Vulnerability Database

313,825

Total vulnerabilities in the database

CVE-2017-12331

A vulnerability in Cisco NX-OS System Software could allow an authenticated, local attacker to bypass signature verification when loading a software patch. The vulnerability is due to insufficient NX-OS signature verification for software patches. An authenticated, local attacker could exploit this vulnerability to bypass signature verification and load a crafted, unsigned software patch on a targeted device. The attacker would need valid administrator credentials to perform this exploit. This vulnerability affects the following products running Cisco NX-OS System Software: Multilayer Director Switches, Nexus 7000 Series Switches, Nexus 7700 Series Switches, Unified Computing System Manager. Cisco Bug IDs: CSCvf16494, CSCvf23655.

  • Published: Nov 30, 2017
  • Updated: Nov 9, 2025
  • CVE: CVE-2017-12331
  • Severity: High
  • Exploit:

CVSS v2:

  • Severity: High
  • Score: 7.2
  • AV:L/AC:L/Au:N/C:C/I:C/A:C

CWEs:

Software From Fixed in
cisco / nx-os 8.1(1) 8.1(1).x
cisco / unified_computing_system 7.0(0)hsk(0.357) 7.0(0)hsk(0.357).x