Improper input validation in Microsoft Excel
CVE-2016-7266
Microsoft Excel 2007 SP3, Excel 2010 SP2, Excel 2013 SP1, Excel 2013 RT SP1, Excel 2016, Office Compatibility Pack SP3, Excel Viewer, and Excel 2016 for Mac mishandle a registry check, which allows user-assisted remote attackers to execute arbitrary commands via crafted embedded content in a document, aka "Microsoft Office Security Feature Bypass Vulnerability."
Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.8 (High). Vector: CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.222 (97.7th percentile), scored .
Moderate probability of exploitation in the next 30 days — watch for active exploitation reports. 98th percentile — 97.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.222 · newest: 0.222 · change: 0.000
Affected products
- Microsoft Excel — versions 2007, 2010, 2013
- Microsoft Excel For Mac — versions 2016
- Microsoft Excel Viewer
- Microsoft Office Compatibility Pack
Weakness classification (CWE)
Public proof-of-concept exploits
References
- www.securityfocus.com/bid/94662 (VDB Entry, Third Party Advisory, vdb-entry)
- docs.microsoft.com/en-us/security-updates/securitybulletins/2016/ms16-148 (vendor-advisory)
- www.securitytracker.com/id/1037441 (VDB Entry, Third Party Advisory, vdb-entry)
Frequently asked questions
- What is CVE-2016-7266?
- CVE-2016-7266 is a high-severity vulnerability in Microsoft Excel, classified under Improper Input Validation. CVSS score: 7.8/10. Published 2016-12-20.
- How severe is CVE-2016-7266?
- High severity. CVSS v3 base score is 7.8 out of 10.
- Is CVE-2016-7266 known to be exploited?
- 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.