CVE-2017-6630

MEDIUM

Cisco IP Phone 8851 11.0(0.1) - Unauthenticated Denial of Service via SIP CANCEL Packet

Title source: llm

Description

A vulnerability in the Session Initiation Protocol (SIP) implementation of Cisco IP Phone 8851 11.0(0.1) could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition. The vulnerability is due to an abnormal SIP message. An attacker could exploit this vulnerability by manipulating the CANCEL packet. An exploit could allow the attacker to cause a disruption of service to the phone. Cisco Bug IDs: CSCvc34795.

References (3)

Core 3

Core References

Third Party Advisory, VDB Entry vdb-entry x_refsource_sectrack

http://www.securitytracker.com/id/1038511

Vendor Advisory x_refsource_confirm

https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170517-sip

Third Party Advisory, VDB Entry vdb-entry x_refsource_bid

http://www.securityfocus.com/bid/98533

Scores

CVSS v3 5.3

EPSS 0.0237

EPSS Percentile 82.1%

Attack Vector NETWORK

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

Details

CWE

CWE-399

Status published

Products (2)

cisco/ip_phone_8800_series_firmware 11.0\(0.1\)

n/a/Cisco IP Phone 8851 Cisco IP Phone 8851

Published May 22, 2017

Tracked Since Feb 18, 2026