CVE-2025-20350
7.5
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Exploitability: 3.9 / Impact: 3.6
Source: psirt@cisco.com (Secondary)
Description
A vulnerability in the web UI of Cisco Desk Phone 9800 Series, Cisco IP Phone 7800 and 8800 Series, and Cisco Video Phone 8875 running Cisco SIP Software could allow an unauthenticated, remote attacker to cause a DoS condition on an affected device.
This vulnerability is due to a buffer overflow when an affected device processes HTTP packets. An attacker could exploit this vulnerability by sending crafted HTTP input to the device. A successful exploit could allow the attacker to cause the device to reload, resulting in a DoS condition.
Note: To exploit this vulnerability, the phone must be registered to Cisco Unified Communications Manager and have Web Access enabled. Web Access is disabled by default.
Affected (68)
Products: Cisco: Desk Phone 9871 Firmware, Desk Phone 9841 Firmware, Desk Phone 9851 Firmware, Desk Phone 9861 Firmware, Ip Phone 8865 Firmware, Ip Phone 7811 Firmware, Ip Phone 7821 Firmware, Ip Phone 7841 Firmware, Ip Phone 7861 Firmware, Ip Phone 8811 Firmware, Ip Phone 8832 Firmware, Ip Phone 8841 Firmware, Ip Phone 8845 Firmware, Ip Phone 8851 Firmware, Ip Phone 8861 Firmware, Video Phone 8875 Firmware, Ip Phone 8821 Firmware
Configuration A
| Vulnerable Software | Affected Versions |
|---|---|
| From 3.0\(1\) to 3.2\(1\) |
| Running on/with | Platform Versions |
|---|---|
Cisco Desk Phone 9871 | All versions |
Configuration B
| Vulnerable Software | Affected Versions |
|---|---|
| From 3.0\(1\) to 3.2\(1\) |
| Running on/with | Platform Versions |
|---|---|
Cisco Desk Phone 9841 | All versions |
Configuration C
| Vulnerable Software | Affected Versions |
|---|---|
| From 3.0\(1\) to 3.2\(1\) |
| Running on/with | Platform Versions |
|---|---|
Cisco Desk Phone 9851 | All versions |
Configuration D
| Vulnerable Software | Affected Versions |
|---|---|
| From 3.0\(1\) to 3.2\(1\) |
| Running on/with | Platform Versions |
|---|---|
Cisco Desk Phone 9861 | All versions |
Configuration E
| Vulnerable Software | Affected Versions |
|---|---|
| Before 14.3\(1\) |
| Running on/with | Platform Versions |
|---|---|
Cisco Ip Phone 8865 | All versions |
Configuration F
| Vulnerable Software | Affected Versions |
|---|---|
| Before 14.3\(1\) |
| Running on/with | Platform Versions |
|---|---|
Cisco Ip Phone 7811 | All versions |
Configuration G
| Vulnerable Software | Affected Versions |
|---|---|
| Before 14.3\(1\) |
| Running on/with | Platform Versions |
|---|---|
Cisco Ip Phone 7821 | All versions |
Configuration H
| Vulnerable Software | Affected Versions |
|---|---|
| Before 14.3\(1\) |
| Running on/with | Platform Versions |
|---|---|
Cisco Ip Phone 7841 | All versions |
Configuration I
| Vulnerable Software | Affected Versions |
|---|---|
| Before 14.3\(1\) |
| Running on/with | Platform Versions |
|---|---|
Cisco Ip Phone 7861 | All versions |
Configuration J
| Vulnerable Software | Affected Versions |
|---|---|
| Before 14.3\(1\) |
| Running on/with | Platform Versions |
|---|---|
Cisco Ip Phone 8811 | All versions |
Configuration K
| Vulnerable Software | Affected Versions |
|---|---|
| Before 14.3\(1\) |
| Running on/with | Platform Versions |
|---|---|
Cisco Ip Phone 8832 | All versions |
Configuration L
| Vulnerable Software | Affected Versions |
|---|---|
| Before 14.3\(1\) |
| Running on/with | Platform Versions |
|---|---|
Cisco Ip Phone 8841 | All versions |
Configuration M
| Vulnerable Software | Affected Versions |
|---|---|
| Before 14.3\(1\) |
| Running on/with | Platform Versions |
|---|---|
Cisco Ip Phone 8845 | All versions |
Configuration N
| Vulnerable Software | Affected Versions |
|---|---|
| Before 14.3\(1\) |
| Running on/with | Platform Versions |
|---|---|
Cisco Ip Phone 8851 | All versions |
Configuration O
| Vulnerable Software | Affected Versions |
|---|---|
| Before 14.3\(1\) |
| Running on/with | Platform Versions |
|---|---|
Cisco Ip Phone 8861 | All versions |
Configuration P
| Vulnerable Software | Affected Versions |
|---|---|
| Before 2.3\(1\) |
| Running on/with | Platform Versions |
|---|---|
Cisco Video Phone 8875 | All versions |
Configuration Q
| Vulnerable Software | Affected Versions |
|---|---|
| Before 11.0\(1\) |
| Running on/with | Platform Versions |
|---|---|
Cisco Ip Phone 8821 | All versions |
References (1)
Source: psirt@cisco.com
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