A vulnerability in the boot logic of Cisco IOS XE Software could allow an authenticated, local attacker with level 15 privileges or an unauthenticated attacker with physical access to execute arbitrary code on the underlying Linux operating system of an affected device. This vulnerability is due to incorrect validations of specific function arguments that are passed to the boot script. An attacker could exploit this vulnerability by tampering with a specific file, which an affected device would process during the initial boot process. On systems that are protected by the Unified Extensible Firmware Interface (UEFI) secure boot feature, a successful exploit could allow the attacker to execute unsigned code at boot time and bypass the image verification check in the secure boot process of the affected device.
This vulnerability carries a MEDIUM severity rating with a CVSS v3.1 score of 6.8, with relatively low complexity without requiring user interaction and does not require pre-existing privileges . The vulnerability impacts confidentiality (data exposure), integrity (unauthorized modifications), and availability (service disruption) for affected systems. Impacting 1 product from cisco organizations running these solutions should prioritize assessment and patching.
Reported in 2021, 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.
2021-03-24T20:15:14.213
2024-11-21T05:44:15.817
Modified
CVSSv3.1: 6.8 (MEDIUM)
AV:L/AC:M/Au:N/C:C/I:C/A:C
3.4
10.0
| Type | Vendor | Product | Version/Range | Vulnerable? |
|---|---|---|---|---|
| Operating System | cisco | ios_xe | 3.7.0bs | Yes |
| Operating System | cisco | ios_xe | 3.7.0s | Yes |
| Operating System | cisco | ios_xe | 3.7.0xas | Yes |
| Operating System | cisco | ios_xe | 3.7.0xbs | Yes |
| Operating System | cisco | ios_xe | 3.7.1as | Yes |
| Operating System | cisco | ios_xe | 3.7.1s | Yes |
| Operating System | cisco | ios_xe | 3.7.2s | Yes |
| Operating System | cisco | ios_xe | 3.7.2ts | Yes |
| Operating System | cisco | ios_xe | 3.7.3s | Yes |
| Operating System | cisco | ios_xe | 3.7.4as | Yes |
| Operating System | cisco | ios_xe | 3.7.4s | Yes |
| Operating System | cisco | ios_xe | 3.7.5s | Yes |
| Operating System | cisco | ios_xe | 3.7.6s | Yes |
| Operating System | cisco | ios_xe | 3.7.7s | Yes |
| Operating System | cisco | ios_xe | 3.7.8s | Yes |
| Operating System | cisco | ios_xe | 3.8.0s | Yes |
| Operating System | cisco | ios_xe | 3.8.1s | Yes |
| Operating System | cisco | ios_xe | 3.8.2s | Yes |
| Operating System | cisco | ios_xe | 3.9.0as | Yes |
| Operating System | cisco | ios_xe | 3.9.0s | Yes |
| Operating System | cisco | ios_xe | 3.9.0xas | Yes |
| Operating System | cisco | ios_xe | 3.9.1as | Yes |
| Operating System | cisco | ios_xe | 3.9.1s | Yes |
| Operating System | cisco | ios_xe | 3.9.2s | Yes |
| Operating System | cisco | ios_xe | 3.10.0s | Yes |
| Operating System | cisco | ios_xe | 3.10.1s | Yes |
| Operating System | cisco | ios_xe | 3.10.1xbs | Yes |
| Operating System | cisco | ios_xe | 3.10.1xcs | Yes |
| Operating System | cisco | ios_xe | 3.10.2as | Yes |
