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Microsoft · Windows

CVE-2017-0146

Microsoft Windows SMB Remote Code Execution Vulnerability

Exploited in attacks Used by ransomware High 8.8 Attack chance: 90%
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What it is

The SMBv1 server in Microsoft Windows Vista SP2; Windows Server 2008 SP2 and R2 SP1; Windows 7 SP1; Windows 8.1; Windows Server 2012 Gold and R2; Windows RT 8.1; and Windows 10 Gold, 1511, and 1607; and Windows Server 2016 allows remote attackers to execute arbitrary code via crafted packets, aka "Windows SMB Remote Code Execution Vulnerability." This vulnerability is different from those described in CVE-2017-0143, CVE-2017-0144, CVE-2017-0145, and CVE-2017-0148.

CISA: The SMBv1 server in Microsoft Windows allows remote attackers to perform remote code execution.

What to do

Apply updates per vendor instructions.

Deadline for US federal agencies: April 15, 2022

Added to the CISA list
March 25, 2022
Published
March 17, 2017
Severity
High 8.8 CVSS 3.1
Chance of attacks in the next 30 days (EPSS)
90% in the top 0.2% of all known vulnerabilities
Weakness
CWE-20
More details
NVD · CVE.org · CISA
All references (11)

More exploited flaws from Microsoft

AddedVulnerabilityProductSeverityAttack chance
Oct 13, 2026Command InjectionCVE-2026-96951WindowsHigh 8.89.8%
Sep 8, 2026Link FollowingCVE-2026-81963WindowsHigh 7.80.4%
Sep 8, 2026Heap-Based Buffer OverflowCVE-2026-85880WindowsHigh 7.80.4%
May 20, 2026Buffer OverflowCVE-2008-4250WindowsCritical 9.899%
Apr 28, 2026Protection Mechanism FailureCVE-2026-32202WindowsMedium 4.371%
Apr 13, 2026Out-of-Bounds ReadCVE-2023-36424WindowsHigh 7.812%
Apr 13, 2026Link FollowingCVE-2025-60710used by ransomwareWindowsHigh 7.84.6%
Feb 17, 2026 Microsoft Windows Video ActiveX Control Remote Code ExecutionCVE-2008-0015WindowsHigh 8.877%

All of them →

Sources: Known Exploited Vulnerabilities (CISA, public domain), CVE records (cve.org) and EPSS (FIRST). The chance of attacks is the EPSS estimate that someone will try to exploit the flaw in the next 30 days.