Microsoft Excel Information Disclosure Vulnerability

CVE-2018-8627
Security Vulnerability

Released: Dec 11, 2018

Assigning CNA
Microsoft
CVE.org link
CVE-2018-8627

Executive Summary

An information disclosure vulnerability exists when Microsoft Excel software reads out of bound memory due to an uninitialized variable, which could disclose the contents of memory. An attacker who successfully exploited the vulnerability could view out of bound memory.

Exploitation of the vulnerability requires that a user open a specially crafted file with an affected version of Microsoft Excel software.

The security update addresses the vulnerability by properly initializing the affected variable.

Exploitability

The following table provides an exploitability assessment for this vulnerability at the time of original publication.

Publicly disclosed
No
Exploited
No
Exploitability assessment
Exploitation Less Likely

FAQ

What type of information could be disclosed by this vulnerability?

The type of information that could be disclosed if an attacker successfully exploited this vulnerability is uninitialized memory.

Acknowledgements

  • Yangkang(@dnpushme) & Jinquan(@jq0904) of Qihoo360 CoreSecurity(@360CoreSec)
Microsoft recognizes the efforts of those in the security community who help us protect customers through coordinated vulnerability disclosure. See Acknowledgements for more information.

Security Updates

To determine the support lifecycle for your software, see the Microsoft Support Lifecycle.

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Disclaimer

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Revisions

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