A vulnerability in the Cisco Discovery Protocol implementation for Cisco IOS XR Software could allow an unauthenticated, adjacent attacker to cause the Cisco Discovery Protocol process to reload on an affected device. This vulnerability is due to a heap buffer overflow in certain Cisco Discovery Protocol messages. An attacker could exploit this vulnerability by sending a malicious Cisco Discovery Protocol packet to an affected device. A successful exploit could allow the attacker to cause a heap overflow, which could cause the Cisco Discovery Protocol process to reload on the device. The bytes that can be written in the buffer overflow are restricted, which limits remote code execution.Note: Cisco Discovery Protocol is a Layer 2 protocol. To exploit this vulnerability, an attacker must be in the same broadcast domain as the affected device (Layer 2 adjacent). Cisco has released software updates that address this vulnerability. There are no workarounds that address this vulnerability.This advisory is part of the September 2022 release of the Cisco IOS XR Software Security Advisory Bundled Publication. For a complete list of the advisories and links to them, see .
This vulnerability carries a MEDIUM severity rating with a CVSS v3.1 score of 4.3, 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 limited availability for affected systems. Impacting 1 product from cisco organizations running these solutions should prioritize assessment and patching.
Reported in 2024, 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.
2024-11-15T16:15:23.120
2025-08-05T14:07:52.300
Analyzed
CVSSv3.1: 4.3 (MEDIUM)
| 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 | 6.5.90 | 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 | 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 | 7.3.15 | 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 | 7.5.12 | Yes |
| Operating System | cisco | ios_xr | 7.6.1 | Yes |
| Operating System | cisco | ios_xr | 7.6.15 | 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.