Summary
Impact: Remote Code Execution. Microsoft rating: Critical. Not known to be exploited — Exploitation More Likely. Customer action: Required.
Details
According to the CVSS metric, the attack vector is local (AV:L). Why does the CVE title indicate that this is a remote code execution?
The word Remote in the title refers to the location of the attacker. This type of exploit is sometimes referred to as Arbitrary Code Execution (ACE). The attack itself is carried out locally. This means an attacker or victim needs to execute code from the local machine to exploit the vulnerability.
How could an attacker exploit the vulnerability?
An attacker who successfully exploits this vulnerability could achieve remote code execution without user interaction.
Are the updates for Microsoft Office LTSC for Mac 2021 and 2024 currently available?
Yes. As of July 15, 2025, the security update for Microsoft Office LTSC for Mac 2021 and 2024 are available. Customers running Microsoft Office LTSC for Mac 2021 and 2024 should ensure the update is installed to be protected from this vulnerability.
Is the Preview Pane an attack vector for this vulnerability?
Yes, the Preview Pane is an attack vector.
Security updates
https — https://docs.microsoft.com/en-us/officeupdates/microsoft365-apps-security-updates
16.99.25071321 — https://go.microsoft.com/fwlink/p/?linkid=831049
16.0.19029.20000 — https://support.google.com/googleplay/answer/113412?hl=en
16.0.5508.1001 — https://support.microsoft.com/help/5002742
Vulnerabilities 1
-
High 8.4
Microsoft Office Remote Code Execution Vulnerability
Out-of-bounds read in Microsoft Office allows an unauthorized attacker to execute code locally.
Revision history
-
#2
**Are the updates for Microsoft Office LTSC for Mac 2021 and 2024 currently available?** Yes. As of July 15, 2025, the security update for Microsoft Office LTSC for Mac 2021 and 2024 are available. Customers running Microsoft Office LTSC for Mac 2021 and 2024 should ensure the update is installed to be protected from this vulnerability.
-
#1
Information published.
References
-
CVE-2025-49696 Microsoft Office Remote Code Execution Vulnerability - HTML
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-49696
-
Microsoft Exploitability Index
https://www.microsoft.com/en-us/msrc/exploitability-index?rtc=1
-
Microsoft Support Lifecycle
https://support.microsoft.com/lifecycle
-
Common Vulnerability Scoring System
https://www.first.org/cvss