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Time-of-check time-of-use (toctou) race condition in Windows Kernel Memory allows an authorized attacker to elevate privileges locally.

**What type of information could be disclosed through this issue?** The vulnerability may allow limited exposure of data returned from outbound requests SharePoint makes on the attacker’s behalf, such as external HTTP responses or basic network metadata, but not internal network content or sensitive server information.

**Is the Preview Pane an attack vector for this vulnerability?** No, the Preview Pane is not an attack vector.

**According to the CVSS metric, the attack complexity is high (AC:H). What does that mean for this vulnerability?** Successful exploitation of this vulnerability requires an attacker to gather information specific to the environment of the targeted component.

**What privileges could be gained by an attacker who successfully exploited this vulnerability?** An attacker who successfully exploited this vulnerability could gain SYSTEM privileges.

Untrusted pointer dereference in Windows Virtualization-Based Security (VBS) Enclave allows an unauthorized attacker to disclose information locally.

External control of file name or path in Windows Telephony Service allows an authorized attacker to elevate privileges over an adjacent network.

Improper access control in Windows HTTP.sys allows an authorized attacker to elevate privileges over a network.

Heap-based buffer overflow in Windows Motorola Soft Modem Driver allows an authorized attacker to elevate privileges locally.

**According to the CVSS metric, successful exploitation could lead to a scope change (S:C). What does this mean for this vulnerability?** In this case, a successful attack could be performed from a low privilege AppContainer. The attacker could elevate their privileges and execute code or access resources at a higher integrity level than that of the AppContainer execution environment.