OCTOBER 7, 2026
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Case File

CVE-2026-20329

CRITICAL · CVSS 9.9 EPSS 0.45%

Source: NVD + CISA KEV + EPSS · Published 2026-09-16 · Last synced 2026-10-07

CyberRota Analysis

AI-Generated

Cisco Secure Adaptive Security Appliance Software, Secure Firewall Threat Defense Software, and Secure Firewall Management Center Software are vulnerable due to improper handling of exceptional conditions, which could lead to critical security breaches. The impact includes potential unauthorized access and exploitation of the affected systems, making it imperative for organizations using these Cisco products to prioritize immediate patching and mitigation efforts. Security teams and network administrators should act swiftly to safeguard their environments against potential attacks leveraging these vulnerabilities.

CVE
CVE-2026-20329
Severity
CRITICAL
CVSS
9.9
EPSS
0.45%
Cisco

Original NVD Description

As part of Cisco's ongoing commitment to proactive security and product quality, the Cisco Secure Adaptive Security Appliance Software, Cisco Secure Firewall Threat Defense Software and Cisco Secure Firewall Management Center 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-2026-20329 are related to issues concerning improper handling of exceptional conditions that are grouped under the Common Weakness Enumeration (CWE) Pillar CWE-703.