CVE-2017-11877

Microsoft Office Excel Security Feature Bypass

CVE-2017-11877 is fixed in 10 products on 1 platform, first by KB4011199, released November 14, 2017. It is not reported as exploited. Patch Radar priority: High.

High
CVSS
n/a
Important
Exploitation
None reported
Exploitation Less Likely
CISA KEV
Not listed
Not in the Known Exploited Vulnerabilities catalog
EPSS
0.0455
91st percentile

<p>A security feature bypass vulnerability exists in Microsoft Office software by not enforcing macro settings on an Excel document. The security feature bypass by itself does not allow arbitrary code execution. To successfully exploit the vulnerability, an attacker would have to embed a control in an Excel worksheet that specifies a macro should be run.   To exploit the vulnerability, an attacker would have to convince a user to open a specially crafted file with an affected version of Microsoft Office software.   The security update addresses the vulnerability by enforcing macro settings on Excel documents.</p>

Where it's fixed

ProductFixed inFixReleased
Microsoft
Microsoft Excel 2007 Service Pack 3 KB4011199 Nov 14, 2017
Microsoft Excel 2010 Service Pack 2 (32-bit editions) KB4011197 Nov 14, 2017
Microsoft Excel 2010 Service Pack 2 (64-bit editions) KB4011197 Nov 14, 2017
Microsoft Excel 2013 RT Service Pack 1 KB4011233 Nov 14, 2017
Microsoft Excel 2013 Service Pack 1 (32-bit editions) KB4011233 Nov 14, 2017
Microsoft Excel 2013 Service Pack 1 (64-bit editions) KB4011233 Nov 14, 2017
Microsoft Excel 2016 (32-bit edition) KB4011220 Nov 14, 2017
Microsoft Excel 2016 (64-bit edition) KB4011220 Nov 14, 2017
Microsoft Excel Viewer 2007 Service Pack 3 KB4011206 Nov 14, 2017
Microsoft Office Compatibility Pack Service Pack 3 KB4011205 Nov 14, 2017