A vulnerability in the web server for Cisco IP Phones could allow an unauthenticated, remote attacker to execute code with root privileges or cause a reload of an affected IP phone, resulting in a denial of service (DoS) condition. The vulnerability is due to a lack of proper input validation of HTTP requests. An attacker could exploit this vulnerability by sending a crafted HTTP request to the web server of a targeted device. A successful exploit could allow the attacker to remotely execute code with root privileges or cause a reload of an affected IP phone, resulting in a DoS condition.
This vulnerability carries a CRITICAL severity rating with a CVSS v3.1 score of 9.8, indicating it can be exploited remotely over the network with relatively low complexity without requiring user interaction and does not require pre-existing privileges . The vulnerability impacts confidentiality (data exposure), integrity (unauthorized modifications), and availability (service disruption) for affected systems. Impacting 26 products from cisco, from cisco, from cisco and 23 others, organizations running these solutions should prioritize assessment and patching.
Reported in 2020, this vulnerability emerged during an era marked by increased sophistication in supply chain attacks, cloud infrastructure vulnerabilities, and software-as-a-service (SaaS) security challenges. Security practices during this period emphasized zero-trust architectures, container security, and API protection.
2020-04-15T20:15:15.097
2025-10-28T13:57:48.327
Analyzed
CVSSv3.1: 9.8 (CRITICAL)
AV:N/AC:L/Au:N/C:C/I:C/A:C
10.0
10.0
| Type | Vendor | Product | Version/Range | Vulnerable? |
|---|---|---|---|---|
| Operating System | cisco | ip_phone_8865_firmware | 10.3\(1\)es14 | Yes |
| Operating System | cisco | ip_phone_8865_firmware | 11.0\(1\) | Yes |
| Operating System | cisco | ip_phone_8865_firmware | 11.0\(5\)sr1 | Yes |
| Hardware | cisco | ip_phone_8865 | - | No |
| Operating System | cisco | ip_phone_8851_firmware | 10.3\(1\)es14 | Yes |
| Operating System | cisco | ip_phone_8851_firmware | 11.0\(1\) | Yes |
| Operating System | cisco | ip_phone_8851_firmware | 11.0\(5\)sr1 | Yes |
| Hardware | cisco | ip_phone_8851 | - | No |
| Operating System | cisco | ip_phone_7841_firmware | 11.0\(1\) | Yes |
| Hardware | cisco | ip_phone_7841 | - | No |
| Operating System | cisco | ip_phone_7821_firmware | 11.0\(1\) | Yes |
| Hardware | cisco | ip_phone_7821 | - | No |
| Operating System | cisco | ip_phone_8811_firmware | 10.3\(1\)es14 | Yes |
| Operating System | cisco | ip_phone_8811_firmware | 11.0\(1\) | Yes |
| Operating System | cisco | ip_phone_8811_firmware | 11.0\(5\)sr1 | Yes |
| Hardware | cisco | ip_phone_8811 | - | No |
| Operating System | cisco | ip_phone_8861_firmware | 10.3\(1\)es14 | Yes |
| Operating System | cisco | ip_phone_8861_firmware | 11.0\(1\) | Yes |
| Operating System | cisco | ip_phone_8861_firmware | 11.0\(5\)sr1 | Yes |
| Hardware | cisco | ip_phone_8861 | - | No |
| Operating System | cisco | ip_phone_8845_firmware | 10.3\(1\)es14 | Yes |
| Operating System | cisco | ip_phone_8845_firmware | 11.0\(1\) | Yes |
| Operating System | cisco | ip_phone_8845_firmware | 11.0\(5\)sr1 | Yes |
| Hardware | cisco | ip_phone_8845 | - | No |
| Operating System | cisco | ip_phone_7861_firmware | 11.0\(1\) | Yes |
| Hardware | cisco | ip_phone_7861 | - | No |
| Operating System | cisco | ip_phone_8841_firmware | 10.3\(1\)es14 | Yes |
| Operating System | cisco | ip_phone_8841_firmware | 11.0\(1\) | Yes |
| Operating System | cisco | ip_phone_8841_firmware | 11.0\(5\)sr1 | Yes |
| Hardware | cisco | ip_phone_8841 | - | No |
| Operating System | cisco | ip_phone_7811_firmware | 11.0\(1\) | Yes |
| Hardware | cisco | ip_phone_7811 | - | No |
| Operating System | cisco | ip_phone_8821_firmware | 10.3\(1\)es14 | Yes |
| Operating System | cisco | ip_phone_8821_firmware | 11.0\(1\) | Yes |
| Operating System | cisco | ip_phone_8821_firmware | 11.0\(5\)sr1 | Yes |
| Hardware | cisco | ip_phone_8821 | - | No |
| Operating System | cisco | ip_phone_8821-ex_firmware | 10.3\(1\)es14 | Yes |
| Operating System | cisco | ip_phone_8821-ex_firmware | 11.0\(1\) | Yes |
| Operating System | cisco | ip_phone_8821-ex_firmware | 11.0\(5\)sr1 | Yes |
| Hardware | cisco | ip_phone_8821-ex | - | No |
| Operating System | cisco | 8831_firmware | 10.3\(1\)es14 | Yes |
| Operating System | cisco | 8831_firmware | 11.0\(1\) | Yes |
| Operating System | cisco | 8831_firmware | 11.0\(5\)sr1 | Yes |
| Hardware | cisco | 8831 | - | No |
SecUtils normalizes and enriches National Vulnerability Database (NVD) records by standardizing vendor and product identifiers, aggregating vulnerability metadata from both NVD and MITRE sources, and providing structured context for security teams. For cisco's affected products, we extract Common Platform Enumeration (CPE) data, Common Weakness Enumeration (CWE) classifications, CVSS severity metrics, and reference data to enable rapid vulnerability prioritization and asset correlation. This record contains no exploit code, proof-of-concept instructions, or attack methodologies—only defensive intelligence necessary for patch management, risk assessment, and security operations.