#vulnerability

**What kind of security feature could be bypassed by successfully exploiting this vulnerability?** An attacker who successfully exploited this vulnerability could bypass Secure Boot.

Heap-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to execute code locally.

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

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

Improper access control in Windows SMB allows an authorized attacker to elevate privileges 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.

Access of resource using incompatible type ('type confusion') 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.

**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.

**Are the updates for the Microsoft 365 for Office currently available?** The security update for Microsoft 365 are not immediately available. The updates will be released as soon as possible, and when they are available, customers will be notified via a revision to this CVE information.