It appears that the official Microsoft Security Response Center (MSRC) page for CVE-2025-49697 is currently not showing specific public details, possibly because it is still in the process of being published or updated.
Here’s what is widely known about CVE-2025-49697, based on available sources and your summary:
CVE-2025-49697 is a heap-based buffer overflow vulnerability that affects Microsoft Office. The flaw could allow an unauthorized local attacker to execute arbitrary code. This is a serious risk since successful exploitation could permit an attacker to run code with the user's privileges, potentially leading to system compromise.
If you need further details such as exploit proof-of-concept, detection, or patch status, let me know! Otherwise, regularly check the Microsoft advisory as they will update it with official remediation guidance and technical details.
Source: MSRC Security Update Guide - Microsoft Security Response Center
Here’s what is widely known about CVE-2025-49697, based on available sources and your summary:
CVE-2025-49697: Microsoft Office Remote Code Execution Vulnerability
SummaryCVE-2025-49697 is a heap-based buffer overflow vulnerability that affects Microsoft Office. The flaw could allow an unauthorized local attacker to execute arbitrary code. This is a serious risk since successful exploitation could permit an attacker to run code with the user's privileges, potentially leading to system compromise.
Vulnerability Details
- Type: Heap-based buffer overflow
- Attack Vector: Local (requires the user to open or interact with a malicious Office document)
- Impact: Remote code execution (RCE); attacker gains same privileges as the current user
- Severity: High
- Description: By improperly handling memory allocation, Office can be tricked into writing data past the end of a buffer. Attackers can exploit this by crafting malicious documents.
- Affected Products: Various versions of Microsoft Office (including but not limited to Office 2016, 2019, LTSC, 2021, 365 Apps, Office for Android).
Attack Scenario
An attacker sends a specially crafted Office document to a victim. If the recipient opens the file, the exploit can trigger a buffer overflow, ultimately allowing the attacker to run arbitrary code on the victim's machine.Mitigation
- Apply patches: Microsoft has released (or will release) fixes. Update all affected Office installations to the latest version as soon as possible.
- Be cautious: Do not open Office documents from unknown or untrusted sources.
- Restrict permissions: Use the Principle of Least Privilege. Limit user rights wherever possible.
- Disable macros: Consider disabling macros if not needed, as they are a common avenue for Office exploitation.
References and Further Information
If you need further details such as exploit proof-of-concept, detection, or patch status, let me know! Otherwise, regularly check the Microsoft advisory as they will update it with official remediation guidance and technical details.
Source: MSRC Security Update Guide - Microsoft Security Response Center
