CVE-2021-27056: Microsoft PowerPoint PPTX File Parsing Use-After-Free Remote Code Execution Vulnerability
Microsoft PowerPoint Remote Code Execution Vulnerability
Other sources
This vulnerability allows remote attackers to execute arbitrary code on affected installations of Microsoft PowerPoint. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file. The specific flaw exists within the processing of PowerPoint presentation files. The issue results from the lack of validating the existence of an object prior to performing operations on the object. An attacker can leverage this vulnerability to execute code in the context of the current process.
— ZDI
Affected Software
Remediation
Event History
Frequently Asked Questions
What is CVE-2021-27056?
CVE-2021-27056 is a vulnerability that allows remote attackers to execute arbitrary code on affected installations of Microsoft PowerPoint.
How do I exploit CVE-2021-27056?
To exploit CVE-2021-27056, the target must visit a malicious page or open a malicious file.
What is the severity of CVE-2021-27056?
The severity of CVE-2021-27056 is high, with a CVSS score of 7.8.
Which versions of Microsoft PowerPoint are affected by CVE-2021-27056?
Microsoft PowerPoint 2010 SP2, 2013 SP1, 2013 RT, and 2016 are affected by CVE-2021-27056.
How can I fix CVE-2021-27056?
Microsoft has released patches and updates to fix CVE-2021-27056. Please refer to the Microsoft Security Advisory for the appropriate remediation steps based on your specific version of Microsoft PowerPoint.