Is CVE-2017-0143 actively exploited?

Yes. CVE-2017-0143 is listed in the CISA Known Exploited Vulnerabilities (KEV) catalog, which means exploitation in the wild has been confirmed.

Can CVE-2017-0143 be exploited remotely?

The attack vector of CVE-2017-0143 has not been classified yet.

What is the CVSS score of CVE-2017-0143?

CVE-2017-0143 has not received a CVSS score yet.

HOME VULNERABILITIESCVE-2017-0143

HIGHCISA KEVIN THE WILD

CVE-2017-0143

Published: November 3, 2021

EPSS:94.02%probability of exploitation in 30 daysPercentile:99.9th

Official Description

Microsoft Windows Server Message Block 1.0 (SMBv1) contains an unspecified vulnerability that allows for remote code execution.

NVD Source

CISA KEV Advisory

Microsoft Windows Server Message Block (SMBv1) Remote Code Execution Vulnerability

Microsoft Windows Server Message Block 1.0 (SMBv1) contains an unspecified vulnerability that allows for remote code execution.

Added to KEV: 2021-11-03Federal patch deadline: 2022-05-03⚠ USED IN RANSOMWARE CAMPAIGNS

Required Action (CISA)

Apply updates per vendor instructions.

Risk Analysis

This vulnerability in Microsoft Windows Server Message Block 1.0 (SMBv1) allows for remote code execution. The high EPSS score and confirmed exploitation in the wild indicate this is a severe and actively exploited flaw.

This vulnerability is actively exploited in the wild and is listed in CISA's KEV catalog. It is remotely exploitable.

Recommended Action

Disable SMBv1 where possible and ensure all Windows systems are fully patched. Implement network segmentation to restrict SMB traffic.

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-2017-0143 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-2017-0143 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.