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CVE-2026-20273

—
CVSS 3.1
8.6 high
EPSS
<1%p20
Published
()
Modified
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.

Vendors
cisco
Products
ios xe
Weakness
CWE-20
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
NVD CVE.org GitHub PoCs EPSS (0.3%)

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