Windows BitLocker Vulnerability Allows Attackers to Execute Malicious Code Remotely

Cybersecuritynews •Guru Baran • September 9, 2026

Microsoft has disclosed a new security flaw in Windows BitLocker, the operating system’s built-in disk encryption feature, that could let an attacker execute malicious code on a vulnerable device. Tracked as CVE-2026-69449 and published on September 8, 2026, the vulnerability stems from a heap-based buffer overflow in BitLocker’s code and has been rated “Important” in […]

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Critical Windows BitLocker Vulnerability Enables Remote Code Execution Microsoft has disclosed CVE-2026-69449, an Important-severity vulnerability in Windows BitLocker, which could allow attackers to execute remote code on vulnerable systems. This heap-based buffer overflow affects the built-in disk encryption feature of Windows. The vulnerability was published on September 8, 2026, and has a CVSS 3.1 base score of 6.7. Organizations using Windows systems with BitLocker enabled are at risk. The current status indicates that the vulnerability is disclosed but not yet confirmed to be actively exploited in the wild. Security professionals are advised to monitor for updates and apply patches as they become available. 2 sources 43

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Windows BitLocker Vulnerability Allows Attackers to Execute Malicious Code Remotely

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