CVE-2026-20273

Published Aug 5, 2026

Last updated 7 days ago

Overview

Description
As part of Cisco's ongoing commitment to proactive security and product quality, the Cisco IOS XE Software engineering team has conducted a comprehensive internal security review. This review resulted in a software hardening release that addresses multiple internally discovered vulnerabilities. The vulnerabilities tracked by CVE-2026-20273 are related to improper input validation issues that are grouped under the Common Weakness Enumeration (CWE) Pillar CWE-20.
Source
psirt@cisco.com
NVD status
Analyzed
Products
ios_xe

Risk scores

CVSS 3.1

Type
Secondary
Base score
8.6
Impact score
4
Exploitability score
3.9
Vector string
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
Severity
HIGH

Weaknesses

psirt@cisco.com
CWE-20

Social media

Hype score
Not currently trending

Configurations