Microsoft Security Response Center

Use of uninitialized resource in Windows Routing and Remote Access Service (RRAS) allows an authorized attacker to disclose information over a network.

External control of file name or path in Windows Security App allows an authorized attacker to perform spoofing 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.

Exposure of private personal information to an unauthorized actor in Azure Stack allows an authorized attacker to disclose information locally.

**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.

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.

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

**What type of information could be disclosed by this vulnerability?** An attacker who successfully exploited this vulnerability could potentially read small portions of heap memory.

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