Cisco Sip
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Recent Cisco Sip Security Advisories
| Advisory | Title | Published |
|---|---|---|
| 2025-10-15 | Cisco Desk Phone 9800 Series, IP Phone 7800 and 8800 Series, and Video Phone 8875 with SIP Software Vulnerabilities | October 15, 2025 |
| 2025-09-03 | Cisco Desk Phone 9800 Series, IP Phone 7800 and 8800 Series, and Video Phone 8875 with SIP Software Vulnerabilities | September 3, 2025 |
| 2025-01-23 | Cisco BroadWorks SIP Denial of Service Vulnerability | January 23, 2025 |
| 2022-11-09 | Cisco Firepower Threat Defense Software SIP and Snort 3 Detection Engine Denial of Service Vulnerability | November 9, 2022 |
| 2021-04-28 | Cisco Adaptive Security Appliance Software and Cisco Firepower Threat Defense Software SIP Denial of Service Vulnerability | April 28, 2021 |
By the Year
In 2026 there have been 0 vulnerabilities in Cisco Sip. Last year, in 2025 Sip had 2 security vulnerabilities published. Right now, Sip is on track to have less security vulnerabilities in 2026 than it did last year.
| Year | Vulnerabilities | Average Score |
|---|---|---|
| 2026 | 0 | 0.00 |
| 2025 | 2 | 6.80 |
It may take a day or so for new Sip vulnerabilities to show up in the stats or in the list of recent security vulnerabilities. Additionally vulnerabilities may be tagged under a different product or component name.
Recent Cisco Sip Security Vulnerabilities
Cisco Desk/Video Phone XSS via Unauthenticated Web UI
CVE-2025-20351
6.1 - Medium
- October 15, 2025
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 UI of an affected device does not sufficiently validate user-supplied input. An attacker could exploit this vulnerability by persuading a user to click a crafted link. A successful exploit could allow the attacker to execute arbitrary script code in the context of the affected interface or access sensitive, browser-based information. 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.
XSS
Cisco Desk & IP Phones 7800/8800/9800 DoS via Web UI Buffer Overflow
CVE-2025-20350
7.5 - High
- October 15, 2025
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.
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