CVE-2020-3545 MEDIUM

CVE-2020-3545: Cisco FXOS Software Buffer Overflow Vulnerability

Vendor Cisco
Product Cisco Firepower Extensible Operating System (FXOS)
Weakness CWE-119
Published September 4, 2020
Last update November 13, 2024

CVSS base score

6.0/10
Attack vector Local
Attack complexity Low
Privileges required High
User interaction None
Confidentiality High
Integrity High

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N

What the vulnerability does

01Description

A vulnerability in Cisco FXOS Software could allow an authenticated, local attacker with administrative credentials to cause a buffer overflow condition. The vulnerability is due to incorrect bounds checking of values that are parsed from a specific file. An attacker could exploit this vulnerability by supplying a crafted file that, when it is processed, may cause a stack-based buffer overflow. A successful exploit could allow the attacker to execute arbitrary code on the underlying operating system with root privileges. An attacker would need to have valid administrative credentials to exploit this vulnerability.

Key dates

02Disclosure timeline

September 4, 2020 CVE published
November 13, 2024 Record updated