Microsoft Patch Tuesday, October 2026: the CVEs, page 5
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Microsoft Patch Tuesday October 2026: the CVEs Microsoft published on 13 October 2026, the second Tuesday of the month, with CVSS, EPSS, CISA KEV and public exploits to show what to patch first. Narrow it: in CISA KEV · critical. The same day: Adobe, SAP. Earlier: Sep 2026, Aug 2026, Jul 2026, Jun 2026, May 2026, Apr 2026, Mar 2026, Feb 2026, Jan 2026, Dec 2025, Nov 2025, Oct 2025. Other lists: CISA KEV list, CVE exploit search, Latest critical CVEs, Ransomware CVEs, New CVEs today, This week, Patch Tuesday
- 7.8CVE-2026-88070EPSS 0.3%
Out-of-bounds read in Windows BitLocker allows an authorized attacker to elevate privileges locally.
- 7.5CVE-2026-87716EPSS 1.1%
Heap-based buffer overflow in Windows Storage Spaces Controller allows an unauthorized attacker to deny service over a network.
- 7.0CVE-2026-87715EPSS 0.3%
Use after free in Windows Installer allows an authorized attacker to elevate privileges locally.
- 6.5CVE-2026-87714EPSS 0.4%
Missing authorization in WebDAV allows an authorized attacker to bypass a security feature over a network.
- 7.5CVE-2026-87713EPSS 0.3%
Use after free in Windows Bluetooth Port Driver allows an unauthorized attacker to elevate privileges over an adjacent network.
- 7.8CVE-2026-87712EPSS 0.2%
Use after free in Windows Quality of Service (QoS) Packet Scheduler allows an authorized attacker to elevate privileges locally.
- 7.8CVE-2026-87711EPSS 0.2%
Stack-based buffer overflow in Windows Installer allows an authorized attacker to elevate privileges locally.
- 7.0CVE-2026-87710EPSS 0.1%
Improper access control in Microsoft Local Security Authority Server (lsasrv) allows an authorized attacker to elevate privileges locally.
- 5.5CVE-2026-87709EPSS 0.3%
Improper access control in Windows Host Guardian Service allows an authorized attacker to perform tampering locally.
- 7.0CVE-2026-87708EPSS 0.2%
Use after free in Windows Installer allows an authorized attacker to elevate privileges locally.
- 7.8CVE-2026-87707EPSS 0.2%
Heap-based buffer overflow in Windows Fax and Scan Service allows an authorized attacker to elevate privileges locally.
- 7.8CVE-2026-87706EPSS 0.2%
Heap-based buffer overflow in Windows Storage Spaces Controller allows an authorized attacker to elevate privileges locally.
- 7.4CVE-2026-87705EPSS 0.4%
Improper verification of source of a communication channel in Windows Hyper-V allows an unauthorized attacker to bypass a security feature over an adjacent network.
- 7.0CVE-2026-87704EPSS 0.3%
Use after free in Windows Installer allows an authorized attacker to elevate privileges locally.
- 7.8CVE-2026-87702EPSS 0.4%
Integer overflow or wraparound in Windows Resource Management (MRM) allows an authorized attacker to elevate privileges locally.
- 7.8CVE-2026-87700EPSS 0.3%
Use after free in Windows Installer allows an authorized attacker to elevate privileges locally.
- 7.8CVE-2026-87699EPSS 0.4%
Heap-based buffer overflow in Winlogon allows an authorized attacker to elevate privileges locally.
- 5.5CVE-2026-87698EPSS 0.4%
Out-of-bounds read in Windows Remote Access Service Infrastructure allows an authorized attacker to disclose information locally.
- 8.8CVE-2026-87697EPSS 0.8%
Deserialization of untrusted data in .NET allows an unauthorized attacker to execute code over a network.
- 7.5CVE-2026-87696EPSS 0.4%
Improper verification of cryptographic signature in Microsoft Exchange Server allows an authorized attacker to elevate privileges over a network.
- 7.8CVE-2026-87695EPSS 0.3%
Inclusion of functionality from untrusted control sphere in Microsoft Exchange Server allows an authorized attacker to elevate privileges locally.
- 7.8CVE-2026-87694EPSS 0.4%
Use after free in Windows Installer allows an authorized attacker to elevate privileges locally.
