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CISA KEV · ACTIVELY EXPLOITED
HIGH severity

CVE-2017-0144 — Server Message Block

HIGH

CVE-2017-0144 is a high-severity (CVSS 8.8) remote code execution vulnerability in microsoft server message block. It is in CISA's Known Exploited Vulnerabilities catalog (added 2022-02-10) and has been used in ransomware campaigns — treat it as actively exploited and patch now. A fix is available — see the affected versions and patch details below.

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,…

Published
Updated
Affected
9 products
Patched
See advisory
Exploits
25 known
Exploitation data as of Oct 23, 2026 · OSV.dev, NVD, CISA KEV, FIRST.org (EPSS)

Exploitation Status

Actively exploited in the wild

  • Confirmed by CISA's Known Exploited Vulnerabilities catalog on 2022-02-10 — including use in ransomware campaigns. Federal agencies were required to remediate by 2022-08-10.
  • A successful exploit gives an attacker total control of the affected component, not partial access.

Exploitation and automatability from CISA (KEV catalog and SSVC triage) for CVE-2017-0144.

EPSS Exploitation Probability

via FIRST.org ↗
99.2%probability of exploitation in next 30 days
Very High Risk0.00%
Lower risk than most CVEs100th percentile — riskier than 100% of all scored CVEsHighest risk
92.8%95.2%97.6%100.0%94.3%99.2%Apr 26Aug 26Oct 26

Probability of exploitation in the next 30 days, from FIRST.org EPSS.

How urgent is this, really

CVE-2017-0144 by exploitation likelihood (EPSS) against impact (CVSS). In the shaded patch-first corner (EPSS 50%+, CVSS 7.0+).

Where this sits among everything scored

Of 394,803 CVEs with a current EPSS score, this one falls in the ≥ 90% band (highlighted). Counts from FIRST.org, log-scaled.

Description

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-2017-0145, CVE-2017-0146, and CVE-2017-0148.

Affected Products

9 products · 16 configurations
Application
server message blockmicrosoft
1 version
1.0
OS
acuson p300 firmwaresiemens
4 versions
13.0213.0313.2013.21
OS
acuson p500 firmwaresiemens
2 versions
va10vb10
OS
acuson sc2000 firmwaresiemens
≥ 4.0 && < 4.0e
1 version
5.0a
OS
acuson x700 firmwaresiemens
2 versions
1.01.1
OS
syngo sc2000 firmwaresiemens
≥ 4.0 && < 4.0e
1 version
5.0a
Exploits & PoCs
25

Research use only. For defensive security, authorized penetration testing, and academic research only. Never execute exploit code against systems without explicit written authorization.

EDB-42315remotewindows✓ Verified

Microsoft Windows 7/8.1/2008 R2/2012 R2/2016 R2 - 'EternalBlue' SMB Remote Code Execution (MS17-010)

by sleepya · Jul 11, 2017

EDB-42030remotewindows_x86-64✓ Verified

Microsoft Windows 8/8.1/2012 R2 (x64) - 'EternalBlue' SMB Remote Code Execution (MS17-010)

by sleepya · May 17, 2017

EDB-41987remotewindows_x86-64

Microsoft Windows Server 2008 R2 (x64) - 'SrvOs2FeaToNt' SMB Remote Code Execution (MS17-010)

by Juan Sacco · May 10, 2017

EDB-41891doswindows✓ Verified

Microsoft Windows - SMB Remote Code Execution Scanner (MS17-010) (Metasploit)

by Sean Dillon · Apr 17, 2017

EDB-42031remotewindows✓ Verified

Microsoft Windows 7/2008 R2 - 'EternalBlue' SMB Remote Code Execution (MS17-010)

by sleepya · May 17, 2017

EDB-47456remotewindows✓ Verified

DOUBLEPULSAR - Payload Execution and Neutralization (Metasploit)

by Metasploit · Oct 2, 2019

Detection & mitigation playbook

Vendor / appliance
  1. Detect

    Inventory every microsoft server message block deployment and check each version against the affected-products list above.

  2. Fix

    Apply the microsoft server message block security patch or hotfix for CVE-2017-0144 on the affected version, following the vendor advisory for your exact build.

  3. Workarounds

    If you can't upgrade right away: gate or disable the affected feature, validate untrusted input at the boundary, and avoid passing attacker-controlled data into the vulnerable path. O3's runtime protection blocks exploitation in production as an interim safeguard until the upgrade lands. Alongside that, restrict the management interface to trusted networks and apply the vendor's recommended configuration mitigations.

Frequently Asked Questions

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-2017-0145, CVE-2017-0146, and CVE-2017-0148.
O3 Security · Runtime Protection

Is CVE-2017-0144 being exploited in your environment?

Detect and block the exploit chain at execution, on systems you cannot patch yet.

CVE-2017-0144: Server Message Block RCE (High 8.8, KEV)