Vulnerability Description
A vulnerability in the TCP packet processing functionality of Cisco IP Phones could allow an unauthenticated, remote attacker to cause the phone to stop responding to incoming calls, drop connected calls, or unexpectedly reload. The vulnerability is due to insufficient TCP ingress packet rate limiting. An attacker could exploit this vulnerability by sending a high and sustained rate of crafted TCP traffic to the targeted device. A successful exploit could allow the attacker to impact operations of the phone or cause the phone to reload, leading to a denial of service (DoS) condition.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Cisco | Ip Dect 210 Firmware | < 4.8.1 |
| Cisco | Ip Dect 210 | - |
| Cisco | Ip Dect 6825 Firmware | < 4.8.1 |
| Cisco | Ip Dect 6825 | - |
| Cisco | Ip Phone 8811 Firmware | < 11.3.2 |
| Cisco | Ip Phone 8811 | - |
| Cisco | Ip Phone 8841 Firmware | < 11.3.2 |
| Cisco | Ip Phone 8841 | - |
| Cisco | Ip Phone 8851 Firmware | < 11.3.2 |
| Cisco | Ip Phone 8851 | - |
| Cisco | Ip Phone 8861 Firmware | < 11.3.2 |
| Cisco | Ip Phone 8861 | - |
| Cisco | Unified Ip Conference Phone 8831 Firmware | 9.3\(4\) |
| Cisco | Unified Ip Conference Phone 8831 | - |
| Cisco | Webex Room Phone Firmware | < 1.2.0 |
| Cisco | Webex Room Phone | - |
Related Weaknesses (CWE)
References
- https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-vPatchVendor Advisory
- https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-vPatchVendor Advisory
FAQ
What is CVE-2020-3574?
CVE-2020-3574 is a vulnerability with a CVSS score of 7.5 (HIGH). A vulnerability in the TCP packet processing functionality of Cisco IP Phones could allow an unauthenticated, remote attacker to cause the phone to stop responding to incoming calls, drop connected ca...
How severe is CVE-2020-3574?
CVE-2020-3574 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2020-3574?
Check the references section above for vendor advisories and patch information. Affected products include: Cisco Ip Dect 210 Firmware, Cisco Ip Dect 210, Cisco Ip Dect 6825 Firmware, Cisco Ip Dect 6825, Cisco Ip Phone 8811 Firmware.