Improper input validation in Cisco Nx-Os Software For Nexus 3000 Series 7.0(3)i7(3)
CVE-2018-0456
A vulnerability in the Simple Network Management Protocol (SNMP) input packet processor of Cisco NX-OS Software could allow an authenticated, remote attacker to cause the SNMP application of an affected device to restart unexpectedly. The vulnerability is due to improper validation of SNMP protocol data units (PDUs) in SNMP packets. An attacker could exploit this vulnerability by sending a crafted SNMP packet to an affected device. A successful exploit could allow the attacker to cause the SNMP application to restart multiple times, leading to a system-level restart and a denial of service (DoS) condition.
Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)
EPSS: 0.032 (86.7th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.7 (High). Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H.
Affected products
- Cisco Nx-os Software For Nexus 3000 Series 7.0(3)i7(3) — versions n/a
- Cisco Nx-os — versions 9.2\(0.43\)
Weakness classification (CWE)
References
- psirt@cisco.com (x_refsource_CISCO, vendor-advisory, Vendor Advisory)
- psirt@cisco.com (VDB Entry, Third Party Advisory, vdb-entry, x_refsource_SECTRACK)
- psirt@cisco.com (VDB Entry, Third Party Advisory, vdb-entry, x_refsource_BID)
Frequently asked questions
- What is CVE-2018-0456?
- CVE-2018-0456 is a high-severity vulnerability in Cisco Nx-Os Software For Nexus 3000 Series 7.0(3)i7(3), classified under Improper Input Validation. CVSS score: 7.7/10. Published 2018-10-17.
- How severe is CVE-2018-0456?
- High severity. CVSS v3 base score is 7.7 out of 10.