Microsoft Security Response Center

Improper input validation in Microsoft Office allows an unauthorized attacker to execute code locally.

Improper verification of cryptographic signature in App Control for Business (WDAC) allows an unauthorized attacker to bypass a security feature locally.

Uncontrolled resource consumption in Windows Standards-Based Storage Management Service allows an unauthorized attacker to deny service over a network.

External control of file name or path in WebDAV allows an unauthorized attacker to execute code over a network.

**What type of information could be disclosed by this vulnerability?** The type of information that could be disclosed if an attacker successfully exploited this vulnerability is uninitialized stack memory.

Use after free in Microsoft Office allows an unauthorized attacker to execute code locally.

Deserialization of untrusted data in Microsoft Office SharePoint allows an authorized attacker to execute code over a network.

Improper access control in Microsoft Local Security Authority Server (lsasrv) allows an unauthorized attacker to deny service over a network.

**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 take additional actions prior to exploitation to prepare the target environment.