Risk | Medium |
Patch available | YES |
Number of vulnerabilities | 1 |
CVE-ID | CVE-2020-3170 |
CWE-ID | CWE-20 |
Exploitation vector | Network |
Public exploit | N/A |
Vulnerable software Subscribe |
Cisco NX-OS Operating systems & Components / Operating system Cisco MDS 9000 Series Multilayer Switches Hardware solutions / Routers & switches, VoIP, GSM, etc Cisco Nexus 7000 Series Switches Hardware solutions / Routers & switches, VoIP, GSM, etc |
Vendor | Cisco Systems, Inc |
Security Bulletin
This security bulletin contains one medium risk vulnerability.
EUVDB-ID: #VU25659
Risk: Medium
CVSSv3.1: 4.6 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L/E:U/RL:O/RC:C]
CVE-ID: CVE-2020-3170
CWE-ID:
CWE-20 - Improper input validation
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to incorrect validation of the HTTP header of a request that is sent to the NX-API. A remote attacker can send a specially crafted HTTP request and cause a denial of service condition in the NX-API service.
MitigationInstall updates from vendor's website.
Vulnerable software versionsCisco NX-OS: before 8.4.1
Cisco MDS 9000 Series Multilayer Switches: All versions
Cisco Nexus 7000 Series Switches: All versions
External linkshttp://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20200226-nxos-api-dos
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.