Denial of service in Cisco Firepower 4100 Series, Firepower 9300 Security Appliances, and UCS 6300 Series Fabric Interconnects
| Risk | Medium |
| Patch available | YES |
| Number of vulnerabilities | 1 |
| CVE-ID | CVE-2023-20200 |
| CWE-ID | CWE-20 |
| Exploitation vector | Network |
| Public exploit | N/A |
| Vulnerable software Subscribe |
Cisco FXOS Operating systems & Components / Operating system UCS 6300 Series Fabric Interconnects Hardware solutions / Routers & switches, VoIP, GSM, etc Firepower 4100 Series Security Appliances Hardware solutions / Routers & switches, VoIP, GSM, etc Firepower 9300 Series Security Appliances Hardware solutions / Security hardware applicances Cisco UCS Other software / Other software solutions |
| Vendor | Cisco Systems, Inc |
Security Bulletin
This security bulletin contains one medium risk vulnerability.
1) Input validation error
EUVDB-ID: #VU79993
Risk: Medium
CVSSv3.1: 6.7 [CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H/E:U/RL:O/RC:C]
CVE-ID: CVE-2023-20200
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 insufficient validation of user-supplied input in the Simple Network Management Protocol (SNMP) service. A remote user can send a specially crafted SNMP request and perform a denial of service (DoS) attack.
MitigationInstall update from vendor's website.
Vulnerable software versionsCisco FXOS: 2.0.1.37 - 2.3.1.93
UCS 6300 Series Fabric Interconnects: All versions
Firepower 4100 Series Security Appliances: All versions
Firepower 9300 Series Security Appliances: All versions
Cisco UCS: before 4.2(3d)UCSM
External linksQ & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
