Is CVE-2017-12238 actively exploited?

Yes. CVE-2017-12238 is listed in the CISA Known Exploited Vulnerabilities (KEV) catalog, which means exploitation in the wild has been confirmed.

Can CVE-2017-12238 be exploited remotely?

The attack vector of CVE-2017-12238 has not been classified yet.

What is the CVSS score of CVE-2017-12238?

CVE-2017-12238 has not received a CVSS score yet.

HOME VULNERABILITIESCVE-2017-12238

HIGHCISA KEVIN THE WILD

CVE-2017-12238

Published: March 3, 2022

EPSS:1.15%probability of exploitation in 30 daysPercentile:78.2th

Official Description

A vulnerability in the Virtual Private LAN Service (VPLS) code of Cisco IOS for Cisco Catalyst 6800 Series Switches could allow an unauthenticated, adjacent attacker to cause a denial of service.

NVD Source

CISA KEV Advisory

Cisco Catalyst 6800 Series Switches VPLS Denial-of-Service Vulnerability

A vulnerability in the Virtual Private LAN Service (VPLS) code of Cisco IOS for Cisco Catalyst 6800 Series Switches could allow an unauthenticated, adjacent attacker to cause a denial of service.

Added to KEV: 2022-03-03Federal patch deadline: 2022-03-24

Required Action (CISA)

Apply updates per vendor instructions.

Risk Analysis

A vulnerability in the Virtual Private LAN Service (VPLS) code of Cisco IOS for Cisco Catalyst 6800 Series Switches can lead to a denial of service. This high-severity flaw is confirmed to be actively exploited and is in CISA's KEV catalog. The EPSS score of 0.01154 indicates a low but present likelihood of exploitation.

This vulnerability is actively being exploited in the wild and is listed in CISA's KEV catalog. An unauthenticated, adjacent attacker can cause a denial of service.

Recommended Action

Apply available patches or updates for Cisco IOS on Cisco Catalyst 6800 Series Switches. Implement network segmentation and access controls to limit adjacent attacker access.

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-2017-12238 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-2017-12238 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.