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MEDIUM

Cisco Secure Firewall Adaptive Security Appliance and Secure Firewall Threat Defense Software Lua Code Injection Vulnerability

Published Mar 4, 2026

Description

A vulnerability in a small subset of CLI commands that are used on Cisco Secure Firewall Adaptive Security Appliance (ASA) Software and Cisco Secure Firewall Threat Defense (FTD) Software could allow an authenticated, local attacker to craft Lua code that could be used on the underlying operating system as root. This vulnerability exists because user-provided input is not properly sanitized. An attacker could exploit this vulnerability by crafting valid Lua code and submitting it as a malicious parameter for a CLI command. A successful exploit could allow the attacker to inject Lua code, which could lead to arbitrary code execution as the root user. To exploit this vulnerability, an attacker must have valid Administrator credentials.

Affected products

Remediation

No remediation recorded yet.

Metrics

Weaknesses (1)

CWE-78

OS Command Injection

References (1)

Change history (0)

No recorded changes yet.

Sources
CVE.org / MITRE
Status PUBLISHED
Assigner cisco
Published Mar 4, 2026
Updated Mar 5, 2026
Reserved Oct 8, 2025
Link CVE-2026-20008
CISA Vulnrichment
Updated Mar 5, 2026
NVD
Status Analyzed
Modified Aug 11, 2026
Link CVE-2026-20008
Red Hat
Severity n/a
Public date n/a
Links CVE-2026-20008