VULNERABILITY INTELLIGENCE
CVE-2024-20397
CVSS score5.2 MEDIUM
EPSS probability0.30%
CISA KEVNot currently listed
Published2024-12-04
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:N
Description
A vulnerability in the bootloader of Cisco NX-OS Software could allow an unauthenticated attacker with physical access to an affected device, or an authenticated, local attacker with administrative credentials, to bypass NX-OS image signature verification. This vulnerability is due to insecure bootloader settings. An attacker could exploit this vulnerability by executing a series of bootloader commands. A successful exploit could allow the attacker to bypass NX-OS image signature verification and load unverified software.
Weakness classification
- psirt@cisco.com: CWE-284