A vulnerability in confederation implementation for the Border Gateway Protocol (BGP) in Cisco IOS XR Software could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition. This vulnerability is due to a memory corruption that occurs when a BGP update is created with an AS_CONFED_SEQUENCE attribute that has 255 autonomous system numbers (AS numbers). An attacker could exploit this vulnerability by sending a crafted BGP update message, or the network could be designed in such a manner that the AS_CONFED_SEQUENCE attribute grows to 255 AS numbers or more. A successful exploit could allow the attacker to cause memory corruption, which may cause the BGP process to restart, resulting in a DoS condition. To exploit this vulnerability, an attacker must control a BGP confederation speaker within the same autonomous system as the victim, or the network must be designed in such a manner that the AS_CONFED_SEQUENCE attribute grows to 255 AS numbers or more.
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 1 product from cisco organizations running these solutions should prioritize assessment and patching.
Reported in 2025, 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.
2025-03-12T16:15:21.090
2025-08-01T16:13:48.990
Analyzed
CVSSv3.1: 8.6 (HIGH)
| Type | Vendor | Product | Version/Range | Vulnerable? |
|---|---|---|---|---|
| Operating System | cisco | ios_xr | 6.5.1 | Yes |
| Operating System | cisco | ios_xr | 6.5.2 | Yes |
| Operating System | cisco | ios_xr | 6.5.3 | Yes |
| Operating System | cisco | ios_xr | 6.5.15 | Yes |
| Operating System | cisco | ios_xr | 6.5.25 | Yes |
| Operating System | cisco | ios_xr | 6.5.26 | Yes |
| Operating System | cisco | ios_xr | 6.5.28 | Yes |
| Operating System | cisco | ios_xr | 6.5.29 | Yes |
| Operating System | cisco | ios_xr | 6.5.31 | Yes |
| Operating System | cisco | ios_xr | 6.5.32 | Yes |
| Operating System | cisco | ios_xr | 6.5.33 | Yes |
| Operating System | cisco | ios_xr | 6.5.35 | Yes |
| Operating System | cisco | ios_xr | 6.5.90 | Yes |
| Operating System | cisco | ios_xr | 6.5.92 | Yes |
| Operating System | cisco | ios_xr | 6.5.93 | Yes |
| Operating System | cisco | ios_xr | 6.6.1 | Yes |
| Operating System | cisco | ios_xr | 6.6.2 | Yes |
| Operating System | cisco | ios_xr | 6.6.3 | Yes |
| Operating System | cisco | ios_xr | 6.6.4 | Yes |
| Operating System | cisco | ios_xr | 6.6.11 | Yes |
| Operating System | cisco | ios_xr | 6.6.12 | Yes |
| Operating System | cisco | ios_xr | 6.6.25 | Yes |
| Operating System | cisco | ios_xr | 6.7.1 | Yes |
| Operating System | cisco | ios_xr | 6.7.2 | Yes |
| Operating System | cisco | ios_xr | 6.7.3 | Yes |
| Operating System | cisco | ios_xr | 6.7.4 | Yes |
| Operating System | cisco | ios_xr | 6.7.35 | Yes |
| Operating System | cisco | ios_xr | 6.8.1 | Yes |
| Operating System | cisco | ios_xr | 6.8.2 | Yes |
| Operating System | cisco | ios_xr | 6.9.1 | Yes |
| Operating System | cisco | ios_xr | 6.9.2 | Yes |
| Operating System | cisco | ios_xr | 7.0.0 | Yes |
| Operating System | cisco | ios_xr | 7.0.1 | Yes |
| Operating System | cisco | ios_xr | 7.0.2 | Yes |
