Is CVE-2018-0171 actively exploited?

Yes. CVE-2018-0171 is listed in the CISA Known Exploited Vulnerabilities (KEV) catalog, which means exploitation in the wild has been confirmed.

Can CVE-2018-0171 be exploited remotely?

The attack vector of CVE-2018-0171 has not been classified yet.

What is the CVSS score of CVE-2018-0171?

CVE-2018-0171 has not received a CVSS score yet.

HOME VULNERABILITIESCVE-2018-0171

HIGHCISA KEVIN THE WILD

CVE-2018-0171

Published: November 3, 2021

EPSS:93.12%probability of exploitation in 30 daysPercentile:99.8th

Official Description

Cisco IOS and IOS XE Software improperly validates packet data, allowing an unauthenticated, remote attacker to trigger a reload of an affected device, cause a denial-of-service (DoS) condition, or perform code execution on the affected device.

NVD Source

CISA KEV Advisory

Cisco IOS and IOS XE Software Smart Install Remote Code Execution Vulnerability

Added to KEV: 2021-11-03Federal patch deadline: 2022-05-03

Required Action (CISA)

Apply updates per vendor instructions.

Risk Analysis

This vulnerability in Cisco IOS and IOS XE Software allows an unauthenticated, remote attacker to trigger a device reload, cause a denial-of-service, or execute code due to improper packet data validation. The high EPSS score of 0.93123 indicates a strong likelihood of exploitation, and its presence in CISA's KEV confirms it is being actively exploited.

This vulnerability is actively exploited in the wild and is part of CISA's Known Exploited Vulnerabilities Catalog. Attackers can remotely exploit this flaw without authentication.

Recommended Action

Apply the latest security updates and patches for Cisco IOS and IOS XE Software. Regularly review and update network device configurations to enhance security posture.

Generated by the CTIWATCH analysis pipeline from this CVE's metadata (CVSS, EPSS, KEV status, exploit intelligence). Verify against vendor advisories before acting.

Technical Analysis

CVE-2018-0171 requires local access, meaning attackers must already have a foothold on the target system.

Exploitation requires some privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

CISA has added CVE-2018-0171 to the Known Exploited Vulnerabilities (KEV) catalog, confirming active exploitation in the wild. U.S. federal agencies are required to patch this within the mandated timeframe, and all organizations should treat remediation as urgent.