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.

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…

Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)

EPSS: 0.169 (95.1th percentile) — read the EPSS interpretation.

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.

Affected products

Microsoft Excel — versions 2007, 2010, 2013
Microsoft Excel_for_mac — versions 2016
Microsoft Excel_viewer
Microsoft Office_compatibility_pack
N/a — versions n/a

Weakness classification (CWE)

CWE-20 — Improper Input Validation

Public proof-of-concept exploits

References

94662 (Third Party Advisory, VDB Entry, vdb-entry, x_refsource_BID)
MS16-148 (x_refsource_MS, vendor-advisory)
1037441 (Third Party Advisory, VDB Entry, vdb-entry, x_refsource_SECTRACK)

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.