CVE-2021-1529
Last modified
CVE-2021-1529 is a high-severity vulnerability rated 7.8/10 on the CVSS scale. A vulnerability in the CLI of Cisco IOS XE SD-WAN Software could allow an authenticated, local attacker to execute arbitrary commands with root privileges. The vulnerability is due to insufficient input validation by the system CLI. EPSS estimates a 0.30% chance of exploitation in the next 30 days.
Description
A vulnerability in the CLI of Cisco IOS XE SD-WAN Software could allow an authenticated, local attacker to execute arbitrary commands with root privileges. The vulnerability is due to insufficient input validation by the system CLI. An attacker could exploit this vulnerability by authenticating to an affected device and submitting crafted input to the system CLI. A successful exploit could allow the attacker to execute commands on the underlying operating system with root privileges.
Metrics
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Cisco | Ios Xe | >= 16.12, <= 17.0 |
| Cisco | Ios Xe | >= 17.2, < 17.2.3 |
| Cisco | Ios Xe | >= 17.3, < 17.3.4 |
| Cisco | Ios Xe | >= 17.4, < 17.4.2 |
| Cisco | Ios Xe | >= 17.5, < 17.5.1a |
| Cisco | Ios Xe | 17.6.0 |
| Cisco | Ios Xe Sd-Wan | >= 17.2.1r |
References
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
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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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