- 7.0CVE-2026-87693EPSS 0.3%
Use after free in Windows Installer allows an authorized attacker to elevate privileges locally.
- 7.8CVE-2026-87692EPSS 2.3%
Deserialization of untrusted data in Microsoft Exchange Server allows an authorized attacker to elevate privileges locally.
- 7.8CVE-2026-87691EPSS 0.2%
Use after free in Windows Management Services allows an authorized attacker to elevate privileges locally.
- 7.8CVE-2026-85945EPSS 0.4%
Use after free in Windows Kernel allows an authorized attacker to elevate privileges locally.
- 7.0CVE-2026-85943EPSS 0.2%
Time-of-check time-of-use (toctou) race condition in Reliable Multicast Transport Driver (RMCAST) allows an authorized attacker to elevate privileges locally.
- 7.0CVE-2026-85941EPSS 0.2%
Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Installer allows an authorized attacker to elevate privileges locally.
- 5.3CVE-2026-85939EPSS 0.4%
Weak authentication in Windows Kernel allows an authorized attacker to bypass a security feature over a network.
- 5.5CVE-2026-85938EPSS 0.3%
Improper access control in Windows Broadcast DVR User Service allows an authorized attacker to disclose information locally.
- 8.8CVE-2026-85936EPSS 0.5%
Double free in Windows Shell allows an unauthorized attacker to execute code over a network.
- 5.5CVE-2026-85935EPSS 0.4%
Buffer over-read in Windows USB Driver allows an authorized attacker to disclose information locally.
- 7.0CVE-2026-85934EPSS 0.2%
Use after free in Windows AppX Deployment Service allows an authorized attacker to elevate privileges locally.
- 7.8CVE-2026-85933EPSS 0.2%
Use after free in Windows Print Spooler Components allows an authorized attacker to elevate privileges locally.
- 6.5CVE-2026-85932EPSS 1.2%
Improper limitation of a pathname to a restricted directory ('path traversal') in Microsoft Office SharePoint allows an authorized attacker to disclose information over a network.
- 8.8CVE-2026-85931EPSS 0.9%
Heap-based buffer overflow in Windows Distributed File System (DFS) allows an authorized attacker to execute code over a network.
- 7.0CVE-2026-85930EPSS 0.2%
Use after free in Windows Image Acquisition allows an authorized attacker to elevate privileges locally.
- 9.8CVE-2026-85928EPSS 0.6%
Heap-based buffer overflow in Windows Volume Manager Extension Driver allows an unauthorized attacker to execute code over a network.
- 7.8CVE-2026-85927EPSS 0.3%
Heap-based buffer overflow in Windows Universal Plug and Play (UPnP) Device Host allows an authorized attacker to elevate privileges locally.
- 8.1CVE-2026-85926EPSS 0.7%
Use after free in Windows Secure Socket Tunneling Protocol (SSTP) allows an unauthorized attacker to execute code over a network.
- 8.2CVE-2026-85925EPSS 0.5%
Improper restriction of communication channel to intended endpoints in Azure Key Vault allows an authorized attacker to elevate privileges over a network.
- 7.4CVE-2026-85922EPSS 0.6%
Weak authentication in Azure Key Vault allows an unauthorized attacker to bypass a security feature over a network.
- 7.0CVE-2026-85920EPSS 0.2%
Time-of-check time-of-use (toctou) race condition in Windows BitLocker allows an authorized attacker to elevate privileges locally.
- 7.0CVE-2026-85918EPSS 0.2%
Use after free in Windows Universal Plug and Play (UPnP) Device Host allows an authorized attacker to elevate privileges locally.
- 5.5CVE-2026-85916EPSS 0.4%
Exposure of private personal information to an unauthorized actor in Azure Active Directory allows an unauthorized attacker to disclose information locally.
- 7.8CVE-2026-85915EPSS 0.3%
Heap-based buffer overflow in Windows PCI Bus Driver allows an authorized attacker to elevate privileges locally.
- 7.0CVE-2026-85914EPSS 0.2%
Use after free in Windows Embedded Mode Service allows an authorized attacker to elevate privileges locally.
- 7.0CVE-2026-85912EPSS 0.2%
Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Clipboard User Service allows an authorized attacker to elevate privileges locally.