| Operating System | cisco | ios_xe | 3.10.2s | Yes |
| Operating System | cisco | ios_xe | 3.10.2ts | Yes |
| Operating System | cisco | ios_xe | 3.10.3s | Yes |
| Operating System | cisco | ios_xe | 3.10.4s | Yes |
| Operating System | cisco | ios_xe | 3.10.5s | Yes |
| Operating System | cisco | ios_xe | 3.10.6s | Yes |
| Operating System | cisco | ios_xe | 3.10.7s | Yes |
| Operating System | cisco | ios_xe | 3.10.8as | Yes |
| Operating System | cisco | ios_xe | 3.10.8s | Yes |
| Operating System | cisco | ios_xe | 3.10.9s | Yes |
| Operating System | cisco | ios_xe | 3.10.10s | Yes |
| Operating System | cisco | ios_xe | 3.11.0s | Yes |
| Operating System | cisco | ios_xe | 3.11.1s | Yes |
| Operating System | cisco | ios_xe | 3.11.2s | Yes |
| Operating System | cisco | ios_xe | 3.11.3s | Yes |
| Operating System | cisco | ios_xe | 3.11.4s | Yes |
| Operating System | cisco | ios_xe | 3.12.0as | Yes |
| Operating System | cisco | ios_xe | 3.12.0s | Yes |
| Operating System | cisco | ios_xe | 3.12.1s | Yes |
| Operating System | cisco | ios_xe | 3.12.2s | Yes |
| Operating System | cisco | ios_xe | 3.12.3s | Yes |
| Operating System | cisco | ios_xe | 3.12.4s | Yes |
| Operating System | cisco | ios_xe | 3.13.0as | Yes |
| Operating System | cisco | ios_xe | 3.13.0s | Yes |
| Operating System | cisco | ios_xe | 3.13.1s | Yes |
| Operating System | cisco | ios_xe | 3.13.2as | Yes |
| Operating System | cisco | ios_xe | 3.13.2s | Yes |
| Operating System | cisco | ios_xe | 3.13.3s | Yes |
| Operating System | cisco | ios_xe | 3.13.4s | Yes |
| Operating System | cisco | ios_xe | 3.13.5as | Yes |
| Operating System | cisco | ios_xe | 3.13.5s | Yes |
| Operating System | cisco | ios_xe | 3.13.6as | Yes |
| Operating System | cisco | ios_xe | 3.13.6bs | Yes |
| Operating System | cisco | ios_xe | 3.13.6s | Yes |
| Operating System | cisco | ios_xe | 3.13.7as | Yes |
| Operating System | cisco | ios_xe | 3.13.7s | Yes |
| Operating System | cisco | ios_xe | 3.13.8s | Yes |
| Operating System | cisco | ios_xe | 3.13.9s | Yes |
| Operating System | cisco | ios_xe | 3.13.10s | Yes |
| Operating System | cisco | ios_xe | 3.14.0s | Yes |
| Operating System | cisco | ios_xe | 3.14.1s | Yes |
| Operating System | cisco | ios_xe | 3.14.2s | Yes |
| Operating System | cisco | ios_xe | 3.14.3s | Yes |
| Operating System | cisco | ios_xe | 3.14.4s | Yes |
| Operating System | cisco | ios_xe | 3.15.0s | Yes |
| Operating System | cisco | ios_xe | 3.15.1cs | Yes |
| Operating System | cisco | ios_xe | 3.15.1s | Yes |
| Operating System | cisco | ios_xe | 3.15.1xbs | Yes |
| Operating System | cisco | ios_xe | 3.15.2s | Yes |
| Operating System | cisco | ios_xe | 3.15.2xbs | Yes |
| Operating System | cisco | ios_xe | 3.15.3s | Yes |
| Operating System | cisco | ios_xe | 3.15.4s | Yes |
| Operating System | cisco | ios_xe | 3.16.0as | Yes |
| Operating System | cisco | ios_xe | 3.16.0bs | Yes |
| Operating System | cisco | ios_xe | 3.16.0cs | Yes |
| Operating System | cisco | ios_xe | 3.16.0s | Yes |
| Operating System | cisco | ios_xe | 3.16.1as | Yes |
