Known exploited vulnerability
CVE-2017-0199
The short answer
CVE-2017-0199 affects Microsoft Corporation Office/WordPad and is rated high (CVSS 7.8). CISA added it to the Known Exploited Vulnerabilities catalog on 2021-11-03: attackers are using it, so patch it first. The vendor has linked a patch.
What it is
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."
Severity
7.8 high
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Exploited (CISA KEV)
Yes, since Nov 3, 2021
Federal due date May 3, 2022
EPSS, next 30 days
99%
Higher than 100% of scored CVEs
How it can be exploited
- Attack vector
- Local
- Attack complexity
- Low
- Privileges required
- None
- User interaction
- Required
- Scope
- Unchanged
- Confidentiality impact
- High
- Integrity impact
- High
- Availability impact
- High
What CISA says to do
Apply updates per vendor instructions.
Affected products
Office/WordPad. NVD's record lists the exact affected versions.
References
- blog.nviso.be/2017/04/12/analysis-of-a-cve-2017-0199-malicious-rtf-document/ ExploitThird Party Advisory
- ics-cert.us-cert.gov/advisories/ICSMA-18-058-02 Third Party AdvisoryUS Government Resource
- portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2017-0199 PatchVendor Advisory
- www.exploit-db.com/exploits/41894/ ExploitThird Party AdvisoryVDB Entry
- www.exploit-db.com/exploits/41934/ ExploitThird Party AdvisoryVDB Entry
- www.exploit-db.com/exploits/42995/ Third Party AdvisoryVDB Entry
- www.fireeye.com/blog/threat-research/2017/04/cve-2017-0199_useda.html Broken LinkExploitThird Party Advisory
- www.mdsec.co.uk/2017/04/exploiting-cve-2017-0199-hta-handler-vulnerability/ ExploitThird Party Advisory
- blog.nviso.be/2017/04/12/analysis-of-a-cve-2017-0199-malicious-rtf-document/ ExploitThird Party Advisory
- ics-cert.us-cert.gov/advisories/ICSMA-18-058-02 Third Party AdvisoryUS Government Resource
- portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2017-0199 PatchVendor Advisory
- www.exploit-db.com/exploits/41894/ ExploitThird Party AdvisoryVDB Entry
Questions
Is CVE-2017-0199 being exploited?
Yes. CISA added CVE-2017-0199 to its Known Exploited Vulnerabilities catalog on 2021-11-03, with a federal remediation due date of 2022-05-03. CISA lists it as used in ransomware campaigns.
How do I fix CVE-2017-0199?
CISA's required action: Apply updates per vendor instructions.
From NVD, CISA KEV, FIRST EPSS and OSV.dev, checked . Status on NVD: Analyzed. The description is NVD's text, quoted as published.
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