Is CVE-2017-12232 actively exploited?

Yes. CVE-2017-12232 is listed in the CISA Known Exploited Vulnerabilities (KEV) catalog, which means exploitation in the wild has been confirmed.

Can CVE-2017-12232 be exploited remotely?

The attack vector of CVE-2017-12232 has not been classified yet.

What is the CVSS score of CVE-2017-12232?

CVE-2017-12232 has not received a CVSS score yet.

HOME VULNERABILITIESCVE-2017-12232

HIGHCISA KEVIN THE WILD

CVE-2017-12232

Published: March 3, 2022

EPSS:0.99%probability of exploitation in 30 daysPercentile:76.5th

Official Description

A vulnerability in the implementation of a protocol in Cisco Integrated Services Routers Generation 2 (ISR G2) Routers running Cisco IOS could allow an unauthenticated, adjacent attacker to cause an affected device to reload, resulting in a denial of service.

NVD Source

CISA KEV Advisory

Cisco IOS Software for Cisco Integrated Services Routers Denial-of-Service Vulnerability

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

Required Action (CISA)

Apply updates per vendor instructions.

Risk Analysis

This high-severity vulnerability in Cisco Integrated Services Routers Generation 2 (ISR G2) running Cisco IOS allows an unauthenticated, adjacent attacker to cause a device reload, resulting in a denial of service. The confirmed in-the-wild exploitation and inclusion in CISA's KEV catalog make this an urgent concern, despite its age and low EPSS score.

This vulnerability is actively exploited in the wild and is included in CISA's Known Exploited Vulnerabilities catalog.

Recommended Action

Apply all available security updates for Cisco IOS on ISR G2 Routers. Implement network segmentation and access controls to limit exposure to adjacent attackers.

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-2017-12232 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-2017-12232 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.