PT-2016-5439 · Microsoft · Office Compatibility Pack+3

Published 2016-09-13 · Updated 2026-02-01 · CVE-2016-3381

Positive Technologies (AI Summary)

CVSS v2.0

9.3

High

Base vector

AV:N/AC:M/Au:N/C:C/I:C/A:C

Name of the Vulnerable Software and Affected Versions Microsoft Excel versions 2007 SP3 through 2016 Office Compatibility Pack version SP3 Excel Viewer (affected versions not specified)

Description The issue allows remote attackers to execute arbitrary code via a crafted document. Multiple remote code execution vulnerabilities exist in Microsoft Office software when it fails to properly handle objects in memory. An attacker who successfully exploits the vulnerabilities could run arbitrary code in the context of the current user. If the current user is logged on with administrative user rights, an attacker could take control of the affected system, then install programs, view, change, or delete data, or create new accounts with full user rights. Exploitation requires that a user open a specially crafted file with an affected version of Microsoft Office software.

Recommendations For Microsoft Excel versions 2007 SP3 through 2016, update to a version that is not affected by this issue. For Office Compatibility Pack version SP3, update to a version that is not affected by this issue. For Excel Viewer, at the moment, there is no information about a newer version that contains a fix for this vulnerability.

RCE

Buffer Overflow

Weakness Enumeration

CWE-119

Related Identifiers

CVE-2016-3381

Affected Products

Excel Viewer

Office Excel

Office

Office Compatibility Pack

References · 6

• https://osv.dev/vulnerability/CVE-2016-3381 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2016-3381 · Security Note
• https://docs.microsoft.com/en-us/security-updates/securitybulletins/2016/ms16-107 · Vendor Advisory
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-3381 · Security Note
• http://technet.microsoft.com/library/security/MS16-107 · Note
• http://securitytracker.com/id/1036785 · Note