Issuing CNA: Microsoft

Processor optimization removal or modification of security-critical code in Windows Kernel allows an authorized attacker to disclose information locally.

What type of information could be disclosed by this vulnerability?

Exploiting this vulnerability could allow the disclosure of certain kernel memory content.

Information published.

Issuing CNA: Microsoft

Insufficient UI warning of dangerous operations in Remote Desktop Client allows an unauthorized attacker to perform spoofing over a network.

According to the CVSS metric, user interaction is required (UI:R). What does that mean for this vulnerability?

An attacker must trick the user into interacting with a spoofed WebAuthn prompt and entering their credentials.

According to the CVSS metric, user interaction is required (UI:R) and privileges required are none (PR:N). What does that mean for this vulnerability?

An unauthorized attacker must wait for a user to initiate a connection.

Information published.

Issuing CNA: Microsoft

Protection mechanism failure in Windows Virtualization-Based Security (VBS) Enclave allows an authorized attacker to elevate privileges locally.

What privileges could be gained by an attacker who successfully exploited this vulnerability?

An attacker who successfully exploited this vulnerability could gain SYSTEM privileges.

Information published.

Issuing CNA: Microsoft

Improper link resolution before file access ('link following') in Service Fabric allows an authorized attacker to elevate privileges locally.

How can I update my Service Fabric Cluster to the latest version?

If you have automatic updates, no action is needed. However, for those who choose to manually update, please refer to Manage Service Fabric cluster upgrades for instructions on how to update your Service Fabric Cluster.

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.

According to the CVSS metrics, successful exploitation of this vulnerability could lead to no loss of confidentiality (C:N) but have major impact on integrity (I:H) and on availability (A:H). What does that mean for this vulnerability?

This vulnerability does not allow disclosure of any confidential information, but could allow an attacker to delete data that could include data that results in the service being unavailable.

According to the CVSS metric, privileges required is low (PR:L). What does that mean for this vulnerability?

Successful exploitation of this vulnerability requires an attacker to have access to the location where the target file will be run. They would then need to plant a specific file that would be used as part of the exploitation.

According to the CVSS metric, user interaction is required (UI:R). What does that mean for this vulnerability?

Successful exploitation of this vulnerability requires an administrator to install the bootstrapping agent on the target device where an attacker has planted specially crafted malicious files.

What privileges could be gained by an attacker who successfully exploited this vulnerability?

An attacker who successfully exploited this vulnerability could gain SYSTEM privileges.

Information published.

Issuing CNA: Microsoft

Buffer over-read in Virtual Hard Disk (VHDX) allows an unauthorized attacker to elevate privileges locally.

According to the CVSS metric, the attack vector is local (AV:L) while user interaction is required (UI:R). What does that mean for this vulnerability?

An attacker can trick a local user on a vulnerable system into mounting a specially crafted VHD that would then trigger the vulnerability.

What privileges could be gained by an attacker who successfully exploited this vulnerability?

An attacker who successfully exploited this vulnerability could gain SYSTEM privileges.

Information published.

Issuing CNA: Microsoft

Concurrent execution using shared resource with improper synchronization ('race condition') in Microsoft Input Method Editor (IME) 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 win a race condition.

According to the CVSS metric, user interaction is required (UI:R) and privileges required  is low (PR:L). What does that mean for this vulnerability?

An authorized attacker must send the user a malicious file and convince the user to open it.

What privileges could be gained by an attacker who successfully exploited the vulnerability?

An attacker who successfully exploited the vulnerability could elevate from a low integrity level up to a medium integrity level.

According to the CVSS metric, a successful exploitation could lead to a scope change (S:C). What does this mean for this vulnerability?

In this case, successful exploitation of this vulnerability could allow an attacker to perform remote code execution resulting in a Sandbox escape in the imebroker COM (Component Object Model) object.

Information published.

Issuing CNA: Microsoft

Use after free in Windows SSDP Service allows an authorized attacker to elevate privileges locally.

What privileges could be gained by an attacker who successfully exploited this vulnerability?

An attacker who successfully exploited this vulnerability could gain SYSTEM privileges.

Information published.

Issuing CNA: Microsoft

Protection mechanism failure in Windows GDI allows an unauthorized attacker to disclose information 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 sensitive information.

Information published.

Issuing CNA: Microsoft

Untrusted pointer dereference in Windows Event Tracing allows an authorized attacker to elevate privileges locally.

What privileges could be gained by an attacker who successfully exploited this vulnerability?

An attacker who successfully exploited this vulnerability could gain SYSTEM privileges.

Information published.

Issuing CNA: Microsoft

Use after free in Universal Print Management Service allows an authorized attacker to elevate privileges locally.

According to the CVSS metric, a successful exploitation could lead to a scope change (S:C). What does this mean for this vulnerability?

This vulnerability could lead to a contained execution environment escape. Please refer to AppContainer Isolation for more information.

What privileges could be gained by an attacker who successfully exploited the vulnerability?

An attacker who successfully exploited this vulnerability could potentially gain the ability to crash the system by exploiting the use-after-free vulnerability, even as a standard user.

How could an attacker exploit this vulnerability?

An authenticated attacker could send a specially crafted file to a shared printer. This could result in arbitrary code execution on the system that is sharing the printer.

Information published.

Issuing CNA: Microsoft

Heap-based buffer overflow in Windows Cred SSProvider Protocol allows an authorized attacker to elevate privileges locally.

What privileges could be gained by an attacker who successfully exploited this vulnerability?

An attacker who successfully exploited this vulnerability could gain SYSTEM privileges.

Information published.

Issuing CNA: Microsoft

Heap-based buffer overflow in Windows Routing and Remote Access Service (RRAS) allows an unauthorized attacker to execute code over a network.

How could an attacker exploit this vulnerability?

An attacker could exploit this vulnerability by tricking a user into sending a request to a malicious server via the Routing and Remote Access Service (RRAS) Snap-in. This could result in the server returning malicious data that might cause arbitrary code execution on the user's system.

According to the CVSS metric, the attack vector is network (AV:N), user interaction is required (UI:R), and privileges required are none (PR:N). What does that mean for this vulnerability?

Exploitation of this vulnerability requires an unauthorized attacker to wait for a user to initiate a connection to a malicious server that the attacker has set up prior to the user connecting.

Information published.