Summary
Impact: Remote Code Execution. Microsoft rating: Important. Not known to be exploited — Exploitation Unlikely. 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.
According to the CVSS metric, privileges required is low (PR:L). What does that mean for this vulnerability?
Any authenticated attacker could trigger this vulnerability. It does not require admin or other elevated privileges.
Are the updates for the Microsoft 365 for Office currently available?
The security update for Microsoft 365 are not immediately available. The updates will be released as soon as possible, and when they are available, customers will be notified via a revision to this CVE information.
Is the Preview Pane an attack vector for this vulnerability?
No, the Preview Pane is not an attack vector.
Security updates
https — https://docs.microsoft.com/en-us/officeupdates/office365-proplus-security-updates
Vulnerabilities 1
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High 7.8CVE-2025-47176 Public exploit
Microsoft Outlook Remote Code Execution Vulnerability
'.../...//' in Microsoft Office Outlook allows an authorized attacker to execute code locally.
Revision history
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#1
Information published.
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#2
Microsoft is announcing the availability of the security updates for Microsoft Office 365. Customers running Office 365 should log in ensure you have the latest update to be protected from this vulnerability. See the [Release Notes](https://learn.microsoft.com/en-us/officeupdates/microsoft365-apps-security-updates) for more information.
References
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CVE-2025-47176 Microsoft Outlook Remote Code Execution Vulnerability - HTML
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-47176
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Microsoft Exploitability Index
https://www.microsoft.com/en-us/msrc/exploitability-index?rtc=1
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Microsoft Support Lifecycle
https://support.microsoft.com/lifecycle
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Common Vulnerability Scoring System
https://www.first.org/cvss