CVE-2017-0199

CVE-2017-0199 is a high-severity (CVSS 7.8) vulnerability in Microsoft Office and WordPad. CISA added it to the Known Exploited Vulnerabilities catalog on November 3, 2021, which means exploitation in the wild has been confirmed; US federal agencies had to remediate it by May 3, 2022. CISA also lists it as known to be used in ransomware campaigns, so it should be prioritised accordingly. Microsoft has 390 vulnerabilities in the KEV catalog, 117 of them linked to ransomware.

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."

CVSS vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

• http://rewtin.blogspot.nl/2017/04/cve-2017-0199-practical-exploitation-poc.html
• http://www.securityfocus.com/bid/97498
• http://www.securitytracker.com/id/1038224
• https://blog.nviso.be/2017/04/12/analysis-of-a-cve-2017-0199-malicious-rtf-document/
• https://ics-cert.us-cert.gov/advisories/ICSMA-18-058-02
• https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2017-0199
• https://www.exploit-db.com/exploits/41894/
• https://www.exploit-db.com/exploits/41934/