CVE-2020-3517
Last modified
CVE-2020-3517 is a high-severity vulnerability rated 8.6/10 on the CVSS scale. A vulnerability in the Cisco Fabric Services component of Cisco FXOS Software and Cisco NX-OS Software could allow an unauthenticated attacker to cause process crashes, which could result in a denial of service (DoS) condition on an affected device. The attack vector is configuration dependent and could be remote or adjacent. EPSS estimates a 1.37% chance of exploitation in the next 30 days.
Description
A vulnerability in the Cisco Fabric Services component of Cisco FXOS Software and Cisco NX-OS Software could allow an unauthenticated attacker to cause process crashes, which could result in a denial of service (DoS) condition on an affected device. The attack vector is configuration dependent and could be remote or adjacent. For more information about the attack vector, see the Details section of this advisory. The vulnerability is due to insufficient error handling when the affected software parses Cisco Fabric Services messages. An attacker could exploit this vulnerability by sending malicious Cisco Fabric Services messages to an affected device. A successful exploit could allow the attacker to cause a reload of an affected device, which could result in a DoS condition.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Cisco | Firepower Extensible Operating System | >= 1.1, < 1.1.4.179 |
| Cisco | Firepower Extensible Operating System | >= 2.0, < 2.0.1.153 |
| Cisco | Firepower Extensible Operating System | >= 2.1, < 2.1.1.86 |
| Cisco | Firepower Extensible Operating System | >= 2.2, < 2.2.1.70 |
| Cisco | Nx-Os | 6.0\(2\)a3\(1\) |
| Cisco | Nx-Os | 6.0\(2\)a3\(2\) |
| Cisco | Nx-Os | 6.0\(2\)a3\(4\) |
| Cisco | Nx-Os | 6.0\(2\)a4\(1\) |
| Cisco | Nx-Os | 6.0\(2\)a4\(2\) |
| Cisco | Nx-Os | 6.0\(2\)a4\(3\) |
| Cisco | Nx-Os | 6.0\(2\)a4\(4\) |
| Cisco | Nx-Os | 6.0\(2\)a4\(5\) |
| Cisco | Nx-Os | 6.0\(2\)a4\(6\) |
| Cisco | Nx-Os | 6.0\(2\)a6\(1\) |
| Cisco | Nx-Os | 6.0\(2\)a6\(1a\) |
| Cisco | Nx-Os | 6.0\(2\)a6\(2\) |
| Cisco | Nx-Os | 6.0\(2\)a6\(2a\) |
| Cisco | Nx-Os | 6.0\(2\)a6\(3\) |
| Cisco | Nx-Os | 6.0\(2\)a6\(3a\) |
| Cisco | Nx-Os | 6.0\(2\)a6\(4\) |
| Cisco | Nx-Os | 6.0\(2\)a6\(4a\) |
| Cisco | Nx-Os | 6.0\(2\)a6\(5\) |
| Cisco | Nx-Os | 6.0\(2\)a6\(5a\) |
| Cisco | Nx-Os | 6.0\(2\)a6\(5b\) |
| Cisco | Nx-Os | 6.0\(2\)a6\(6\) |
| Cisco | Nx-Os | 6.0\(2\)a6\(7\) |
| Cisco | Nx-Os | 6.0\(2\)a6\(8\) |
| Cisco | Nx-Os | 6.0\(2\)a7\(1\) |
| Cisco | Nx-Os | 6.0\(2\)a7\(1a\) |
| Cisco | Nx-Os | 6.0\(2\)a7\(2\) |
| Cisco | Nx-Os | 6.0\(2\)a7\(2a\) |
| Cisco | Nx-Os | 6.0\(2\)a8 |
| Cisco | Nx-Os | 6.0\(2\)a8\(1\) |
| Cisco | Nx-Os | 6.0\(2\)a8\(2\) |
| Cisco | Nx-Os | 6.0\(2\)a8\(3\) |
| Cisco | Nx-Os | 6.0\(2\)a8\(4\) |
| Cisco | Nx-Os | 6.0\(2\)a8\(4a\) |
| Cisco | Nx-Os | 6.0\(2\)a8\(5\) |
| Cisco | Nx-Os | 6.0\(2\)a8\(6\) |
| Cisco | Nx-Os | 6.0\(2\)a8\(6.213\) |
| Cisco | Nx-Os | 6.0\(2\)a8\(7\) |
| Cisco | Nx-Os | 6.0\(2\)a8\(7a\) |
| Cisco | Nx-Os | 6.0\(2\)a8\(7b\) |
| Cisco | Nx-Os | 6.0\(2\)a8\(8\) |
| Cisco | Nx-Os | 6.0\(2\)a8\(9\) |
| Cisco | Nx-Os | 6.0\(2\)a8\(9.7\) |
| Cisco | Nx-Os | 6.0\(2\)a8\(10\) |
| Cisco | Nx-Os | 6.0\(2\)a8\(10a\) |
| Cisco | Nx-Os | 6.0\(2\)a8\(11\) |
| Cisco | Nx-Os | 6.0\(2\)a8\(11a\) |
Showing 50 of 290 affected configurations. See NVD for the full list.
References
Timeline
- Published
- Last Modified
- Status
- Modified
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