A vulnerability in the Cisco Discovery Protocol or Link Layer Discovery Protocol (LLDP) implementation for the Cisco IP Phone 7800 and 8800 Series could allow an unauthenticated, adjacent attacker to cause an affected phone to reload unexpectedly, resulting in a temporary denial of service (DoS) condition. The vulnerability is due to missing length validation of certain Cisco Discovery Protocol or LLDP packet header fields. An attacker could exploit this vulnerability by sending a malicious Cisco Discovery Protocol or LLDP packet to the targeted phone. A successful exploit could allow the attacker to cause the affected phone to reload unexpectedly, resulting in a temporary DoS condition. Versions prior to 12.6(1)MN80 are affected.
This vulnerability carries a MEDIUM severity rating with a CVSS v3.1 score of 6.5, indicating it requires adjacent network access with relatively low complexity without requiring user interaction and does not require pre-existing privileges . The vulnerability impacts and availability (service disruption) for affected systems. Impacting 28 products from cisco, from cisco, from cisco and 25 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.
2019-02-21T20:29:00.337
2024-11-21T04:37:05.597
Modified
CVSSv3.1: 6.5 (MEDIUM)
AV:A/AC:L/Au:N/C:N/I:N/A:C
6.5
6.9
| Type | Vendor | Product | Version/Range | Vulnerable? |
|---|---|---|---|---|
| Operating System | cisco | ip_phone_8800_firmware | < 12.6\(1\)mn80 | Yes |
| Hardware | cisco | ip_phone_8800 | - | No |
| Operating System | cisco | ip_phone_7800_firmware | < 12.6\(1\)mn80 | Yes |
| Hardware | cisco | ip_phone_7800 | - | No |
| Operating System | cisco | ip_conference_phone_7832_firmware | < 12.6\(1\)mn80 | Yes |
| Hardware | cisco | ip_conference_phone_7832 | - | No |
| Operating System | cisco | ip_conference_phone_8832_firmware | < 12.6\(1\)mn80 | Yes |
| Hardware | cisco | ip_conference_phone_8832 | - | No |
| Operating System | cisco | ip_phone_7811_firmware | < 12.6\(1\)mn80 | Yes |
| Hardware | cisco | ip_phone_7811 | - | No |
| Operating System | cisco | ip_phone_7821_firmware | < 12.6\(1\)mn80 | Yes |
| Hardware | cisco | ip_phone_7821 | - | No |
| Operating System | cisco | ip_phone_7841_firmware | < 12.6\(1\)mn80 | Yes |
| Hardware | cisco | ip_phone_7841 | - | No |
| Operating System | cisco | ip_phone_7861_firmware | < 12.6\(1\)mn80 | Yes |
| Hardware | cisco | ip_phone_7861 | - | No |
| Operating System | cisco | ip_phone_8811_firmware | < 12.6\(1\)mn80 | Yes |
| Hardware | cisco | ip_phone_8811 | - | No |
| Operating System | cisco | ip_phone_8841_firmware | < 12.6\(1\)mn80 | Yes |
| Hardware | cisco | ip_phone_8841 | - | No |
| Operating System | cisco | ip_phone_8845_firmware | < 12.6\(1\)mn80 | Yes |
| Hardware | cisco | ip_phone_8845 | - | No |
| Operating System | cisco | ip_phone_8851_firmware | < 12.6\(1\)mn80 | Yes |
| Hardware | cisco | ip_phone_8851 | - | No |
| Operating System | cisco | ip_phone_8861_firmware | < 12.6\(1\)mn80 | Yes |
| Hardware | cisco | ip_phone_8861 | - | No |
| Operating System | cisco | ip_phone_8865_firmware | < 12.6\(1\)mn80 | 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.