A vulnerability in the VPN System Logging functionality for Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to cause a memory leak that can deplete system memory over time, which can cause unexpected system behaviors or device crashes. The vulnerability is due to the system memory not being properly freed for a VPN System Logging event generated when a VPN session is created or deleted. An attacker could exploit this vulnerability by repeatedly creating or deleting a VPN tunnel connection, which could leak a small amount of system memory for each logging event. A successful exploit could allow the attacker to cause system memory depletion, which can lead to a systemwide denial of service (DoS) condition. The attacker does not have any control of whether VPN System Logging is configured or not on the device, but it is enabled by default.
This vulnerability carries a HIGH severity rating with a CVSS v3.1 score of 8.6, 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 25 products from cisco, from cisco, from cisco and 22 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.
2020-05-06T17:15:12.230
2024-11-21T05:30:30.713
Modified
CVSSv3.1: 8.6 (HIGH)
AV:N/AC:L/Au:N/C:N/I:N/A:P
10.0
2.9
| Type | Vendor | Product | Version/Range | Vulnerable? |
|---|---|---|---|---|
| Application | cisco | firepower_threat_defense | 6.2.3.12 | Yes |
| Application | cisco | firepower_threat_defense | 6.2.3.13 | Yes |
| Application | cisco | firepower_threat_defense | 6.2.3.14 | Yes |
| Application | cisco | firepower_threat_defense | 6.2.3.15 | Yes |
| Operating System | cisco | asa_5505_firmware | 9.9\(2\) | Yes |
| Operating System | cisco | asa_5505_firmware | 9.9\(2.21\) | Yes |
| Operating System | cisco | asa_5505_firmware | 9.9\(2.52\) | Yes |
| Operating System | cisco | asa_5505_firmware | 9.9\(2.55\) | Yes |
| Hardware | cisco | asa_5505 | - | No |
| Operating System | cisco | asa_5510_firmware | 9.9\(2\) | Yes |
| Operating System | cisco | asa_5510_firmware | 9.9\(2.21\) | Yes |
| Operating System | cisco | asa_5510_firmware | 9.9\(2.52\) | Yes |
| Operating System | cisco | asa_5510_firmware | 9.9\(2.55\) | Yes |
| Hardware | cisco | asa_5510 | - | No |
| Operating System | cisco | asa_5512-x_firmware | 9.9\(2\) | Yes |
| Operating System | cisco | asa_5512-x_firmware | 9.9\(2.21\) | Yes |
| Operating System | cisco | asa_5512-x_firmware | 9.9\(2.52\) | Yes |
| Operating System | cisco | asa_5512-x_firmware | 9.9\(2.55\) | Yes |
| Hardware | cisco | asa_5512-x | - | No |
| Operating System | cisco | asa_5515-x_firmware | 9.9\(2\) | Yes |
| Operating System | cisco | asa_5515-x_firmware | 9.9\(2.21\) | Yes |
| Operating System | cisco | asa_5515-x_firmware | 9.9\(2.52\) | Yes |
| Operating System | cisco | asa_5515-x_firmware | 9.9\(2.55\) | Yes |
| Hardware | cisco | asa_5515-x | - | No |
| Operating System | cisco | asa_5520_firmware | 9.9\(2\) | Yes |
| Operating System | cisco | asa_5520_firmware | 9.9\(2.21\) | Yes |
| Operating System | cisco | asa_5520_firmware | 9.9\(2.52\) | Yes |
| Operating System | cisco | asa_5520_firmware | 9.9\(2.55\) | Yes |
| Hardware | cisco | asa_5520 | - | No |
| Operating System | cisco | asa_5525-x_firmware | 9.9\(2\) | Yes |
| Operating System | cisco | asa_5525-x_firmware | 9.9\(2.21\) | Yes |
| Operating System | cisco | asa_5525-x_firmware | 9.9\(2.52\) | Yes |
| Operating System | cisco | asa_5525-x_firmware | 9.9\(2.55\) | Yes |
| Hardware | cisco | asa_5525-x | - | No |
| Operating System | cisco | asa_5540_firmware | 9.9\(2\) | Yes |
| Operating System | cisco | asa_5540_firmware | 9.9\(2.21\) | Yes |
| Operating System | cisco | asa_5540_firmware | 9.9\(2.52\) | Yes |
| Operating System | cisco | asa_5540_firmware | 9.9\(2.55\) | Yes |
| Hardware | cisco | asa_5540 | - | No |
| Operating System | cisco | asa_5545-x_firmware | 9.9\(2\) | Yes |
| Operating System | cisco | asa_5545-x_firmware | 9.9\(2.21\) | Yes |
| Operating System | cisco | asa_5545-x_firmware | 9.9\(2.52\) | Yes |
| Operating System | cisco | asa_5545-x_firmware | 9.9\(2.55\) | Yes |
| Hardware | cisco | asa_5545-x | - | No |
| Operating System | cisco | asa_5550_firmware | 9.9\(2\) | Yes |
| Operating System | cisco | asa_5550_firmware | 9.9\(2.21\) | Yes |
| Operating System | cisco | asa_5550_firmware | 9.9\(2.52\) | Yes |
| Operating System | cisco | asa_5550_firmware | 9.9\(2.55\) | Yes |
| Hardware | cisco | asa_5550 | - | No |
| Operating System | cisco | asa_5555-x_firmware | 9.9\(2\) | Yes |
| Operating System | cisco | asa_5555-x_firmware | 9.9\(2.21\) | Yes |
| Operating System | cisco | asa_5555-x_firmware | 9.9\(2.52\) | Yes |
| Operating System | cisco | asa_5555-x_firmware | 9.9\(2.55\) | Yes |
| Hardware | cisco | asa_5555-x | - | No |
| Operating System | cisco | asa_5580_firmware | 9.9\(2\) | Yes |
| Operating System | cisco | asa_5580_firmware | 9.9\(2.21\) | Yes |
| Operating System | cisco | asa_5580_firmware | 9.9\(2.52\) | Yes |
| Operating System | cisco | asa_5580_firmware | 9.9\(2.55\) | Yes |
| Hardware | cisco | asa_5580 | - | No |
| Operating System | cisco | asa_5585-x_firmware | 9.9\(2\) | Yes |
| Operating System | cisco | asa_5585-x_firmware | 9.9\(2.21\) | Yes |
| Operating System | cisco | asa_5585-x_firmware | 9.9\(2.52\) | Yes |
| Operating System | cisco | asa_5585-x_firmware | 9.9\(2.55\) | Yes |
| Hardware | cisco | asa_5585-x | - | 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.