A vulnerability in Cisco SIP IP Phone Software for Cisco IP Phone 7800 Series and 8800 Series could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected phone. The vulnerability is due to insufficient validation of input Session Initiation Protocol (SIP) packets. An attacker could exploit this vulnerability by altering the SIP replies that are sent to the affected phone during the registration process. A successful exploit could allow the attacker to cause the phone to reboot and not complete the registration process.
This vulnerability carries a MEDIUM severity rating with a CVSS v3.1 score of 5.3, indicating it can be exploited remotely over the network but requires specific conditions to be met though user interaction is required and does not require pre-existing privileges . The vulnerability impacts and availability (service disruption) for affected systems. Impacting 24 products from cisco, from cisco, from cisco and 21 others, organizations running these solutions should prioritize assessment and patching.
First disclosed in 2019, this vulnerability was reported during a period defined by widespread IoT adoption challenges, mobile security concerns, and the emergence of advanced persistent threat (APT) techniques. Contemporary mitigation strategies focused on secure development practices and third-party component vetting.
2019-07-06T02:15:11.793
2024-11-21T04:37:41.573
Modified
CVSSv3.0: 5.3 (MEDIUM)
AV:N/AC:L/Au:N/C:N/I:N/A:C
10.0
6.9
| Type | Vendor | Product | Version/Range | Vulnerable? |
|---|---|---|---|---|
| Operating System | cisco | ip_conference_phone_7832_firmware | - | Yes |
| Hardware | cisco | ip_conference_phone_7832 | - | No |
| Operating System | cisco | ip_conference_phone_8832_firmware | 11.5\(1\) | Yes |
| Operating System | cisco | ip_conference_phone_8832_firmware | 12.5\(1\) | Yes |
| Hardware | cisco | ip_conference_phone_8832 | - | No |
| Operating System | cisco | ip_phone_7811_firmware | - | Yes |
| Hardware | cisco | ip_phone_7811 | - | No |
| Operating System | cisco | ip_phone_7821_firmware | - | Yes |
| Hardware | cisco | ip_phone_7821 | - | No |
| Operating System | cisco | ip_phone_7841_firmware | - | Yes |
| Hardware | cisco | ip_phone_7841 | - | No |
| Operating System | cisco | ip_phone_7861_firmware | - | Yes |
| Hardware | cisco | ip_phone_7861 | - | No |
| Operating System | cisco | ip_phone_8811_firmware | 11.5\(1\) | Yes |
| Operating System | cisco | ip_phone_8811_firmware | 12.5\(1\) | Yes |
| Hardware | cisco | ip_phone_8811 | - | No |
| Operating System | cisco | ip_phone_8841_firmware | 11.5\(1\) | Yes |
| Operating System | cisco | ip_phone_8841_firmware | 12.5\(1\) | Yes |
| Hardware | cisco | ip_phone_8841 | - | No |
| Operating System | cisco | ip_phone_8845_firmware | 11.5\(1\) | Yes |
| Operating System | cisco | ip_phone_8845_firmware | 12.5\(1\) | Yes |
| Hardware | cisco | ip_phone_8845 | - | No |
| Operating System | cisco | ip_phone_8851_firmware | 11.5\(1\) | Yes |
| Operating System | cisco | ip_phone_8851_firmware | 12.5\(1\) | Yes |
| Hardware | cisco | ip_phone_8851 | - | No |
| Operating System | cisco | ip_phone_8861_firmware | 11.5\(1\) | Yes |
| Operating System | cisco | ip_phone_8861_firmware | 12.5\(1\) | Yes |
| Hardware | cisco | ip_phone_8861 | - | No |
| Operating System | cisco | ip_phone_8865_firmware | 11.5\(1\) | Yes |
| Operating System | cisco | ip_phone_8865_firmware | 12.5\(1\) | Yes |
| Hardware | cisco | ip_phone_8865 | - | 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.