Msrc Windows Server 2012 vulnerabilities

CVE-2026-21510 [HIGH] CWE-693 Windows Shell Security Feature Bypass Vulnerability Windows Shell Security Feature Bypass Vulnerability Description: Protection mechanism failure in Windows Shell allows an unauthorized attacker to bypass a security feature over a network. FAQ: According to the CVSS metric, user interaction is required (UI:R). What interaction would the user have to do? To successfully exploit this vulnerability, an attacker must convince a user to open a malicious link or shortcu

CVE-2026-21513 [HIGH] CWE-693 MSHTML Framework Security Feature Bypass Vulnerability MSHTML Framework Security Feature Bypass Vulnerability Description: Protection mechanism failure in MSHTML Framework allows an unauthorized attacker to bypass a security feature over a network. FAQ: According to the CVSS metric, the attack vector is user interaction is required (UI:R). How could an attacker exploit this security feature bypass vulnerability? An attacker could exploit this vulnerability by conv

CVE-2026-21533 [HIGH] CWE-269 Windows Remote Desktop Services Elevation of Privilege Vulnerability Windows Remote Desktop Services Elevation of Privilege Vulnerability Description: Improper privilege management in Windows Remote Desktop allows an authorized attacker to elevate privileges locally. FAQ: What privileges could be gained by an attacker who successfully exploited this vulnerability? An attacker who successfully exploited this vulnerability could gain SYSTEM privileges. Windows Remo

CVE-2026-21525 [MEDIUM] CWE-476 Windows Remote Access Connection Manager Denial of Service Vulnerability Windows Remote Access Connection Manager Denial of Service Vulnerability Description: Null pointer dereference in Windows Remote Access Connection Manager allows an unauthorized attacker to deny service locally. Windows Remote Access Connection Manager: Windows Remote Access Connection Manager Microsoft: Microsoft Customer Action Required: Yes Impact: Denial of Service Exploit Status: P

CVE-2026-20929 [HIGH] CWE-284 Windows HTTP.sys Elevation of Privilege Vulnerability Windows HTTP.sys Elevation of Privilege Vulnerability Description: Improper access control in Windows HTTP.sys allows an authorized attacker to elevate privileges over a network. FAQ: According to the CVSS metric, the attack complexity is high (AC:H). What does that mean for this vulnerability? The Attack requires an Service Principal Name (SPN) that is registered to an account that no longer exists or is not i

CVE-2026-20931 [HIGH] CWE-73 Windows Telephony Service Elevation of Privilege Vulnerability Windows Telephony Service Elevation of Privilege Vulnerability Description: External control of file name or path in Windows Telephony Service allows an authorized attacker to elevate privileges over an adjacent network. FAQ: What privileges could be gained by an attacker who successfully exploited this vulnerability? An attacker who successfully exploited this vulnerability could gain SYSTEM privileges

CVE-2026-20921 [HIGH] CWE-362 Windows SMB Server Elevation of Privilege Vulnerability Windows SMB Server Elevation of Privilege Vulnerability Description: Concurrent execution using shared resource with improper synchronization ('race condition') in Windows SMB Server allows an authorized attacker to elevate privileges over a network. FAQ: According to the CVSS metric, the attack complexity is high (AC:H). What does that mean for this vulnerability? Successful exploitation of this vulnerabilit

CVE-2026-20869 [HIGH] CWE-362 Windows Local Session Manager (LSM) Elevation of Privilege Vulnerability Windows Local Session Manager (LSM) Elevation of Privilege Vulnerability Description: Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Local Session Manager (LSM) allows an authorized attacker to elevate privileges locally. FAQ: According to the CVSS metric, the attack complexity is high (AC:H). What does that mean for this vulnerability?

CVE-2026-20922 [HIGH] CWE-122 Windows NTFS Remote Code Execution Vulnerability Windows NTFS Remote Code Execution Vulnerability Description: Heap-based buffer overflow in Windows NTFS allows an authorized attacker to execute code locally. FAQ: 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 A

CVE-2026-20848 [HIGH] CWE-362 Windows SMB Server Elevation of Privilege Vulnerability Windows SMB Server Elevation of Privilege Vulnerability Description: Concurrent execution using shared resource with improper synchronization ('race condition') in Windows SMB Server allows an authorized attacker to elevate privileges over a network. FAQ: What privileges could be gained by an attacker who successfully exploited this vulnerability? An attacker who successfully exploited this vulnerability coul

