CVE-2025-20336
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.
How to fix
- cisco desk_phone_9841_firmware3.3\(1\) or later
- cisco desk_phone_9851_firmware3.3\(1\) or later
- cisco desk_phone_9861_firmware3.3\(1\) or later
- cisco desk_phone_9871_firmware3.3\(1\) or later
- cisco ip_phone_8841_firmware14.3\(1\) or later
- cisco ip_phone_7811_firmware14.3\(1\) or later
- cisco ip_phone_7821_firmware14.3\(1\) or later
- cisco ip_phone_7841_firmware14.3\(1\) or later
- cisco ip_phone_7861_firmware14.3\(1\) or later
- cisco ip_phone_8811_firmware14.3\(1\) or later
- cisco ip_phone_8845_firmware14.3\(1\) or later
- cisco ip_phone_8851_firmware14.3\(1\) or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| cisco desk_phone_9841_firmware | 3.0\(1\) ≤ v < 3.3\(1\) | 3.3\(1\) |
| cisco desk_phone_9851_firmware | 3.0\(1\) ≤ v < 3.3\(1\) | 3.3\(1\) |
| cisco desk_phone_9861_firmware | 3.0\(1\) ≤ v < 3.3\(1\) | 3.3\(1\) |
| cisco desk_phone_9871_firmware | 3.0\(1\) ≤ v < 3.3\(1\) | 3.3\(1\) |
| cisco ip_phone_8841_firmware | v < 14.3\(1\), 14.3\(1\) | 14.3\(1\) |
| cisco ip_phone_7811_firmware | v < 14.3\(1\), 14.3\(1\) | 14.3\(1\) |
| cisco ip_phone_7821_firmware | v < 14.3\(1\), 14.3\(1\) | 14.3\(1\) |
| cisco ip_phone_7841_firmware | v < 14.3\(1\), 14.3\(1\) | 14.3\(1\) |
| cisco ip_phone_7861_firmware | v < 14.3\(1\), 14.3\(1\) | 14.3\(1\) |
| cisco ip_phone_8811_firmware | v < 14.3\(1\), 14.3\(1\) | 14.3\(1\) |
| cisco ip_phone_8845_firmware | v < 14.3\(1\), 14.3\(1\) | 14.3\(1\) |
| cisco ip_phone_8851_firmware | v < 14.3\(1\), 14.3\(1\) | 14.3\(1\) |
| cisco ip_phone_8851nr_firmware | v < 14.3\(1\), 14.3\(1\) | 14.3\(1\) |
| cisco ip_phone_8861_firmware | v < 14.3\(1\), 14.3\(1\) | 14.3\(1\) |
| cisco ip_phone_8865_firmware | v < 14.3\(1\), 14.3\(1\) | 14.3\(1\) |
| cisco video_phone_8875_firmware | v < 2.3\(1\), 3.0\(1\) ≤ v < 3.3\(1\), 2.3\(1\) | 2.3\(1\), 3.3\(1\) |
| cisco ip_phone_8821_firmware | v < 11.0\(6\), 11.0\(6\) | 11.0\(6\) |
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