CVE-2017-0143: Microsoft Windows Server Message Block (SMBv1) Remote Code Execution Vulnerability

CVE-2017-0143 · Severity: critical · CVSS 8.8 · Exploited in the wild · Published 2021-11-03

The SMBv1 server in multiple versions of Microsoft Windows allows remote attackers to execute arbitrary code via specially crafted packets. This vulnerability was notably exploited in the wild and is associated with the DOUBLEPULSAR payload.

Technologies: Microsoft Windows. Vendors: Microsoft.

Quick answers

Is CVE-2017-0143 exploited in the wild?
Yes. CVE-2017-0143 is known to be exploited in the wild, first recorded on 3 November 2021. Treat it as urgent.
How severe is CVE-2017-0143?
Critical severity, with a CVSS score of 8.8, published 3 November 2021.
Which products and versions are affected?
Microsoft Windows Vista SP2; Microsoft Windows Server 2008 SP2, R2 SP1; Microsoft Windows 7 SP1; Microsoft Windows 8.1 -; and 4 more.
Is there a fix for CVE-2017-0143?
No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
How is CVE-2017-0143 attacked?
It is attacked over the network, in an operating system.
Am I affected by CVE-2017-0143?
Check whether you run Microsoft Windows. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Affected products

  • Microsoft Windows Vista SP2
  • Microsoft Windows Server 2008 SP2, R2 SP1
  • Microsoft Windows 7 SP1
  • Microsoft Windows 8.1 -
  • Microsoft Windows Server 2012 Gold, R2
  • Microsoft Windows RT 8.1 -
  • Microsoft Windows 10 Gold, 1511, 1607
  • Microsoft Windows Server 2016 -

Timeline

  • 2021-11-03: kev added: Added to CISA's Known Exploited Vulnerabilities Catalog.
  • 2021-11-03: disclosed

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