AUGUST 16, 2026
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Case File

CVE-2026-20273

HIGH · CVSS 8.6 EPSS 0.27%

Source: NVD + CISA KEV + EPSS · Published 2026-08-05 · Last synced 2026-08-16

CyberRota Analysis

AI-Generated

Cisco IOS XE Software is vulnerable due to improper input validation, which could allow an attacker to exploit these weaknesses to gain unauthorized access or disrupt services. The high severity rating (CVSS 8.6) indicates a significant risk, making it critical for organizations using affected Cisco products to prioritize patching and updating their systems to mitigate potential threats. Network administrators and security teams should take immediate action to ensure their environments are secured against these vulnerabilities.

CVE
CVE-2026-20273
Severity
HIGH
CVSS
8.6
EPSS
0.27%
Cisco

Original NVD 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.