Vulnerability 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.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Cisco | Firepower Extensible Operating System | >= 1.1, < 1.1.4.179 |
| Cisco | Firepower 4110 | - |
| Cisco | Firepower 4112 | - |
| Cisco | Firepower 4115 | - |
| Cisco | Firepower 4120 | - |
| Cisco | Firepower 4125 | - |
| Cisco | Firepower 4140 | - |
| Cisco | Firepower 4145 | - |
| Cisco | Firepower 4150 | - |
| Cisco | Firepower 9300 | - |
| Cisco | Nx-Os | 6.0\(2\)a3\(1\) |
| Cisco | Mds 9100 | - |
| Cisco | Mds 9200 | - |
| Cisco | Mds 9500 | - |
| Cisco | Mds 9700 | - |
| Cisco | Nexus 3016 | - |
| Cisco | Nexus 3048 | - |
| Cisco | Nexus 3064 | - |
| Cisco | Nexus 3064-T | - |
| Cisco | Nexus 31108Pc-V | - |
Related Weaknesses (CWE)
References
- https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-fVendor Advisory
- https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-fVendor Advisory
FAQ
What is CVE-2020-3517?
CVE-2020-3517 is a vulnerability with a CVSS score of 8.6 (HIGH). 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 ...
How severe is CVE-2020-3517?
CVE-2020-3517 has been rated HIGH with a CVSS base score of 8.6/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2020-3517?
Check the references section above for vendor advisories and patch information. Affected products include: Cisco Firepower Extensible Operating System, Cisco Firepower 4110, Cisco Firepower 4112, Cisco Firepower 4115, Cisco Firepower 4120.