MS15-034 - Critical: Vulnerability in HTTP.sys Could Allow Remote Code Execution (3042553) - Version: 1.1

Severity Rating: CriticalRevision Note: V1.1 (April 22, 2015): Bulletin revised to correct the update replacement entries for Windows 8 and Windows Server 2012 in the Affected Software table. This is an informational change only. There were no changes to the update files. Customers who have already successfully updated their systems do not need to take any action.Summary: This security update resolves a vulnerability in Microsoft Windows. The vulnerability could allow remote code execution if an attacker sends a specially crafted HTTP request to an affected Windows system.

Posted by on 22 April 2015 | 2:00 am

MS15-033 - Critical: Vulnerabilities in Microsoft Office Could Allow Remote Code Execution (3048019) - Version: 1.1

Severity Rating: CriticalRevision Note: V1.1 (April 21, 2015): Revised bulletin to announce a detection change for the 2553428 update for supported editions of Microsoft Word 2010. There were no changes to the update files. Customers who have already successfully updated their systems do not need to take any action.Summary: This security update resolves vulnerabilities in Microsoft Office. The most severe of the vulnerabilities could allow remote code execution if a user opens a specially crafted Microsoft Office file. An attacker who successfully exploited the vulnerabilities could run arbitrary code in the context of the current user. Customers whose accounts are configured to have fewer user rights on the system could be less impacted than those who operate with administrative user rights.

Posted by on 21 April 2015 | 2:00 am

MS15-038 - Important: Vulnerabilities in Microsoft Windows Could Allow Elevation of Privilege (3049576) - Version: 1.0

Severity Rating: ImportantRevision Note: V1.0 (April 14, 2015): Bulletin published.Summary: This security update resolves vulnerabilities in Microsoft Windows. The vulnerabilities could allow elevation of privilege if an attacker logs on to the system and runs a specially crafted application.

Posted by on 14 April 2015 | 2:00 am

MS15-042 - Important: Vulnerability in Windows Hyper-V Could Allow Denial of Service (3047234) - Version: 1.0

Severity Rating: ImportantRevision Note: V1.0 (April 14, 2015): Bulletin published.Summary: This security update resolves a vulnerability in Microsoft Windows. The vulnerability could allow denial of service if an authenticated attacker runs a specially crafted application in a virtual machine (VM) session. Note that the denial of service does not allow an attacker to execute code or elevate user rights on other VMs running on the Hyper-V host; however, it could cause other VMs on the host to not be manageable in Virtual Machine Manager.

Posted by on 14 April 2015 | 2:00 am

MS15-032 - Critical: Cumulative Security Update for Internet Explorer (3038314) - Version: 1.0

Severity Rating: CriticalRevision Note: V1.0 (April 14, 2015): Bulletin published.Summary: This security update resolves vulnerabilities in Internet Explorer. The most severe of the vulnerabilities could allow remote code execution if a user views a specially crafted webpage using Internet Explorer. An attacker who successfully exploited these vulnerabilities could gain the same user rights as the current user. Customers whose accounts are configured to have fewer user rights on the system could be less impacted than those who operate with administrative user rights.

Posted by on 14 April 2015 | 2:00 am

MS15-037 - Important: Vulnerability in Windows Task Scheduler Could Allow Elevation of Privilege (3046269) - Version: 1.0

Severity Rating: ImportantRevision Note: V1.0 (April 14, 2015): Bulletin published.Summary: This security update resolves a vulnerability in Microsoft Windows. An attacker who successfully exploited the vulnerability could leverage a known invalid task to cause Task Scheduler to run a specially crafted application in the context of the System account. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights.

Posted by on 14 April 2015 | 2:00 am

MS15-039 - Important: Vulnerability in XML Core Services Could Allow Security Feature Bypass (3046482) - Version: 1.0

Severity Rating: ImportantRevision Note: V1.0 (April 14, 2015): Bulletin published.Summary: This security update resolves a vulnerability in Microsoft Windows. The vulnerability could allow security feature bypass if a user opens a specially crafted file. In all cases, however, an attacker would have no way to force users to open the specially crafted file; an attacker would have to convince users to open the file, typically by way of an enticement in an email or Instant Messenger message.