| Operating System | cisco | ios_xe | 3.16.1s | Yes |
| Operating System | cisco | ios_xe | 3.16.2as | Yes |
| Operating System | cisco | ios_xe | 3.16.2bs | Yes |
| Operating System | cisco | ios_xe | 3.16.2s | Yes |
| Operating System | cisco | ios_xe | 3.16.3as | Yes |
| Operating System | cisco | ios_xe | 3.16.3s | Yes |
| Operating System | cisco | ios_xe | 3.16.4as | Yes |
| Operating System | cisco | ios_xe | 3.16.4bs | Yes |
| Operating System | cisco | ios_xe | 3.16.4cs | Yes |
| Operating System | cisco | ios_xe | 3.16.4ds | Yes |
| Operating System | cisco | ios_xe | 3.16.4es | Yes |
| Operating System | cisco | ios_xe | 3.16.4gs | Yes |
| Operating System | cisco | ios_xe | 3.16.4s | Yes |
| Operating System | cisco | ios_xe | 3.16.5as | Yes |
| Operating System | cisco | ios_xe | 3.16.5bs | Yes |
| Operating System | cisco | ios_xe | 3.16.5s | Yes |
| Operating System | cisco | ios_xe | 3.16.6bs | Yes |
| Operating System | cisco | ios_xe | 3.16.6s | Yes |
| Operating System | cisco | ios_xe | 3.16.7as | Yes |
| Operating System | cisco | ios_xe | 3.16.7bs | Yes |
| Operating System | cisco | ios_xe | 3.16.7s | Yes |
| Operating System | cisco | ios_xe | 3.16.8s | Yes |
| Operating System | cisco | ios_xe | 3.16.9s | Yes |
| Operating System | cisco | ios_xe | 3.16.10as | Yes |
| Operating System | cisco | ios_xe | 3.16.10s | Yes |
| Operating System | cisco | ios_xe | 3.17.0s | Yes |
| Operating System | cisco | ios_xe | 3.17.1as | Yes |
| Operating System | cisco | ios_xe | 3.17.1s | Yes |
| Operating System | cisco | ios_xe | 3.17.2s | Yes |
| Operating System | cisco | ios_xe | 3.17.3s | Yes |
| Operating System | cisco | ios_xe | 3.17.4s | Yes |
| Operating System | cisco | ios_xe | 3.18.0as | Yes |
| Operating System | cisco | ios_xe | 3.18.0s | Yes |
| Operating System | cisco | ios_xe | 3.18.0sp | Yes |
| Operating System | cisco | ios_xe | 3.18.1asp | Yes |
| Operating System | cisco | ios_xe | 3.18.1bsp | Yes |
| Operating System | cisco | ios_xe | 3.18.1csp | Yes |
| Operating System | cisco | ios_xe | 3.18.1gsp | Yes |
| Operating System | cisco | ios_xe | 3.18.1hsp | Yes |
| Operating System | cisco | ios_xe | 3.18.1isp | Yes |
| Operating System | cisco | ios_xe | 3.18.1s | Yes |
| Operating System | cisco | ios_xe | 3.18.1sp | Yes |
| Operating System | cisco | ios_xe | 3.18.2asp | Yes |
| Operating System | cisco | ios_xe | 3.18.2s | Yes |
| Operating System | cisco | ios_xe | 3.18.2sp | Yes |
| Operating System | cisco | ios_xe | 3.18.3asp | Yes |
| Operating System | cisco | ios_xe | 3.18.3bsp | Yes |
| Operating System | cisco | ios_xe | 3.18.3s | Yes |
| Operating System | cisco | ios_xe | 3.18.3sp | Yes |
| Operating System | cisco | ios_xe | 3.18.4s | Yes |
| Operating System | cisco | ios_xe | 3.18.4sp | Yes |
| Operating System | cisco | ios_xe | 3.18.5sp | Yes |
| Operating System | cisco | ios_xe | 3.18.6sp | Yes |
| Operating System | cisco | ios_xe | 3.18.7sp | Yes |
| Operating System | cisco | ios_xe | 3.18.8asp | Yes |
| Operating System | cisco | ios_xe | 3.18.8sp | Yes |
| Operating System | cisco | ios_xe | 16.1.1 | Yes |
