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CVE-2019-1635

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CVE-2019-1635

Published: May 3, 2019

Modified: Nov 19, 2024

PUBLISHED

CVSS v3.0

7.5

HIGH

Description

A vulnerability in the call-handling functionality of Session Initiation Protocol (SIP) Software for Cisco IP Phone 7800 Series and 8800 Series could allow an unauthenticated, remote attacker to cause an affected phone to reload unexpectedly, resulting in a temporary denial of service (DoS) condition. The vulnerability is due to incomplete error handling when XML data within a SIP packet is parsed. An attacker could exploit this vulnerability by sending a SIP packet that contains a malicious XML payload to an affected phone. A successful exploit could allow the attacker to cause the affected phone to reload unexpectedly, resulting in a temporary DoS condition.

VendorProductVersions

Cisco

Cisco Wireless IP Phone 8821 and 8821-EX

affected
unspecified - < 11.0(5)

Cisco

Cisco IP Phone 7800 Series and 8800 Series

affected
unspecified - < 12.5(1)

Weaknesses (CWE)

CVSS v3.0 Details

CVSS v3.0 Vector

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

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

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