CVE-2019-1763

HIGH

Cisco IP Phone 8800 Series <11.0(5)/<12.5(1)SR1 - Auth Bypass & DoS via URL Sanitization

Title source: llm
STIX 2.1

Description

A vulnerability in the web-based management interface of Session Initiation Protocol (SIP) Software for Cisco IP Phone 8800 Series could allow an unauthenticated, remote attacker to bypass authorization, access critical services, and cause a denial of service (DoS) condition. The vulnerability exists because the software fails to sanitize URLs before it handles requests. An attacker could exploit this vulnerability by submitting a crafted URL. A successful exploit could allow the attacker to gain unauthorized access to critical services and cause a DoS condition. This vulnerability affects Cisco IP Phone 8800 Series products running a SIP Software release prior to 11.0(5) for Wireless IP Phone 8821 and 8821-EX; and 12.5(1)SR1 for the IP Conference Phone 8832 and the rest of the IP Phone 8800 Series. Cisco IP Conference Phone 8831 is not affected.

References (1)

Core 1
Core References

Scores

CVSS v3 7.5
EPSS 0.0194
EPSS Percentile 77.6%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CISA SSVC

Vulnrichment
Exploitation none
Automatable yes
Technical Impact partial

Details

CWE
CWE-284
Status published
Products (4)
cisco/ip_conference_phone_8832_firmware < 12.5\(1\)sr1
cisco/ip_phone_8800_firmware < 12.5\(1\)sr1
cisco/ip_phone_8821-ex_firmware < 11.0\(5\)
cisco/ip_phone_8821_firmware < 11.0\(5\)
Published Mar 22, 2019
Tracked Since Feb 18, 2026