CVE-2017-0199

Microsoft Office and WordPad Remote Code Execution

7.8 HIGHActively exploited (CISA KEV)Used in ransomwarePublic exploitEPSS 99.5%

Published12 Apr 2017
Added to CISA KEV3 Nov 2021
Remediation due3 May 2022

Description

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 3.1 breakdown

Attack vectorLocal

Attack complexityLow

Privileges requiredNone

User interactionRequired

ScopeUnchanged

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

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

Affected products

Microsoft Office2007 · 2010 · 2013 · 2016

Philips Intellispace Portal7.0 · 8.0

Microsoft Windows 7all versions

Microsoft Windows Server 2008r2

Microsoft Windows Server 2012all versions

Microsoft Windows Vistaall versions

Remediation

No fixed version is recorded in the NVD data. Check the vendor advisory for the latest guidance.

Patch & vendor advisories

https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2017-0199

References

http://rewtin.blogspot.nl/2017/04/cve-2017-0199-practical-exploitation-poc.htmlExploitThird Party Advisory
https://blog.nviso.be/2017/04/12/analysis-of-a-cve-2017-0199-malicious-rtf-document/ExploitThird Party Advisory
https://ics-cert.us-cert.gov/advisories/ICSMA-18-058-02Third Party AdvisoryUS Government Resource
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2017-0199PatchVendor Advisory
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2017-0199US Government Resource
https://www.exploit-db.com/exploits/41894/ExploitThird Party AdvisoryVDB Entry
https://www.exploit-db.com/exploits/41934/ExploitThird Party AdvisoryVDB Entry
https://www.exploit-db.com/exploits/42995/Third Party AdvisoryVDB Entry
https://www.fireeye.com/blog/threat-research/2017/04/cve-2017-0199_useda.htmlBroken LinkExploitThird Party Advisory
https://www.mdsec.co.uk/2017/04/exploiting-cve-2017-0199-hta-handler-vulnerability/ExploitThird Party Advisory

and 2 more references

Frequently asked

Is CVE-2017-0199 being actively exploited?

Yes. CVE-2017-0199 is listed in the CISA Known Exploited Vulnerabilities (KEV) catalog, added 3 Nov 2021. It has been used in ransomware campaigns.

How severe is CVE-2017-0199?

CVE-2017-0199 has a CVSS 3.1 base score of 7.8, rated high. EPSS estimates a 99.5% probability of exploitation.

Which products are affected by CVE-2017-0199?

Affected products include Microsoft Office, Philips Intellispace Portal, Microsoft Windows 7, Microsoft Windows Server 2008, Microsoft Windows Server 2012, and 1 more.

How do I fix CVE-2017-0199?

Apply the vendor's patch or advisory guidance, then verify no affected versions remain across your devices.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2017-0199 against the real software inventory on every managed device, every day. Rather than a static severity, each match is scored in context: exploit availability, EPSS, the asset's exposure, and business criticality decide where it lands in the queue. Because it is on the CISA KEV list, Secuno flags any affected asset as top-priority automatically. If an affected version is present anywhere across your portfolio, it surfaces automatically with a prioritised remediation path.

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Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.