Word
CVE-2021-1715
HIGH
Vulnerability Assessment
| Weakness |
CWE
ASVS 5.0
V15 - Secure Coding and Architecture Bounds checking, write limits
MITRE ATT&CK
2 techniques across 2 tactics: Execution, Privilege Escalation The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up. |
| Impact | CVSS score of 7.8 (HIGH). Attack characteristics: local attack vector, low complexity, no privileges required, user interaction required. |
| Exploit ScenarioDerived | A local attacker with access to the system could write data beyond allocated buffer boundaries leading to code execution or crashes. No authentication is required to exploit this vulnerability. |
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Alert meAnalysisAI
Microsoft Word Remote Code Execution Vulnerability. Rated high severity (CVSS 7.8), this vulnerability is no authentication required, low attack complexity. No vendor patch available.
RemediationAI
No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Validate write boundaries, use memory-safe languages, enable compiler protections (ASLR, stack canaries).
Affects your stack
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Checking this CVE against your own stacks and servers is part of the Basic plan and up.
Technical ContextAI · show details
This vulnerability is classified as Out-of-bounds Write (CWE-787), which allows attackers to write data beyond allocated buffer boundaries leading to code execution or crashes. Affected products include: Microsoft 365 Apps, Microsoft Office, Microsoft Office Online Server, Microsoft Office Web Apps, Microsoft Office Web Apps Server.
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Severity by source
AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Primary rating from Vendor (microsoft) · only source for this CVE.
CVSS VectorVendor: microsoft
DescriptionCVE.org
Microsoft Word Remote Code Execution Vulnerability
Threat Intelligence Overview
NVD
CVE.org
EPSS
How this decision was reached
The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.
What every action level means
SSVC AssessmentENISA
Priority Score
Attack Technique
A buffer overflow occurs when a program writes more data to a memory buffer than it was allocated to hold, causing the excess data to spill into adjacent memory regions.
Memory corruption occurs when a program writes data beyond the boundaries of allocated memory regions or accesses memory in unintended ways, violating the integrity of the process's address space.
Remote Code Execution represents the critical moment when an attacker successfully runs arbitrary code on a target system without physical access.
Affected Products (CPE)CVE.org
Microsoft Word Remote Code Execution Vulnerability. Rated critical severity (CVSS 9.8), this vulnerability is remotely e
Microsoft Excel 2007 SP3, PowerPoint 2007 SP3, Word 2007 SP3, Excel 2010 SP2, PowerPoint 2010 SP2, and Word 2010 SP2 all
Microsoft Word 2007 SP3, Office 2010 SP2, Word 2010 SP2, Word 2013 SP1, Word 2013 RT SP1, Office for Mac 2011, Office fo
Microsoft Word 2007 SP3, Office 2010 SP2, Word 2010 SP2, Word Automation Services in SharePoint Server 2010, Web Applica
Microsoft Word 2007 SP3, Office 2010 SP2, Word 2010 SP2, and Office for Mac 2011 allow remote attackers to execute arbit
Microsoft Word 2007 SP3 allows remote attackers to execute arbitrary code or cause a denial of service (memory corruptio
Integer underflow in Microsoft Office 2007 SP3, Office 2010 SP2, Office 2013 SP1, Office 2013 RT SP1, Office for Mac 201
Microsoft Word Automation Services in SharePoint Server 2010 SP1, Word Web App 2010 SP1 in Office Web Apps 2010, Word 20
Microsoft Word Automation Services in SharePoint Server 2010 SP1 and SP2, Word Web App 2010 SP1 and SP2 in Office Web Ap
Microsoft Word Automation Services in SharePoint Server 2010 SP1, Word Web App 2010 SP1 in Office Web Apps 2010, Word 20
Microsoft Word Automation Services in SharePoint Server 2010 SP1, Word Web App 2010 SP1 in Office Web Apps 2010, Word 20
Microsoft Word Automation Services in SharePoint Server 2010 SP1, Word Web App 2010 SP1 in Office Web Apps 2010, Word 20
GitHub PoC
Exploit-DB