CVE-2024-20445: Cisco Desk Phone 9841 Firmware

Medium severity, CVSS 5.3. EPSS: 0.4% chance of exploitation in the next 30 days.

A vulnerability in the web UI 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 is due to improper storage of sensitive information within the web UI of Session Initiation Protocol (SIP)-based phone loads. An attacker could exploit this vulnerability by browsing to the IP address of a device that has Web Access enabled. A successful exploit could allow the attacker to access sensitive information, including incoming and outgoing call records. Note: Web Access is disabled by default.

Affected products

  • Cisco Desk Phone 9841 Firmware: version 3.1(1) only
  • Cisco Desk Phone 9851 Firmware: version 3.1(1) only
  • Cisco Desk Phone 9861 Firmware: version 3.1(1) only
  • Cisco Desk Phone 9871 Firmware: version 3.1(1) only
  • Cisco IP Conference Phone 7832 Firmware: before 14.3\(1\) (fixed in 14.3\(1\))
  • Cisco IP Conference Phone 8831 Firmware: before 14.3\(1\) (fixed in 14.3\(1\))
  • Cisco IP Conference Phone 8832 Firmware: before 14.3\(1\) (fixed in 14.3\(1\))
  • Cisco IP Phone 7811 Firmware: before 14.3\(1\) (fixed in 14.3\(1\))
  • Cisco IP Phone 7821 Firmware: before 14.3\(1\) (fixed in 14.3\(1\))
  • Cisco IP Phone 7841 Firmware: before 14.3\(1\) (fixed in 14.3\(1\))
  • Cisco IP Phone 7861 Firmware: before 14.3\(1\) (fixed in 14.3\(1\))
  • Cisco IP Phone 8811 Firmware: before 14.3\(1\) (fixed in 14.3\(1\))
  • Cisco IP Phone 8841 Firmware: before 14.3\(1\) (fixed in 14.3\(1\))
  • Cisco IP Phone 8845 Firmware: before 14.3\(1\) (fixed in 14.3\(1\))
  • Cisco IP Phone 8851 Firmware: before 14.3\(1\) (fixed in 14.3\(1\))
  • Cisco IP Phone 8851nr Firmware: before 14.3\(1\) (fixed in 14.3\(1\))
  • Cisco IP Phone 8861 Firmware: before 14.3\(1\) (fixed in 14.3\(1\))
  • Cisco Video Phone 8875 Firmware: before 2.3\(1\) (fixed in 2.3\(1\)); version 2.3(1) only

Published 2024-11-06. Last modified 2026-06-17.