| Operating System | cisco | ios_xe | 16.1.2 | Yes |
| Operating System | cisco | ios_xe | 16.1.3 | Yes |
| Operating System | cisco | ios_xe | 16.2.1 | Yes |
| Operating System | cisco | ios_xe | 16.2.2 | Yes |
| Operating System | cisco | ios_xe | 16.3.1 | Yes |
| Operating System | cisco | ios_xe | 16.3.1a | Yes |
| Operating System | cisco | ios_xe | 16.3.2 | Yes |
| Operating System | cisco | ios_xe | 16.3.3 | Yes |
| Operating System | cisco | ios_xe | 16.3.4 | Yes |
| Operating System | cisco | ios_xe | 16.3.5 | Yes |
| Operating System | cisco | ios_xe | 16.3.5b | Yes |
| Operating System | cisco | ios_xe | 16.3.6 | Yes |
| Operating System | cisco | ios_xe | 16.3.7 | Yes |
| Operating System | cisco | ios_xe | 16.3.8 | Yes |
| Operating System | cisco | ios_xe | 16.3.9 | Yes |
| Operating System | cisco | ios_xe | 16.3.10 | Yes |
| Operating System | cisco | ios_xe | 16.4.1 | Yes |
| Operating System | cisco | ios_xe | 16.4.2 | Yes |
| Operating System | cisco | ios_xe | 16.4.3 | Yes |
| Operating System | cisco | ios_xe | 16.5.1 | Yes |
| Operating System | cisco | ios_xe | 16.5.1a | Yes |
| Operating System | cisco | ios_xe | 16.5.1b | Yes |
| Operating System | cisco | ios_xe | 16.5.2 | Yes |
| Operating System | cisco | ios_xe | 16.5.3 | Yes |
| Operating System | cisco | ios_xe | 16.6.1 | Yes |
| Operating System | cisco | ios_xe | 16.6.2 | Yes |
| Operating System | cisco | ios_xe | 16.6.3 | Yes |
| Operating System | cisco | ios_xe | 16.6.4 | Yes |
| Operating System | cisco | ios_xe | 16.6.4a | Yes |
| Operating System | cisco | ios_xe | 16.6.4s | Yes |
| Operating System | cisco | ios_xe | 16.6.5 | Yes |
| Operating System | cisco | ios_xe | 16.6.5a | Yes |
| Operating System | cisco | ios_xe | 16.6.5b | Yes |
| Operating System | cisco | ios_xe | 16.6.6 | Yes |
| Operating System | cisco | ios_xe | 16.6.7 | Yes |
| Operating System | cisco | ios_xe | 16.6.7a | Yes |
| Operating System | cisco | ios_xe | 16.6.8 | Yes |
| Operating System | cisco | ios_xe | 16.7.1 | Yes |
| Operating System | cisco | ios_xe | 16.7.1a | Yes |
| Operating System | cisco | ios_xe | 16.7.1b | Yes |
| Operating System | cisco | ios_xe | 16.7.2 | Yes |
| Operating System | cisco | ios_xe | 16.7.3 | Yes |
| Operating System | cisco | ios_xe | 16.7.4 | Yes |
| Operating System | cisco | ios_xe | 16.8.1 | Yes |
| Operating System | cisco | ios_xe | 16.8.1a | Yes |
| Operating System | cisco | ios_xe | 16.8.1b | Yes |
| Operating System | cisco | ios_xe | 16.8.1c | Yes |
| Operating System | cisco | ios_xe | 16.8.1d | Yes |
| Operating System | cisco | ios_xe | 16.8.1e | Yes |
| Operating System | cisco | ios_xe | 16.8.1s | Yes |
| Operating System | cisco | ios_xe | 16.8.2 | Yes |
| Operating System | cisco | ios_xe | 16.8.3 | Yes |
| Operating System | cisco | ios_xe | 16.9.1 | Yes |
| Operating System | cisco | ios_xe | 16.9.1a | Yes |
| Operating System | cisco | ios_xe | 16.9.1b | Yes |
| Operating System | cisco | ios_xe | 16.9.1c | Yes |
| Operating System | cisco | ios_xe | 16.9.1d | Yes |
| Operating System | cisco | ios_xe | 16.9.1s | Yes |