- 7.8CVE-2026-85911EPSS 0.4%
Use after free in Windows StateRepository API allows an authorized attacker to elevate privileges locally.
- 5.5CVE-2026-85910EPSS 0.4%
Buffer over-read in Windows StateRepository API allows an authorized attacker to disclose information locally.
- 5.5CVE-2026-85909EPSS 0.4%
Out-of-bounds read in Windows Universal Disk Format File System Driver (UDFS) allows an authorized attacker to disclose information locally.
- 7.8CVE-2026-85908EPSS 0.4%
Heap-based buffer overflow in Windows Win32K - GRFX allows an authorized attacker to elevate privileges locally.
- 7.8CVE-2026-85906EPSS 0.3%
Use after free in Windows Direct Composition allows an authorized attacker to elevate privileges locally.
- 8.8CVE-2026-85905EPSS 0.4%
Heap-based buffer overflow in Windows UI Immersive Server allows an authorized attacker to elevate privileges locally.
- 7.0CVE-2026-85904EPSS 0.2%
Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Device Association Service allows an authorized attacker to elevate privileges locally.
- 8.8CVE-2026-85903EPSS 0.7%
Untrusted pointer dereference in DNS Server allows an unauthorized attacker to execute code over a network.
- 7.8CVE-2026-85902EPSS 0.4%
Heap-based buffer overflow in Windows Direct Composition allows an authorized attacker to elevate privileges locally.
- 7.8CVE-2026-85901EPSS 0.4%
Heap-based buffer overflow in Windows Win32K - GRFX allows an authorized attacker to elevate privileges locally.
- 8.8CVE-2026-85900EPSS 1.5%
Deserialization of untrusted data in Microsoft Office SharePoint allows an authorized attacker to execute code over a network.
- 7.5CVE-2026-85891EPSS 0.9%
Exposure of sensitive information to an unauthorized actor in Azure HDInsight allows an unauthorized attacker to disclose information over a network.
- 7.8CVE-2026-85884EPSS 0.4%
Missing authentication for critical function in Windows Health and Optimized Experiences Service allows an authorized attacker to elevate privileges locally.
- 8.0CVE-2026-85881EPSS 0.7%
Stack-based buffer overflow in Microsoft Graphics Component allows an authorized attacker to elevate privileges over a network.
- 7.0CVE-2026-85879EPSS 0.2%
Time-of-check time-of-use (toctou) race condition in Windows Subsystem for Linux allows an authorized attacker to elevate privileges locally.
- 7.8CVE-2026-85874EPSS 0.4%
Use after free in Windows Message Queuing Queue Manager allows an authorized attacker to execute code locally.
- 6.5CVE-2026-85873EPSS 1.0%
Improper authorization in Skype for Business and Microsoft Lync allows an authorized attacker to elevate privileges over a network.
- 7.8CVE-2026-85872EPSS 0.3%
Use after free in Windows Storage VSP Driver allows an authorized attacker to elevate privileges locally.
- 7.8CVE-2026-85871EPSS 0.3%
Heap-based buffer overflow in Windows Kernel-Mode Drivers allows an authorized attacker to elevate privileges locally.
- 7.0CVE-2026-85870EPSS 0.3%
Heap-based buffer overflow in Windows Common Log File System Driver allows an authorized attacker to elevate privileges locally.
- 7.8CVE-2026-85869EPSS 0.3%
Heap-based buffer overflow in Microsoft Windows Search Component allows an authorized attacker to elevate privileges locally.
- 7.0CVE-2026-85868EPSS 0.3%
Use after free in Windows Common Log File System Driver allows an authorized attacker to elevate privileges locally.
- 7.8CVE-2026-85867EPSS 0.2%
Heap-based buffer overflow in Windows Remote Access Connection Manager allows an authorized attacker to elevate privileges locally.
- 4.7CVE-2026-85866EPSS 0.4%
Exposure of sensitive system information to an unauthorized control sphere in Windows ALPC allows an authorized attacker to disclose information locally.
- 5.5CVE-2026-85865EPSS 0.3%
Improper authentication in Windows DHCP Server allows an authorized attacker to bypass a security feature locally.
- 7.8CVE-2026-85864EPSS 0.3%
Improper privilege management in Python allows an authorized attacker to elevate privileges locally.