| Operating System | cisco | ios_xr | 7.0.11 | Yes |
| Operating System | cisco | ios_xr | 7.0.12 | Yes |
| Operating System | cisco | ios_xr | 7.0.14 | Yes |
| Operating System | cisco | ios_xr | 7.0.90 | Yes |
| Operating System | cisco | ios_xr | 7.1.1 | Yes |
| Operating System | cisco | ios_xr | 7.1.2 | Yes |
| Operating System | cisco | ios_xr | 7.1.3 | Yes |
| Operating System | cisco | ios_xr | 7.1.15 | Yes |
| Operating System | cisco | ios_xr | 7.1.25 | Yes |
| Operating System | cisco | ios_xr | 7.2.0 | Yes |
| Operating System | cisco | ios_xr | 7.2.1 | Yes |
| Operating System | cisco | ios_xr | 7.2.2 | Yes |
| Operating System | cisco | ios_xr | 7.2.12 | Yes |
| Operating System | cisco | ios_xr | 7.3.1 | Yes |
| Operating System | cisco | ios_xr | 7.3.2 | Yes |
| Operating System | cisco | ios_xr | 7.3.3 | Yes |
| Operating System | cisco | ios_xr | 7.3.4 | Yes |
| Operating System | cisco | ios_xr | 7.3.5 | Yes |
| Operating System | cisco | ios_xr | 7.3.6 | Yes |
| Operating System | cisco | ios_xr | 7.3.15 | Yes |
| Operating System | cisco | ios_xr | 7.3.16 | Yes |
| Operating System | cisco | ios_xr | 7.3.27 | Yes |
| Operating System | cisco | ios_xr | 7.4.1 | Yes |
| Operating System | cisco | ios_xr | 7.4.2 | Yes |
| Operating System | cisco | ios_xr | 7.4.15 | Yes |
| Operating System | cisco | ios_xr | 7.4.16 | Yes |
| Operating System | cisco | ios_xr | 7.5.1 | Yes |
| Operating System | cisco | ios_xr | 7.5.2 | Yes |
| Operating System | cisco | ios_xr | 7.5.3 | Yes |
| Operating System | cisco | ios_xr | 7.5.4 | Yes |
| Operating System | cisco | ios_xr | 7.5.5 | Yes |
| Operating System | cisco | ios_xr | 7.5.12 | Yes |
| Operating System | cisco | ios_xr | 7.5.52 | Yes |
| Operating System | cisco | ios_xr | 7.6.1 | Yes |
| Operating System | cisco | ios_xr | 7.6.2 | Yes |
| Operating System | cisco | ios_xr | 7.6.3 | Yes |
| Operating System | cisco | ios_xr | 7.6.15 | Yes |
| Operating System | cisco | ios_xr | 7.7.1 | Yes |
| Operating System | cisco | ios_xr | 7.7.2 | Yes |
| Operating System | cisco | ios_xr | 7.7.21 | Yes |
| Operating System | cisco | ios_xr | 7.8.1 | Yes |
| Operating System | cisco | ios_xr | 7.8.2 | Yes |
| Operating System | cisco | ios_xr | 7.8.12 | Yes |
| Operating System | cisco | ios_xr | 7.8.22 | Yes |
| Operating System | cisco | ios_xr | 7.8.23 | Yes |
| Operating System | cisco | ios_xr | 7.9.1 | Yes |
| Operating System | cisco | ios_xr | 7.9.2 | Yes |
| Operating System | cisco | ios_xr | 7.9.21 | Yes |
| Operating System | cisco | ios_xr | 7.10.1 | Yes |
| Operating System | cisco | ios_xr | 7.10.2 | Yes |
| Operating System | cisco | ios_xr | 7.11.1 | Yes |
| Operating System | cisco | ios_xr | 7.11.2 | Yes |
| Operating System | cisco | ios_xr | 7.11.21 | Yes |
| Operating System | cisco | ios_xr | 24.1.1 | Yes |
| Operating System | cisco | ios_xr | 24.1.2 | Yes |
| Operating System | cisco | ios_xr | 24.2.1 | Yes |
| Operating System | cisco | ios_xr | 24.2.2 | Yes |
| Operating System | cisco | ios_xr | 24.2.11 | Yes |
| Operating System | cisco | ios_xr | 24.2.20 | Yes |
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.