Posted by on 14 April 2015 | 2:00 am

MS15-036 - Important: Vulnerabilities in Microsoft SharePoint Server Could Allow Elevation of Privilege (3052044) - Version: 1.0

Severity Rating: ImportantRevision Note: V1.0 (April 14, 2015): Bulletin published.Summary: This security update resolves vulnerabilities in Microsoft Office server and productivity software. The vulnerabilities could allow elevation of privilege if an attacker sends a specially crafted request to an affected SharePoint server. An attacker who successfully exploited the vulnerabilities could read content that the attacker is not authorized to read, use the victim's identity to take actions on the SharePoint site on behalf of the victim, such as change permissions and delete content, and inject malicious content in the browser of the victim.

Posted by on 14 April 2015 | 2:00 am

MS15-035 - Critical: Vulnerability in Microsoft Graphics Component Could Allow Remote Code Execution (3046306) - Version: 1.0

Severity Rating: CriticalRevision Note: V1.0 (April 14, 2015): Bulletin published.Summary: This security update resolves a vulnerability in Microsoft Windows. The vulnerability could allow remote code execution if an attacker successfully convinces a user to browse to a specially crafted website, open a specially crafted file, or browse to a working directory that contains a specially crafted Enhanced Metafile (EMF) image file. In all cases, however, an attacker would have no way to force users to take such actions; an attacker would have to convince users to do so, typically by way of enticements in email or Instant Messenger messages.

Posted by on 14 April 2015 | 2:00 am

MS15-040 - Important: Vulnerability in Active Directory Federation Services Could Allow Information Disclosure (3045711) - Version: 1.0

Severity Rating: ImportantRevision Note: V1.0 (April 14, 2015): Bulletin published.Summary: This security update resolves a privately reported vulnerability in Active Directory Federation Services (AD FS). The vulnerability could allow information disclosure if a user leaves their browser open after logging off from an application, and an attacker reopens the application in the browser immediately after the user has logged off.

Posted by on 14 April 2015 | 2:00 am

MS15-041 - Important: Vulnerability in .NET Framework Could Allow Information Disclosure (3048010) - Version: 1.0

Severity Rating: ImportantRevision Note: V1.0 (April 14, 2015): Bulletin published.Summary: This security update resolves a vulnerability in Microsoft .NET Framework. The vulnerability could allow information disclosure if an attacker sends a specially crafted web request to an affected server that has custom error messages disabled. An attacker who successfully exploited the vulnerability would be able to view parts of a web configuration file, which could expose sensitive information.

Posted by on 14 April 2015 | 2:00 am

MS14-080 - Critical: Cumulative Security Update for Internet Explorer (3008923) - Version: 3.0

Severity Rating: CriticalRevision Note: V3.0 (April 14, 2015): To comprehensively address issues with the 3008923 security update, customers running Internet Explorer 11 on either Windows 7 or Windows Server 2008 R2 should also install the 3038314 security update released on April 14, 2015. For more information, see MS15-032 or use the following Microsoft Download Center links for your specific configuration: Internet Explorer 11 on Windows 7 for 32-bit Systems (3038314) Internet Explorer 11 on Windows 7 for x64-based Systems Service Pack 1 (3038314) Internet Explorer 11 on Windows Server 2008 R2 for x64-based Systems Service Pack 1 (3038314).Summary: This security update resolves fourteen privately reported vulnerabilities in Internet Explorer. The most severe of these vulnerabilities could allow remote code execution if a user views a specially crafted webpage using Internet Explorer. An attacker who successfully exploited these vulnerabilities could gain the same user rights as the current user. Customers whose accounts are configured to have fewer user rights on the system could be less impacted than those who operate with administrative user rights.

Posted by on 14 April 2015 | 2:00 am

MS15-022 - Critical: Vulnerabilities in Microsoft Office Could Allow Remote Code Execution (3038999) - Version: 1.1

Severity Rating: CriticalRevision Note: V1.1 (March 26, 2015): Bulletin revised to correct the update replacement entry for Microsoft Excel 2007 Service Pack 3 in the Affected Software table. This is an informational change only. There were no changes to the update files. Customers who have already successfully updated their systems do not need to take any action.Summary: This security update resolves vulnerabilities in Microsoft Office. The most severe of the vulnerabilities could allow remote code execution if a user opens a specially crafted Microsoft Office file. An attacker who successfully exploited the vulnerabilities could run arbitrary code in the context of the current user. Customers whose accounts are configured to have fewer user rights on the system could be less impacted than those who operate with administrative user rights.

