A vulnerability in the handling of IP fragments for the Cisco Small Business SPA300, SPA500, and SPA51x Series IP Phones could allow an unauthenticated, remote attacker to cause the device to reload unexpectedly, resulting in a denial of service (DoS) condition. The vulnerability is due to the inability to handle many large IP fragments for reassembly in a short duration. An attacker could exploit this vulnerability by sending a crafted stream of IP fragments to the targeted device. An exploit could allow the attacker to cause a DoS condition when the device unexpectedly reloads. Cisco Bug IDs: CSCve82586.
This vulnerability carries a HIGH severity rating with a CVSS v3.1 score of 7.5, 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 and availability (service disruption) for affected systems. Impacting 22 products from cisco, from cisco, from cisco and 19 others, organizations running these solutions should prioritize assessment and patching.
First disclosed in 2017, 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.
2017-09-21T05:29:00.327
2025-04-20T01:37:25.860
Deferred
CVSSv3.0: 7.5 (HIGH)
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 | spa_301_firmware | 7.6.2 | Yes |
| Hardware | cisco | spa_301 | - | No |
| Operating System | cisco | spa_303_firmware | 7.6.2 | Yes |
| Hardware | cisco | spa_303 | - | No |
| Operating System | cisco | spa_500ds_firmware | 7.6.2 | Yes |
| Hardware | cisco | spa_500ds | - | No |
| Operating System | cisco | spa_500s_firmware | 7.6.2 | Yes |
| Hardware | cisco | spa_500s | - | No |
| Operating System | cisco | spa_501g_firmware | 7.6.2 | Yes |
| Hardware | cisco | spa_501g | - | No |
| Operating System | cisco | spa_502g_firmware | 7.6.2 | Yes |
| Hardware | cisco | spa_502g | - | No |
| Operating System | cisco | spa_504g_firmware | 7.6.2 | Yes |
| Hardware | cisco | spa_504g | - | No |
| Operating System | cisco | spa_508g_firmware | 7.6.2 | Yes |
| Hardware | cisco | spa_508g | - | No |
| Operating System | cisco | spa_509g_firmware | 7.6.2 | Yes |
| Hardware | cisco | spa_509g | - | No |
| Operating System | cisco | spa_512g_firmware | 7.6.2 | Yes |
| Hardware | cisco | spa_512g | - | No |
| Operating System | cisco | spa_514g_firmware | 7.6.2 | Yes |
| Hardware | cisco | spa_514g | - | 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.