CVE-2020-3207
Last modified
CVE-2020-3207 is a medium-severity vulnerability rated 6.7/10 on the CVSS scale. A vulnerability in the processing of boot options of specific Cisco IOS XE Software switches could allow an authenticated, local attacker with root shell access to the underlying operating system (OS) to conduct a command injection attack during device boot. This vulnerability is due to insufficient input validation checks while processing boot options. EPSS estimates a 0.61% chance of exploitation in the next 30 days.
Description
A vulnerability in the processing of boot options of specific Cisco IOS XE Software switches could allow an authenticated, local attacker with root shell access to the underlying operating system (OS) to conduct a command injection attack during device boot. This vulnerability is due to insufficient input validation checks while processing boot options. An attacker could exploit this vulnerability by modifying device boot options to execute attacker-provided code. A successful exploit may allow an attacker to bypass the Secure Boot process and execute malicious code on an affected device with root-level privileges.
Metrics
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Cisco | Ios Xe | 16.9.2 |
| Cisco | Ios Xe | 16.9.2a |
| Cisco | Ios Xe | 16.9.2s |
| Cisco | Ios Xe | 16.9.3 |
| Cisco | Ios Xe | 16.9.3a |
| Cisco | Ios Xe | 16.9.3h |
| Cisco | Ios Xe | 16.9.3s |
| Cisco | Ios Xe | 16.9.4 |
| Cisco | Ios Xe | 16.10.1 |
| Cisco | Ios Xe | 16.10.1e |
| Cisco | Ios Xe | 16.10.1s |
| Cisco | Ios Xe | 16.11.1 |
| Cisco | Ios Xe | 16.11.1a |
| Cisco | Ios Xe | 16.11.1b |
| Cisco | Ios Xe | 16.11.1c |
| Cisco | Ios Xe | 16.11.1s |
| Cisco | Ios Xe | 16.12.1 |
| Cisco | Ios Xe | 16.12.1c |
| Cisco | Ios Xe | 16.12.1s |
References
Timeline
- Published
- Last Modified
- Status
- Modified
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How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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