Posted by on 26 March 2015 | 2:00 am

MS15-031 - Important: Vulnerability in Schannel Could Allow Security Feature Bypass (3046049) - Version: 1.1

Severity Rating: ImportantRevision Note: V1.1 (March 24, 2015): Revised bulletin to add an FAQ directing customers to Microsoft Knowledge Base Article 3050509 for instructions on how to disable EXPORT ciphers after installing the update on Windows Server 2003 systems.Summary: This security update resolves a vulnerability in Microsoft Windows that facilitates exploitation of the publicly disclosed FREAK technique, an industry-wide issue that is not specific to Windows operating systems. The vulnerability could allow a man-in-the-middle (MiTM) attacker to force the downgrading of the key length of an RSA key to EXPORT-grade length in a TLS connection. Any Windows system using Schannel to connect to a remote TLS server with an exploitable cipher suite is affected.

Posted by on 24 March 2015 | 2:00 am

MS15-025 - Important: Vulnerabilities in Windows Kernel Could Allow Elevation of Privilege (3038680) - Version: 2.0

Severity Rating: ImportantRevision Note: V2.0 (March 16, 2015): To address a packaging issue for customers who are repeatedly reoffered security update 3033395 when installed on systems running supported editions of Windows Server 2003, Microsoft released update 3033395-v2 for all supported editions of Windows Server 2003. Customers who have not already installed the 3033395 update should install update 3033395-v2 to be fully protected from this vulnerability. To avoid the possibility of future detection logic problems, Microsoft recommends that customers running Windows Server 2003 who have already successfully installed the 3033395 update also apply update 3033395-v2 even though they are already protected from this vulnerability. Customers running other Microsoft operating systems are not affected by this rerelease and do not need to take any action. See Microsoft Knowledge Base Article 3033395 for more information.Summary: This security update resolves vulnerabilities in Microsoft Windows. The most severe of the vulnerabilities could allow elevation of privilege if an attacker logs on to an affected system and runs a specially crafted application. An attacker who successfully exploited the vulnerability could run arbitrary code in the security context of the account of another user who is logged on to the affected system. An attacker could then install programs; view, change, or delete data; or create new accounts potentially with full user rights.

Posted by on 16 March 2015 | 2:00 am

MS15-027 - Important: Vulnerability in NETLOGON Could Allow Spoofing (3002657) - Version: 2.0

Severity Rating: ImportantRevision Note: V2.0 (March 16, 2015): To address a connectivity issue with update 3002657 when installed on supported editions of Windows Server 2003, Microsoft released update 3002657-v2 for all supported editions of Windows Server 2003. Customers who have not already installed the 3002657 update should install update 3002657-v2 to be fully protected from this vulnerability. To avoid the possibility of future detection logic problems, Microsoft recommends that customers running Windows Server 2003 who have already successfully installed the 3002657 update also apply update 3002657-v2 even though they are already protected from this vulnerability. Customers running other Microsoft operating systems are not affected by this rerelease and do not need to take any action. See Microsoft Knowledge Base Article 3002657 for more information.Summary: This security update resolves a vulnerability in Microsoft Windows. The vulnerability could allow spoofing if an attacker who is logged on to a domain-joined system runs a specially crafted application that could establish a connection with other domain-joined systems as the impersonated user or system. The attacker must be logged on to a domain-joined system and be able to observe network traffic.

Posted by on 16 March 2015 | 2:00 am

MS15-011 - Critical: Vulnerability in Group Policy Could Allow Remote Code Execution (3000483) - Version: 1.1

Severity Rating: CriticalRevision Note: V1.1 (March 11, 2015): Bulletin revised to correct the updates replaced for all supported editions of Windows Vista, Windows Server 2008, Windows 7, and Windows Server 2008 R2. This is an informational change only. There were no changes to the update files. Customers who have already successfully updated their systems do not need to take any action.Summary: This security update resolves a privately reported vulnerability in Microsoft Windows. A remote code execution vulnerability exists in how group policy receives and applies connection data when a domain-joined system connects to a domain controller. An attacker who successfully exploited this vulnerability could take complete control of an affected system. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights.

Posted by on 11 March 2015 | 2:00 am

MS15-026 - Important: Vulnerabilities in Microsoft Exchange Server Could Allow Elevation of Privilege (3040856) - Version: 1.0

Severity Rating: ImportantRevision Note: V1.0 (March 10, 2015): Bulletin published.Summary: This security update resolves vulnerabilities in Microsoft Exchange Server. The most severe of the vulnerabilities could allow elevation of privilege if a user clicks a specially crafted URL that takes them to a targeted Outlook Web App site. An attacker would have no way to force users to visit a specially crafted website. Instead, an attacker would have to convince them to visit the website, typically by getting them to click a link in an instant messenger or email message that takes them to the attacker's website, and then convince them to click the specially crafted URL.

