CVE-2019-1763

Cisco IP Phone 8800 Series Authorization Bypass Vulnerability

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.

Category

7.5
CVSS
Severity: High
CVSS 3.1 •
CVSS 3.0 •
CVSS 2.0 •
EPSS 1.34% Top 25%
Vendor Advisory cisco.com
Affected: Cisco Cisco Wireless IP Phone 8821 and 8821-EX
Affected: Cisco Cisco IP Conference Phone 8832 and the rest of the IP Phone 8800 Series
Published at:
Updated at:

References

Frequently Asked Questions

What is the severity of CVE-2019-1763?
CVE-2019-1763 has been scored as a high severity vulnerability.
How to fix CVE-2019-1763?
To fix CVE-2019-1763, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2019-1763 being actively exploited in the wild?
It is possible that CVE-2019-1763 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~1% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2019-1763?
CVE-2019-1763 affects Cisco Cisco Wireless IP Phone 8821 and 8821-EX, Cisco Cisco IP Conference Phone 8832 and the rest of the IP Phone 8800 Series.
This platform uses data from the NIST NVD, MITRE CVE, MITRE CWE, First.org and CISA KEV but is not endorsed or certified by these entities. CVE is a registred trademark of the MITRE Corporation and the authoritative source of CVE content is MITRE's CVE web site. CWE is a registred trademark of the MITRE Corporation and the authoritative source of CWE content is MITRE's CWE web site.
© 2025 Under My Watch. All Rights Reserved.