- 7.8CVE-2026-85863EPSS 0.2%
Use after free in Windows Clipboard User Service allows an authorized attacker to elevate privileges locally.
- 7.8CVE-2026-85861EPSS 0.2%
Use after free in Windows Clipboard User Service allows an authorized attacker to elevate privileges locally.
- 7.8CVE-2026-85860EPSS 0.2%
Use after free in Windows Message Queuing Queue Manager allows an authorized attacker to elevate privileges locally.
- 6.5CVE-2026-85859EPSS 0.8%
Null pointer dereference in Windows Message Queuing Queue Manager allows an authorized attacker to deny service over a network.
- 7.8CVE-2026-85858EPSS 0.2%
Out-of-bounds read in Windows Win32 Kernel Subsystem allows an authorized attacker to elevate privileges locally.
- 5.5CVE-2026-85857EPSS 0.5%
Insertion of sensitive information into log file in Windows Kernel-Mode Drivers allows an authorized attacker to disclose information locally.
- 7.1CVE-2026-85856EPSS 0.4%
Heap-based buffer overflow in Windows Internet Connection Sharing (ICS) allows an authorized attacker to execute code over an adjacent network.
- 7.0CVE-2026-85855EPSS 0.3%
Use after free in Windows DWM Core Library allows an authorized attacker to elevate privileges locally.
- 7.0CVE-2026-85854EPSS 0.2%
Use after free in Windows DWM Core Library allows an authorized attacker to elevate privileges locally.
- 7.0CVE-2026-85853EPSS 0.2%
Out-of-bounds read in Windows DWM Core Library allows an authorized attacker to elevate privileges locally.
- 5.5CVE-2026-85852EPSS 0.4%
Out-of-bounds read in Windows Management Instrumentation allows an authorized attacker to disclose information locally.
- 7.8CVE-2026-85851EPSS 0.3%
Use after free in Windows SmartScreen allows an authorized attacker to elevate privileges locally.
- 7.8CVE-2026-85850EPSS 0.3%
Release of invalid pointer or reference in Windows Kernel allows an authorized attacker to elevate privileges locally.
- 7.8CVE-2026-85849EPSS 0.5%
Improper link resolution before file access ('link following') in Windows AppX Deployment Service allows an authorized attacker to elevate privileges locally.
- 7.8CVE-2026-85848EPSS 0.4%
Heap-based buffer overflow in Windows Background Intelligent Transfer Service (BITS) allows an authorized attacker to elevate privileges locally.
- 6.5CVE-2026-85847EPSS 0.7%
Out-of-bounds read in Windows Print Spooler Components allows an unauthorized attacker to disclose information over a network.
- 7.0CVE-2026-85846EPSS 0.2%
Use after free in Windows Web Account Manager allows an authorized attacker to elevate privileges locally.
- 7.8CVE-2026-85843EPSS 0.4%
Use of uninitialized resource in Windows Background Intelligent Transfer Service (BITS) allows an authorized attacker to elevate privileges locally.
- 7.8CVE-2026-85842EPSS 0.3%
Use of externally-controlled format string in Windows Image Acquisition allows an authorized attacker to elevate privileges locally.
- 6.6CVE-2026-85841EPSS 0.6%
Use after free in Windows DHCP Server allows an authorized attacker to execute code over a network.
- 6.5CVE-2026-85840EPSS 1.0%
Files or directories accessible to external parties in Windows Event Viewer allows an authorized attacker to disclose information over a network.
- 7.8CVE-2026-85837EPSS 0.3%
Out-of-bounds read in Windows Kernel allows an authorized attacker to elevate privileges locally.
- 7.8CVE-2026-85836EPSS 0.3%
Use after free in Windows Kernel allows an authorized attacker to elevate privileges locally.
- 5.5CVE-2026-85835EPSS 0.4%
Buffer over-read in Servicing Stack Updates allows an authorized attacker to disclose information locally.
- 7.0CVE-2026-85834EPSS 0.2%
Heap-based buffer overflow in Windows TCP/IP allows an authorized attacker to elevate privileges locally.
- 7.8CVE-2026-85833EPSS 0.3%
Use after free in Windows Modern Device Management (MDM) allows an authorized attacker to elevate privileges locally.