CVE-2025-20336

MEDIUM

Cisco Desk Phone/Cisco IP Phone/Cisco Video Phone - Info Disclosure

Title source: llm
STIX 2.1

Description

A vulnerability in the directory permissions of Cisco Desk Phone 9800 Series, Cisco IP Phone 7800 and 8800 Series, and Cisco Video Phone 8875 could allow an unauthenticated, remote attacker to access sensitive information on an affected device. This vulnerability exists because the product exposes sensitive information to an actor that is not explicitly authorized to have access to that information. An attacker could exploit this vulnerability by sending a crafted packet to the IP address of a device that has Web Access enabled. A successful exploit could allow the attacker to access sensitive information from the device. Note: To exploit this vulnerability, Web Access must be enabled on the phone. Web Access is disabled by default.

Scores

CVSS v3 5.3
EPSS 0.0003
EPSS Percentile 9.8%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

CISA SSVC

Vulnrichment
Exploitation none
Automatable yes
Technical Impact partial

Details

CWE
CWE-200
Status published
Products (30)
cisco/desk_phone_9841_firmware 3.0\(1\) - 3.3\(1\)
cisco/desk_phone_9851_firmware 3.0\(1\) - 3.3\(1\)
cisco/desk_phone_9861_firmware 3.0\(1\) - 3.3\(1\)
cisco/desk_phone_9871_firmware 3.0\(1\) - 3.3\(1\)
cisco/ip_phone_7811_firmware 14.3\(1\) (2 CPE variants)
cisco/ip_phone_7811_firmware < 14.3\(1\)
cisco/ip_phone_7821_firmware 14.3\(1\) (2 CPE variants)
cisco/ip_phone_7821_firmware < 14.3\(1\)
cisco/ip_phone_7841_firmware 14.3\(1\) (2 CPE variants)
cisco/ip_phone_7841_firmware < 14.3\(1\)
... and 20 more
Published Sep 03, 2025
Tracked Since Feb 18, 2026