Stack-based buffer overflow in Cisco IP Phone 8800 Series and IP Phone 7800 Series - CVE-2022-20968
Published: December 8, 2022
Vulnerability identifier: #VU70068
CSH Severity: Medium
CVSS v4: 8.7 [CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2022-20968
CWE-ID: CWE-121
Exploitation vector: Adjecent network
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to a boundary error when processing Cisco Discovery Protocol packets. A remote attacker on the local network can send specially crafted packets to the affected device, trigger a stack-based buffer overflow and execute arbitrary code on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
Affected software
Cisco IP Phone 8800 Series
IP Phone 7800 Series
IP Phone 7800 Series
How to mitigate CVE-2022-20968
Cybersecurity Help is currently unaware of any official solution to address this vulnerability.
The vendor plans to release firmware upgrade in January 2023.