🛡️ CVE-2022-20968
🟠 CVSS 8.1 — High ✅ No Known Exploit CWE-787 NVD
8.1
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

A vulnerability in the Cisco Discovery Protocol processing feature of Cisco IP Phone 7800 and 8800 Series firmware could allow an unauthenticated, adjacent attacker to cause a stack overflow on an affected device. This vulnerability is due to insufficient input validation of received Cisco Discovery Protocol packets. An attacker could exploit this vulnerability by sending crafted Cisco Discovery Protocol traffic to an affected device. A successful exploit could allow the attacker to cause a stack overflow, resulting in possible remote code execution or a denial of service (DoS) condition on an affected device.

Details

Severity HIGH
CVSS Score 8.1
CVSS Vector CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H
CWE CWE-787
Public Exploit ✅ No
Source NVD
Published 2022-12-12
Updated 2026-06-08
Modified 2024-11-21
Fix URL N/A

Affected Packages

Software From version Fixed in
ip-phone-7811-firmware
ip-phone-7821-firmware
ip-phone-7832-firmware
ip-phone-7841-firmware
ip-phone-7861-firmware
ip-phone-8811-firmware
ip-phone-8831-firmware
ip-phone-8832-firmware
ip-phone-8841-firmware
ip-phone-8845-firmware
ip-phone-8851-firmware
ip-phone-8861-firmware
ip-phone-8865-firmware

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