 22, 2017 at 07:00 PM UTC
Updated: June 17, 2026 at 01:19 AM UTC
2 products affected across 1 vendorIOSIOS Xe

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Severity
HIGH8.6
Exploit prediction
EPSS 3%

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

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

15.0 ≤ v ≤ 15.612.212.4
3.3 ≤ v ≤ 3.7

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

References (3)

VDB Entryx_refsource_BIDThird Party Advisory
http://www.securityfocus.com/bid/97012
VDB Entryx_refsource_SECTRACKThird Party Advisory
http://www.securitytracker.com/id/1038103

CVSS

Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
CHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-399NVD-CWE-noinfo

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