What is the CVSS score of CVE-2026-20008?

CVE-2026-20008 has a CVSS 3.1 base score of 6.0 (Medium). CVSS vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N. EPSS exploitation probability: 0.0%.

Which versions of Cisco are affected by CVE-2026-20008?

CVE-2026-20008 presents moderate security risk, a OS command injection vulnerability rated CVSS 6.0. Exploitation could allow attackers to execute code or inject malicious input.

How to fix or mitigate CVE-2026-20008?

Within 30 days: Identify affected systems and apply vendor patches as part of regular patch cycle. Validate input sanitization for user-controlled parameters.

Cisco CVE-2026-20008

MEDIUM

OS Command Injection (CWE-78)

2026-03-04 psirt@cisco.com

Cisco RCE Command Injection

6.0

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

6.0 MEDIUM

AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N

Attack Vector

Local

Attack Complexity

Low

Privileges Required

High

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

None

Lifecycle Timeline

Analysis Generated

Mar 12, 2026 - 22:05 vuln.today

CVE Published

Mar 04, 2026 - 18:16 nvd

MEDIUM 6.0

DescriptionCVE.org

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.

AnalysisAI

Insufficient input sanitization in select CLI commands on Cisco Secure Firewall ASA and FTD Software allows authenticated local administrators to execute arbitrary code as root by injecting malicious Lua code. An attacker with valid administrator credentials can craft specially formatted parameters to achieve code execution with elevated privileges. No patch is currently available.

Technical ContextAI

Classified as CWE-78 (OS Command Injection). Affects a small subset of CLI commands. 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 ma