Is CVE-2017-3881 actively exploited?

Yes. CVE-2017-3881 is listed in the CISA Known Exploited Vulnerabilities (KEV) catalog, which means exploitation in the wild has been confirmed.

Can CVE-2017-3881 be exploited remotely?

The attack vector of CVE-2017-3881 has not been classified yet.

What is the CVSS score of CVE-2017-3881?

CVE-2017-3881 has not received a CVSS score yet.

HOME VULNERABILITIESCVE-2017-3881

HIGHCISA KEVIN THE WILD

CVE-2017-3881

Published: March 25, 2022

EPSS:94.28%probability of exploitation in 30 daysPercentile:99.9th

Official Description

A vulnerability in the Cisco Cluster Management Protocol (CMP) processing code in Cisco IOS and Cisco IOS XE Software could allow an unauthenticated, remote attacker to cause a reload of an affected device or remotely execute code with elevated privileges.

NVD Source

CISA KEV Advisory

Cisco IOS and IOS XE Remote Code Execution Vulnerability

Added to KEV: 2022-03-25Federal patch deadline: 2022-04-15

Required Action (CISA)

Apply updates per vendor instructions.

Risk Analysis

A vulnerability in Cisco IOS and IOS XE Software's Cluster Management Protocol (CMP) processing code allows an unauthenticated, remote attacker to cause a device reload or execute code with elevated privileges. The high EPSS score of 0.94282 and its presence in the KEV catalog signify a high probability of exploitation and critical urgency.

This vulnerability is actively being exploited in the wild and is listed in CISA's KEV catalog, confirming its active use by threat actors. This vulnerability is remotely exploitable.

Recommended Action

Update Cisco IOS and IOS XE Software to the latest versions that address this CMP vulnerability. Restrict access to CMP services to trusted networks and hosts.

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-2017-3881 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-2017-3881 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.