Posted by on 10 March 2015 | 2:00 am

MS15-018 - Critical: Cumulative Security Update for Internet Explorer (3032359) - Version: 1.0

Severity Rating: CriticalRevision Note: V1.0 (March 10, 2015): Bulletin published.Summary: This security update resolves vulnerabilities in Internet Explorer. The most severe of the vulnerabilities could allow remote code execution if a user views a specially crafted webpage using Internet Explorer. An attacker who successfully exploited these vulnerabilities could gain the same user rights as the current user. Customers whose accounts are configured to have fewer user rights on the system could be less impacted than those who operate with administrative user rights.

Posted by on 10 March 2015 | 2:00 am

MS15-023 - Important: Vulnerabilities in Kernel-Mode Driver Could Allow Elevation of Privilege (3034344) - Version: 1.0

Severity Rating: ImportantRevision Note: V1.0 (March 10, 2015): Bulletin published.Summary: This security update resolves four privately reported vulnerabilities in Microsoft Windows. The most severe of these vulnerabilities could allow security feature bypass if an attacker logs on to the system and runs a specially crafted application designed to increase privileges. An attacker could then install programs; view, change, or delete data; or create new accounts with full administrative rights.

Posted by on 10 March 2015 | 2:00 am

MS15-024 - Important: Vulnerability in PNG Processing Could Allow Information Disclosure (3035132) - Version: 1.0

Severity Rating: ImportantRevision Note: V1.0 (March 10, 2015): Bulletin published.Summary: This security update resolves a privately reported vulnerability in Microsoft Windows. The vulnerability could allow information disclosure if an attacker runs a specially crafted application on an affected system or convinces a user to visit a website that contains specially crafted PNG images.

Posted by on 10 March 2015 | 2:00 am

MS15-020 - Critical: Vulnerabilities in Microsoft Windows Could Allow Remote Code Execution (3041836) - Version: 1.1

Severity Rating: CriticalRevision Note: V1.1 (March 10, 2015): Bulletin revised to better explain the attack vector for the DLL Planting Remote Code Execution Vulnerability (CVE-2015-0096).Summary: This security update resolves two privately reported vulnerabilities in Microsoft Windows. The vulnerabilities could allow remote code execution if an attacker successfully convinces a user to browse to a specially crafted website, open a specially crafted file, or open a file in a working directory that contains a specially crafted DLL file.

Posted by on 10 March 2015 | 2:00 am

MS15-029 - Important: Vulnerability in Windows Photo Decoder Component Could Allow Information Disclosure (3035126) - Version: 1.0

Severity Rating: ImportantRevision Note: V1.0 (March 10, 2015): Bulletin published.Summary: This security update resolves a privately reported vulnerability in Microsoft Windows. The vulnerability could allow information disclosure if a user browses to a website containing a specially crafted JPEG XR (.JXR) image. This vulnerability would not allow an attacker to execute code or to elevate their user rights directly, but it could be used to obtain information that could be used to try to further compromise the affected system.

Posted by on 10 March 2015 | 2:00 am

MS15-019 - Critical: Vulnerability in VBScript Scripting Engine Could Allow Remote Code Execution (3040297) - Version: 1.0

Severity Rating: CriticalRevision Note: V1.0 (March 10, 2015): Bulletin published.Summary: This security update resolves a vulnerability in the VBScript scripting engine in Microsoft Windows. The vulnerability could allow remote code execution if a user visits a specially crafted website. An attacker who successfully exploited this vulnerability could gain the same user rights as the current user. If the current user is logged on with administrative user rights, an attacker who successfully exploited this vulnerability could take complete control of an affected system. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights.

Posted by on 10 March 2015 | 2:00 am

MS15-028 - Important: Vulnerability in Windows Task Scheduler Could Allow Security Feature Bypass (3030377) - Version: 1.0

Severity Rating: ImportantRevision Note: V1.0 (March 10, 2015): Bulletin published.Summary: This security update resolves a privately reported vulnerability in Microsoft Windows. The vulnerability could allow Security Feature Bypass if a user runs a specially crafted application that is designed to cause Task Scheduler to improperly validate impersonation-level security.

Posted by on 10 March 2015 | 2:00 am