CVE-2026-20919 [HIGH] CWE-362 Windows SMB Server Elevation of Privilege Vulnerability Windows SMB Server Elevation of Privilege Vulnerability Description: Concurrent execution using shared resource with improper synchronization ('race condition') in Windows SMB Server allows an authorized attacker to elevate privileges over a network. FAQ: According to the CVSS metric, the attack complexity is high (AC:H). What does that mean for this vulnerability? Successful exploitation of this vulnerabilit

CVE-2026-20940 [HIGH] CWE-822 Windows Cloud Files Mini Filter Driver Elevation of Privilege Vulnerability Windows Cloud Files Mini Filter Driver Elevation of Privilege Vulnerability Description: Heap-based buffer overflow in Windows Cloud Files Mini Filter Driver allows an authorized attacker to elevate privileges locally. FAQ: What privileges could be gained by an attacker who successfully exploited this vulnerability? An attacker who successfully exploited this vulnerability could gain SYSTE

CVE-2026-20840 [HIGH] CWE-122 Windows NTFS Remote Code Execution Vulnerability Windows NTFS Remote Code Execution Vulnerability Description: Heap-based buffer overflow in Windows NTFS allows an authorized attacker to execute code locally. FAQ: 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 A

CVE-2026-20843 [HIGH] CWE-284 Windows Routing and Remote Access Service (RRAS) Elevation of Privilege Vulnerability Windows Routing and Remote Access Service (RRAS) Elevation of Privilege Vulnerability Description: Improper access control in Windows Routing and Remote Access Service (RRAS) allows an authorized attacker to elevate privileges locally. FAQ: What privileges could be gained by an attacker who successfully exploited this vulnerability? An attacker who successfully exploited this vul

CVE-2026-20856 [HIGH] CWE-20 Windows Server Update Service (WSUS) Remote Code Execution Vulnerability Windows Server Update Service (WSUS) Remote Code Execution Vulnerability Description: Improper input validation in Windows Server Update Service allows an unauthorized attacker to execute code over a network. FAQ: According to the CVSS metric, the attack complexity is high (AC:H). What does that mean for this vulnerability? The attacker must inject themselves into the logical network path betw

CVE-2026-20820 [HIGH] CWE-122 Windows Common Log File System Driver Elevation of Privilege Vulnerability Windows Common Log File System Driver Elevation of Privilege Vulnerability Description: Heap-based buffer overflow in Windows Common Log File System Driver allows an authorized attacker to elevate privileges locally. FAQ: What privileges could be gained by an attacker who successfully exploited this vulnerability? An attacker who successfully exploited this vulnerability could gain SYSTEM p

CVE-2026-20934 [HIGH] CWE-362 Windows SMB Server Elevation of Privilege Vulnerability Windows SMB Server Elevation of Privilege Vulnerability Description: Concurrent execution using shared resource with improper synchronization ('race condition') in Windows SMB Server allows an authorized attacker to elevate privileges over a network. FAQ: According to the CVSS metric, the attack complexity is high (AC:H). What does that mean for this vulnerability? Successful exploitation of this vulnerabilit

CVE-2026-20831 [HIGH] CWE-367 Windows Ancillary Function Driver for WinSock Elevation of Privilege Vulnerability Windows Ancillary Function Driver for WinSock Elevation of Privilege Vulnerability Description: Time-of-check time-of-use (toctou) race condition in Windows Ancillary Function Driver for WinSock allows an authorized attacker to elevate privileges locally. FAQ: What privileges could be gained by an attacker who successfully exploited this vulnerability? An attacker who successfully e

CVE-2023-31096 [HIGH] CWE-121 MITRE: CVE-2023-31096 Windows Agere Soft Modem Driver Elevation of Privilege Vulnerability MITRE: CVE-2023-31096 Windows Agere Soft Modem Driver Elevation of Privilege Vulnerability Description: Microsoft is aware of vulnerabilities in the third party Agere Soft Modem drivers that ship natively with supported Windows operating systems. This is an announcement of the removal of agrsm64.sys and agrsm.sys drivers. The drivers have been removed in the January 2026 cumu

CVE-2026-20860 [HIGH] CWE-843 Windows Ancillary Function Driver for WinSock Elevation of Privilege Vulnerability Windows Ancillary Function Driver for WinSock Elevation of Privilege Vulnerability Description: Access of resource using incompatible type ('type confusion') in Windows Ancillary Function Driver for WinSock allows an authorized attacker to elevate privileges locally. FAQ: What privileges could be gained by an attacker who successfully exploited this vulnerability? An attacker who su