What is CVE-2016-7267?

CVE-2016-7267 is a medium-severity vulnerability in Microsoft Excel, classified under Improper Input Validation. CVSS score: 5.5/10. Published 2016-12-20.

How severe is CVE-2016-7267?

Medium severity. CVSS v3 base score is 5.5 out of 10.

Improper input validation in Microsoft Excel

CVE-2016-7267

Microsoft Excel 2010 SP2, 2013 SP1, 2013 RT SP1, and 2016 misparses file formats, which makes it easier for remote attackers to execute arbitrary code via a crafted document, aka "Microsoft Office Security Feature Bypass Vulnerability."

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

Published 2016-12-20 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N.

EPSS exploit prediction

EPSS: 0.194 (97.3th percentile), scored 2026-10-02.

Moderate probability of exploitation in the next 30 days — watch for active exploitation reports. 97th percentile — 97.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.194 · newest: 0.194 · change: 0.000

Affected products

Microsoft Excel — versions 2010, 2013, 2016

Weakness classification (CWE)

CWE-20 — Improper Input Validation

References

docs.microsoft.com/en-us/security-updates/securitybulletins/2016/ms16-148 (vendor-advisory)
www.securityfocus.com/bid/94664 (VDB Entry, Third Party Advisory, vdb-entry)
www.securitytracker.com/id/1037441 (VDB Entry, Third Party Advisory, vdb-entry)

Frequently asked questions

What is CVE-2016-7267?: CVE-2016-7267 is a medium-severity vulnerability in Microsoft Excel, classified under Improper Input Validation. CVSS score: 5.5/10. Published 2016-12-20.
How severe is CVE-2016-7267?: Medium severity. CVSS v3 base score is 5.5 out of 10.