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CVE-2017-0143

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…

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-2017-0144, CVE-2017-0145, CVE-2017-0146, and CVE-2017-0148.

Exploited in the wild

CISA lists this vulnerability in its Known Exploited Vulnerabilities catalog as Microsoft Windows Server Message Block (SMBv1) Remote Code Execution Vulnerability.

Added
3 Nov 2021
Fix due (US federal)
3 May 2022
Used by ransomware
Known

Apply updates per vendor instructions.

ENISA's EU Vulnerability Database lists it as exploited, from CISA's KEV, since 3 Nov 2021.

Public exploit

An exploit or proof of concept is public: anyone can try it against an unpatched system. The public collections list 5 Metasploit modules and 4 Exploit-DB entries for it. 3 references of the record are tagged as an exploit. CISA's SSVC rates its exploitation: it is being exploited.

Show the exploits12

Metasploit modules5 modules

Exploit-DB4 entries

References tagged exploit3 references

Modules, templates and exploits as listed by the Metasploit Framework (BSD-3-Clause), ProjectDiscovery's Nuclei templates (MIT) and the Exploit Database (GPLv2), read once a day. Where the data comes from

Timeline

  1. ID reserved

    By microsoft

  2. · 6 months later

    Published

  3. · 5 years later

    Added to CISA KEV

    Known exploited, also by ransomware

  4. · 4 years later

    Record updated

Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.

Scores

CVSS scores of CVE-2017-0143, by who scored it
Scored byCVSSScoreVector
CISA-ADPADP (enrichment)3.1High8.8CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
NVDNVD · Analyzed3.1High8.8CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS (exploitation in 30 days)
93.3% · top 0.2% of all CVEs (9 Nov 2026)
CISA SSVC
Exploitation: active · Automatable: no · Technical impact: total
Loading the EPSS history…

The list uses the assigner's score when there is one, then CISA's, then NVD's: High 8.8.

Affected products

  • Microsoft Corporation · Windows SMB

    • affected 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

References

12

Sources

The same CVE in the primary databases and aggregators, to check against.

Badge for a README or a ticket

CVE-2017-0143 badge
[![CVE-2017-0143](https://cveledger.app/badge/CVE-2017-0143.svg)](https://cveledger.app/cve/CVE-2017-0143)

Record last updated .