CVE-2016-6367VulnerabilityPublished 05/24/2022Updated 10/24/2026

CVE-2016-6367: Cisco Adaptive Security Appliance (ASA) CLI Remote Code Execution Vulnerability

Affects Cisco Adaptive Security Appliance (ASA)Source CISA KEV

Severity

High

No CVSS score published yet

Exploitation: Actively exploited – in CISA KEV since 05/24/2022
KEV deadline: 06/14/2022
EPSS: 22.6% chance of exploitation in 30 days – higher than 97% of CVEs

What to do

CISA required action

Apply updates per vendor instructions.

nvd.nist.gov/vuln/detail/CVE-2016-6367 (opens in a new tab)

Description

CVE-2016-6367 is a high-severity vulnerability in the command-line interface (CLI) parser of Cisco Adaptive Security Appliance (ASA) software. It allows an authenticated local attacker to cause a denial-of-service (DoS) condition or potentially execute arbitrary code. The vulnerability has been exploited in the wild. No specific affected versions or patch information are provided in the available data.

Summary

This vulnerability exists in the CLI parser of Cisco ASA software, where an authenticated local attacker can exploit the flaw to create a denial-of-service condition or potentially execute arbitrary code. The issue is identified as CWE-77, which relates to improper neutralization of special elements used in a command ('Command Injection'). Exploitation requires local authenticated access. The vulnerability has been observed to be exploited in the wild, indicating active threat usage. No explicit patch or remediation details are provided in the input data.

Impact

An attacker with authenticated local access to the Cisco ASA device could exploit this vulnerability to disrupt service by causing a denial-of-service or potentially execute arbitrary code, which could lead to full compromise of the affected device. The presence of known exploits in the wild increases the risk to affected environments.

Mitigation

Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is confirmed, restrict local authenticated access to trusted administrators only and monitor for suspicious activity related to CLI usage. Follow Cisco's official advisories for updates and apply patches promptly once available.

Weaknesses

CWE-77Command Injection (opens in a new tab)

What to do

Description

AnalysisAI-generated, updated 10/24/2026, 11:42:09 UTC

Weaknesses

References

Related threats