| Operating System | cisco | ios_xe | 16.9.2 | Yes |
| Operating System | cisco | ios_xe | 16.9.2a | Yes |
| Operating System | cisco | ios_xe | 16.9.2s | Yes |
| Operating System | cisco | ios_xe | 16.9.3 | Yes |
| Operating System | cisco | ios_xe | 16.9.3a | Yes |
| Operating System | cisco | ios_xe | 16.9.3h | Yes |
| Operating System | cisco | ios_xe | 16.9.3s | Yes |
| Operating System | cisco | ios_xe | 16.9.4 | Yes |
| Operating System | cisco | ios_xe | 16.9.4c | Yes |
| Operating System | cisco | ios_xe | 16.9.5 | Yes |
| Operating System | cisco | ios_xe | 16.9.5f | Yes |
| Operating System | cisco | ios_xe | 16.10.1 | Yes |
| Operating System | cisco | ios_xe | 16.10.1a | Yes |
| Operating System | cisco | ios_xe | 16.10.1b | Yes |
| Operating System | cisco | ios_xe | 16.10.1c | Yes |
| Operating System | cisco | ios_xe | 16.10.1d | Yes |
| Operating System | cisco | ios_xe | 16.10.1e | Yes |
| Operating System | cisco | ios_xe | 16.10.1f | Yes |
| Operating System | cisco | ios_xe | 16.10.1g | Yes |
| Operating System | cisco | ios_xe | 16.10.1s | Yes |
| Operating System | cisco | ios_xe | 16.10.2 | Yes |
| Operating System | cisco | ios_xe | 16.10.3 | Yes |
| Operating System | cisco | ios_xe | 16.11.1 | Yes |
| Operating System | cisco | ios_xe | 16.11.1a | Yes |
| Operating System | cisco | ios_xe | 16.11.1b | Yes |
| Operating System | cisco | ios_xe | 16.11.1c | Yes |
| Operating System | cisco | ios_xe | 16.11.1s | Yes |
| Operating System | cisco | ios_xe | 16.11.2 | Yes |
| Operating System | cisco | ios_xe | 16.12.1 | Yes |
| Operating System | cisco | ios_xe | 16.12.1a | Yes |
| Operating System | cisco | ios_xe | 16.12.1c | Yes |
| Operating System | cisco | ios_xe | 16.12.1s | Yes |
| Operating System | cisco | ios_xe | 16.12.1t | Yes |
| Operating System | cisco | ios_xe | 16.12.1w | Yes |
| Operating System | cisco | ios_xe | 16.12.1x | Yes |
| Operating System | cisco | ios_xe | 16.12.1y | Yes |
| Operating System | cisco | ios_xe | 16.12.1z | Yes |
| Operating System | cisco | ios_xe | 16.12.1za | Yes |
| Operating System | cisco | ios_xe | 16.12.2 | Yes |
| Operating System | cisco | ios_xe | 16.12.2a | Yes |
| Operating System | cisco | ios_xe | 16.12.2s | Yes |
| Operating System | cisco | ios_xe | 16.12.2t | Yes |
| Operating System | cisco | ios_xe | 16.12.3 | Yes |
| Operating System | cisco | ios_xe | 16.12.3a | Yes |
| Operating System | cisco | ios_xe | 16.12.3s | Yes |
| Operating System | cisco | ios_xe | 16.12.4 | Yes |
| Operating System | cisco | ios_xe | 16.12.4a | Yes |
| Operating System | cisco | ios_xe | 17.1.1 | Yes |
| Operating System | cisco | ios_xe | 17.1.1a | Yes |
| Operating System | cisco | ios_xe | 17.1.1s | Yes |
| Operating System | cisco | ios_xe | 17.1.1t | Yes |
| Operating System | cisco | ios_xe | 17.1.2 | Yes |
| Operating System | cisco | ios_xe | 17.2.1 | Yes |
| Operating System | cisco | ios_xe | 17.2.1a | Yes |
| Operating System | cisco | ios_xe | 17.2.1r | Yes |
| Operating System | cisco | ios_xe | 17.2.1v | 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.