Microsoft Outlook RCE Vulnerability CVE-2026-70329 Disclosed

Microsoft has disclosed a remote code execution (RCE) vulnerability in Outlook, tracked as CVE-2026-70329. This flaw, identified as stemming from an integer overflow issue, allows attackers to execute malicious code on affected systems. Rated as Important, it has a CVSS 3.1 score of 8.8, indicating a high severity level. The vulnerability was published on August 11, 2026, as part of Microsoft's Patch Tuesday rollout. Users of Microsoft Office Outlook are urged to apply the necessary patches to mitigate potential exploitation. The scope of impact includes all versions of Outlook that are vulnerable to this flaw. No active exploitation has been reported at this time, but the potential for serious consequences remains.

Key Points: • CVE-2026-70329 allows remote code execution in Microsoft Outlook. • The vulnerability has a CVSS score of 8.8, indicating high severity. • Microsoft recommends immediate patching to prevent exploitation.