CVE-2026-47635: Microsoft Outlook and Word Remote Code Execution Vulnerability

Overview

Severity
High (CVSS 8.4)
CVSS Vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C
Category
Remote Code Execution
Exploit Status
Not Exploited
Exploitation Likelihood
Less Likely
Patch Tuesday
2026-Jun
Released
2026-06-09

Description

Access of resource using incompatible type ('type confusion') in Microsoft Office allows an unauthorized attacker to execute code locally.

FAQ

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. Is the Preview Pane an attack vector for this vulnerability? Yes, the Preview Pane is an attack vector. Why is Microsoft Word listed in the Security Updates table but the title indicates that Outlook is affected? This vulnerability can be exploited when rendering email in Outlook (classic). The rendering of email in Outlook (classic) uses Microsoft Word functionality. The vulnerability is in the Word functionality and is exploitable through Outlook (classic).

Affected Products (2)

Microsoft Office

  • Microsoft Office LTSC 2024 for 32-bit editions
  • Microsoft Office LTSC 2024 for 64-bit editions

Acknowledgments

0ccbbf129444eb66344ccafb92b00df4

Revision History

  • 2026-06-09: Information published.