Multiple vulnerabilities in the Distance Vector Multicast Routing Protocol (DVMRP) feature of Cisco IOS XR Software could allow an unauthenticated, remote attacker to either immediately crash the Internet Group Management Protocol (IGMP) process or make it consume available memory and eventually crash. The memory consumption may negatively impact other processes that are running on the device. These vulnerabilities are due to the incorrect handling of IGMP packets. An attacker could exploit these vulnerabilities by sending crafted IGMP traffic to an affected device. A successful exploit could allow the attacker to immediately crash the IGMP process or cause memory exhaustion, resulting in other processes becoming unstable. These processes may include, but are not limited to, interior and exterior routing protocols. Cisco will release software updates that address these vulnerabilities.
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 43 products from cisco, from cisco, from cisco and 40 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.
2020-09-23T01:15:15.503
2025-10-28T13:53:47.217
Analyzed
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? |
|---|---|---|---|---|
| Operating System | cisco | ios_xr | 6.1.4 | Yes |
| Operating System | cisco | ios_xr | 6.2.3 | Yes |
| Operating System | cisco | ios_xr | 6.3.3 | Yes |
| Operating System | cisco | ios_xr | 6.4.2 | Yes |
| Operating System | cisco | ios_xr | 6.5.3 | Yes |
| Operating System | cisco | ios_xr | 6.6.2 | Yes |
| Operating System | cisco | ios_xr | 6.6.3 | Yes |
| Operating System | cisco | ios_xr | 7.0.2 | Yes |
| Operating System | cisco | ios_xr | 7.1.2 | Yes |
| Operating System | cisco | ios_xr | 7.1.15 | Yes |
| Hardware | cisco | asr_9000v | - | No |
| Hardware | cisco | asr_9001 | - | No |
| Hardware | cisco | asr_9006 | - | No |
| Hardware | cisco | asr_9010 | - | No |
| Hardware | cisco | asr_9901 | - | No |
| Hardware | cisco | asr_9903 | - | No |
| Hardware | cisco | asr_9904 | - | No |
| Hardware | cisco | asr_9906 | - | No |
| Hardware | cisco | asr_9910 | - | No |
| Hardware | cisco | asr_9912 | - | No |
| Hardware | cisco | asr_9922 | - | No |
| Hardware | cisco | ncs_5001 | - | No |
| Hardware | cisco | ncs_5002 | - | No |
| Hardware | cisco | ncs_5011 | - | No |
| Hardware | cisco | ncs_520 | - | No |
| Hardware | cisco | ncs_540 | - | No |
| Hardware | cisco | ncs_5501 | - | No |
| Hardware | cisco | ncs_5501 | se | No |
| Hardware | cisco | ncs_5502 | - | No |
| Hardware | cisco | ncs_5502 | se | No |
| Hardware | cisco | ncs_5508 | - | No |
| Hardware | cisco | ncs_5516 | - | No |
| Hardware | cisco | ncs_560 | - | No |
| Hardware | cisco | ncs_6008 | - | No |
| Operating System | cisco | ios_xr | < 6.5.2 | Yes |
| Hardware | cisco | ncs_5001 | - | No |
| Hardware | cisco | ncs_5002 | - | No |
| Hardware | cisco | ncs_5011 | - | No |
| Hardware | cisco | ncs_520 | - | No |
| Hardware | cisco | ncs_540 | - | No |
| Hardware | cisco | ncs_5501 | - | No |
| Hardware | cisco | ncs_5501 | se | No |
| Hardware | cisco | ncs_5502 | - | No |
| Hardware | cisco | ncs_5502 | se | No |
| Hardware | cisco | ncs_5508 | - | No |
| Hardware | cisco | ncs_5516 | - | No |
| Hardware | cisco | ncs_560 | - | No |
| Hardware | cisco | ncs_6008 | - | No |
| Operating System | cisco | ios_xr | 6.1.4 | Yes |
| Operating System | cisco | ios_xr | 6.4.2 | Yes |
| Operating System | cisco | ios_xr | 6.4.3 | Yes |
| Hardware | cisco | crs | - | No |
| Hardware | cisco | crs-1_16-slot_line_card_chassis | - | No |
| Hardware | cisco | crs-1_16-slot_single-shelf_system | - | No |
| Hardware | cisco | crs-1_4-slot_single-shelf_system | - | No |
| Hardware | cisco | crs-1_8-slot_line_card_chassis | - | No |
| Hardware | cisco | crs-1_8-slot_single-shelf_system | - | No |
| Hardware | cisco | crs-1_fabric_card_chassis | - | No |
| Hardware | cisco | crs-1_line_card_chassis_\(dual\) | - | No |
| Hardware | cisco | crs-1_line_card_chassis_\(multi\) | - | No |
| Hardware | cisco | crs-1_multishelf_system | - | No |
| Hardware | cisco | crs-3_16-slot_single-shelf_system | - | No |
| Hardware | cisco | crs-3_4-slot_single-shelf_system | - | No |
| Hardware | cisco | crs-3_8-slot_single-shelf_system | - | No |
| Hardware | cisco | crs-3_multishelf_system | - | No |
| Hardware | cisco | crs-8\/s-b_crs | - | No |
| Hardware | cisco | crs-8\/scrs | - | No |
| Hardware | cisco | crs-x | - | No |
| Hardware | cisco | crs-x_16-slot_single-shelf_system | - | No |
| Hardware | cisco | crs-x_multishelf_system | - | No |
| Hardware | cisco | crs_performance_route_processor | - | 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.