#rce

**According to the CVSS metric, the attack complexity is high (AC:H). What does that mean for this vulnerability?** A race condition is triggered when the admin begins administering from the host system and not a guest or nested guest.

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

Heap-based buffer overflow in Microsoft Teams allows an unauthorized attacker to execute code over a network.

Access of resource using incompatible type ('type confusion') in Microsoft Office Excel allows an unauthorized attacker to execute code locally.

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

**According to the CVSS metric, the privilege required is none (PR:N) and user interaction is none (UI:N). What does that mean for this vulnerability?** An attacker doesn't require any privileges on the systems hosting the web services. Successful exploitation of this vulnerability could cause Remote Code Execution or Information Disclosure on web services that are parsing documents that contain a specially crafted metafile, without the involvement of a victim user.

**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.

**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.

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

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