CVE-2017-0144: Microsoft Windows SMB Remote Code Execution (EternalBlue)

CRITICAL CVSS 8.1 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H CWE-94 CISA KEV · Known exploited

Published 2017-03-14T04:59:00.000 Updated 2024-07-29T16:45:00.000

Summary

The SMBv1 server in Microsoft Windows Vista SP2 through Windows Server 2016 allows remote attackers to execute arbitrary code via crafted packets, aka Windows SMB Remote Code Execution Vulnerability. This flaw was widely exploited by the WannaCry ransomware worm.

Why It Matters

CRITICAL severity — known to be exploited in the wild(CISA KEV);action required: Apply updates per vendor instructions.;affects Windows.

Risks left unpatched can lead to remote code execution, data exposure or lateral movement — verify exposure against the affected software below.

Current Status

  • Vulnerability status: Known exploited (CISA KEV)
  • Last intelligence update: 2024-07-29 · source: NVD
  • CISA KEV added: 2022-02-10 · remediation deadline: 2022-08-10

Entity Activity Timeline

  1. 2022-02-10 — Added to CISA KEV as known-exploited · action: Apply updates per vendor instructions.
  2. 2017-03-14 — NVD publication / disclosure
  3. 2024-07-29 — Intelligence record updated(NVD sync)

Severity

CRITICAL

CVSS Score: 8.1

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Known Exploited (CISA KEV)

Known Exploited Vulnerability

Added: 2022-02-10 · Remediation deadline: 2022-08-10

Apply updates per vendor instructions.

Source Attribution

Source: NVD · Updated: 2024-07-29T16:45:00.000 · Confidence: high

Impact

Based on CVSS vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H — assess confidentiality, integrity, and availability impact via the official vector documentation.

Affected Software

  • Windows (Microsoft)
    Affected: Vista SP2 - Server 2016
    Fix: MS17-010

Fix

Upgrade affected software to the fixed version identified above. Apply vendor patches and monitor advisories before exposed systems go unpatched.

Sources & Evidence

2 reference(s) · attribution: NVD

Start Investigation

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  5. Sources — NVD, CISA KEV, MITRE ATT&CK, vendor advisories.
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