CVE-2017-0199 — Microsoft Office and WordPad Remote Code Execution Vulnerability

Microsoft Office 2007 SP3, Microsoft Office 2010 SP2, Microsoft Office 2013 SP1, Microsoft Office 2016, Microsoft Windows Vista SP2, Windows Server 2008 SP2, Windows 7 SP1, Windows 8.1 allow remote attackers to execute arbitrary code via a crafted document, aka "Microsoft Of

01What is this vulnerability?

Microsoft Office 2007 SP3, Microsoft Office 2010 SP2, Microsoft Office 2013 SP1, Microsoft Office 2016, Microsoft Windows Vista SP2, Windows Server 2008 SP2, Windows 7 SP1, Windows 8.1 allow remote attackers to execute arbitrary code via a crafted document, aka "Microsoft Office/WordPad Remote Code Execution Vulnerability w/Windows API."

02Affected products

Vendor	Product	Versions
Microsoft Corporation	Office/WordPad	Office 2007 SP3, Microsoft Office 2010 SP2, Microsoft Office 2013 SP1, Microsoft Office 2016, Microsoft Windows Vista SP2, Windows Server 2008 SP2, Windows 7 SP1, and Windows 8.1

03Active exploitation status

Yes — actively exploited. Added to the CISA KEV catalog on 2021-11-03. Ransomware use: Known.

04Recommended remediation

• Patch to a fixed version listed in the vendor advisory (see references below).
• Mitigate with WAF rules, network egress filters, or feature flags where the patch is not yet available.
• Hunt historical logs for exploitation indicators — see Detection signatures below.

05Technical details

For the full vendor write-up, exploit chains, and reference implementations, see the references list in section 09.

06Detection signatures

Open the Sigma generator with a pre-filled prompt for this CVE to draft a starting detection in your stack of choice:

Open in Sigma generator →

07Related CVEs

No directly-cited follow-up CVEs in the KB record for this advisory. The references list in section 09 carries the vendor cross-references.

08Timeline

• Published: 2017-04-12T14:00:00.000Z
• Last modified: 2025-10-21T23:55:42.609Z
• Added to CISA KEV: 2021-11-03
• BOD 22-01 due: 2022-05-03

09References

• www.securityfocus.com — http://www.securityfocus.com/bid/97498
• blog.nviso.be — https://blog.nviso.be/2017/04/12/analysis-of-a-cve-2017-0199-malicious-rtf-docum…
• rewtin.blogspot.nl — http://rewtin.blogspot.nl/2017/04/cve-2017-0199-practical-exploitation-poc.html
• www.exploit-db.com — https://www.exploit-db.com/exploits/41894/
• www.fireeye.com — https://www.fireeye.com/blog/threat-research/2017/04/cve-2017-0199_useda.html
• portal.msrc.microsoft.com — https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2017-0199
• ics-cert.us-cert.gov — https://ics-cert.us-cert.gov/advisories/ICSMA-18-058-02
• www.mdsec.co.uk — https://www.mdsec.co.uk/2017/04/exploiting-cve-2017-0199-hta-handler-vulnerabili…
• www.exploit-db.com — https://www.exploit-db.com/exploits/41934/
• www.exploit-db.com — https://www.exploit-db.com/exploits/42995/
• www.securitytracker.com — http://www.securitytracker.com/id/1038224