- 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.
- Source
- psirt@cisco.com
- NVD status
- Analyzed
- Products
- 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
CVSS 3.1
- Type
- Primary
- Base score
- 7.5
- Impact score
- 3.6
- Exploitability score
- 3.9
- Vector string
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- Severity
- HIGH
- psirt@cisco.com
- CWE-121
- Hype score
- Not currently trending
CVE-2025-20350 Unauthenticated DoS Vulnerability in Cisco IP Phone Web UI via Buffer Overflow https://t.co/8c7dDLxXDE
@VulmonFeeds
16 Oct 2025
0 Impressions
0 Retweets
0 Likes
0 Bookmarks
0 Replies
0 Quotes
**CVE-2025-20350** is a high-severity vulnerability affecting Cisco Desk Phone 9800 Series, Cisco IP Phone 7800 and 8800 Series, and Cisco Video Phone 8875 devices running Cisco SIP Software. The flaw resides in the web UI component of these devices and can be exploited remotely
@CveTodo
15 Oct 2025
31 Impressions
0 Retweets
0 Likes
0 Bookmarks
0 Replies
0 Quotes
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