CVE-2026-20281 Cisco Desk Phone 9800 Series, IP Phone 7800 and 8800 Series, and Video Phone 8875 with SIP Software Denial of Service Vulnerability

A vulnerability in Cisco Desk Phone 9800 Series, Cisco IP Phone 7800 and 8800 Series, and Cisco Video Phone 8875 that are running Cisco Session Initiation Protocol SIP Software could allow an unauthenticated, remote attacker to cause a denial of service DoS condition on an affected device. This...

Cisco Desk Phone 9800 Series, IP Phone 7800 and 8800 Series, and Video Phone 8875 with SIP Software Denial of Service Vulnerability

A vulnerability in Cisco Desk Phone 9800 Series, Cisco IP Phone 7800 and 8800 Series, and Cisco Video Phone 8875 that are running Cisco Session Initiation Protocol SIP Software could allow an unauthenticated, remote attacker to cause a denial of service DoS condition on an affected device. This...

CVE-2025-20351: Improper Neutralization of Input During Web Page Generation

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 conduct XSS attacks against a user of the web UI. This vulnerability exists because the web ...

PT-2025-42380

Name of the Vulnerable Software and Affected Versions Cisco Desk Phone 9800 Series Cisco IP Phone 7800 and 8800 Series Cisco Video Phone 8875 Description A flaw exists in the web UI of the affected devices running Cisco SIP Software that may allow a remote attacker to perform cross-site scripting...

CVE-2025-20350: Stack-based Buffer Overflow

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...