VULNERABILITY INTELLIGENCE

CVE-2020-3503

CVSS score6 MEDIUM
EPSS probability0.28%
CISA KEVNot currently listed
Published2020-09-24
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N

Description

A vulnerability in the file system permissions of Cisco IOS XE Software could allow an authenticated, local attacker to obtain read and write access to critical configuration or system files. The vulnerability is due to insufficient file system permissions on an affected device. An attacker could exploit this vulnerability by connecting to an affected device's guest shell, and accessing or modifying restricted files. A successful exploit could allow the attacker to view or modify restricted information or configurations that are normally not accessible to system administrators.

Weakness classification

  • CWE-284: Improper Access Control
  • CWE-732: Incorrect Permission Assignment for Critical Resource

Primary references