Microsoft vulnerabilities
Published CVEs affecting Microsoft products: 5262 record(s), with severity, exploitation and fixes.
Windows Server 2025 3001Windows Server 2025 (Server Core installation) 2987Windows 11 Version 24H2 2873Windows 11 24h2 2856Windows 11 Version 25H2 2825Windows Server 2022 2820Windows 11 25h2 2808Windows Server 2019 2708Windows Server 2019 (Server Core installation) 2657Windows 10 1809 2624Windows 10 Version 1809 2590Windows 10 Version 21H2 2567Windows 11 version 26H1 2555Windows 10 21h2 2551Windows 10 Version 22H2 2550Windows 10 22h2 2537Windows 11 26h1 2516Windows 11 version 23H2 2383Windows 11 23h2 2364Windows Server 2016 2297Windows Server 2016 (Server Core installation) 2233Windows 10 1607 2214Windows 10 Version 1607 2171Windows Server 2012 1885Windows Server 2012 R2 1807Windows Server 2012 R2 (Server Core installation) 1798Windows Server 2012 (Server Core installation) 1693Windows 11 Version 26H2 1007Windows 11 26h2 980Microsoft 365 Apps for Enterprise 576365 Apps 575Microsoft Office LTSC 2024 554Microsoft Office LTSC 2021 551Windows Server 2022 23h2 544Windows Server 2022, 23H2 Edition (Server Core installation) 543Office 2021 465Office 2024 465Microsoft Office LTSC for Mac 2021 462Microsoft Office LTSC for Mac 2024 462Microsoft Office 365 for Mac 389
CVE-2026-45497
High · 8.8
CWE-77 Jun 4, 2026
Microsoft M365 Copilot Remote Code Execution Vulnerability
Improper neutralization of special elements used in a command ('command injection') in Microsoft Copilot allows an authorized attacker to execute code over a network.
CVE-2026-42824
High · 7.5
CWE-77 Jun 4, 2026
M365 Copilot Information Disclosure Vulnerability
Improper neutralization of special elements used in a command ('command injection') in M365 Copilot allows an unauthorized attacker to disclose information over a network.
CVE-2026-47294
High · 8.0
CWE-78 Jun 1, 2026
Microsoft SharePoint Server Remote Code Execution Vulnerability
Improper neutralization of special elements used in an os command ('os command injection') in Microsoft Office SharePoint allows an authorized attacker to execute code over a network.
CVE-2026-46544
Medium · 5.3
CWE-639 May 27, 2026
Microsoft UFO reuses client-supplied WebSocket session IDs and replays stale task results to new authenticated requesters
Microsoft UFO open-source framework for intelligent automation across devices and platforms. In 3.0.1-4-ge2626659, Microsoft UFO accepts client-supplied session_id values in WebSocket task messages and reuses an existing in-memory session object if that session_id already exists. If a prior session has completed and remains in memory with populated results, a different authenticated client can send a new TASK message using the same session_id. The server re-enters the existing session object and sends the stale stored result to the new requester through the normal send_task_end() callback path. This is an authenticated cross-client stale result replay issue. The issue requires that the attacker knows or can predict a live or recently completed session_id.
CVE-2026-46538
Medium · 5.9
CWE-294 May 27, 2026
Microsoft UFO accepts cross-device TASK_END messages by session_id only, allowing peer task-result injection
Microsoft UFO open-source framework for intelligent automation across devices and platforms. In 3.0.1-4-ge2626659, Microsoft UFO's constellation client tracks pending task responses by session_id only and does not verify that a TASK_END message came from the device that originally received the task. When the constellation sends a task to a target device, it records a pending Future under a session key. The pending task record stores the expected device ID, but the completion path ignores that binding. If another authenticated peer device sends a forged TASK_END with the same session_id, the constellation accepts the response and completes the victim device's pending Future with attacker-controlled result data. This is an authenticated cross-device task-result injection issue.
CVE-2026-46416
Medium · 6.3
CWE-284 May 27, 2026
Microsoft UFO shared WebSocket handler state causes cross-client response hijacking
Microsoft UFO open-source framework for intelligent automation across devices and platforms. In 3.0.1-4-ge2626659, Microsoft UFO creates one shared UFOWebSocketHandler instance and reuses it for multiple authenticated WebSocket connections. The handler stores per-connection protocol objects in mutable instance fields. Each new WebSocket connection overwrites those fields. Later, message handlers send responses through the shared fields instead of through protocol objects bound to the originating connection. As a result, the most recently connected authenticated client can receive protocol responses that belong to another authenticated client.
CVE-2026-46414
High · 8.8
CWE-290 May 27, 2026
Microsoft UFO WebSocket role spoofing allows authenticated peer task hijacking
Microsoft UFO open-source framework for intelligent automation across devices and platforms. In 3.0.1-4-ge2626659, Microsoft UFO's WebSocket control plane trusts client-supplied identity and role fields in task messages. A client connection can register as a normal device, but later send a TASK message claiming client_type="constellation" and target_id=<victim-device-id>. The server trusts the role and target values from the wire message rather than enforcing the role registered for that WebSocket connection. As a result, any authenticated WebSocket client with the shared server token can spoof the higher-privilege constellation role and dispatch attacker-controlled tasks to another connected device. The same client registry also allows duplicate client_id registration, overwriting an existing live client's stored websocket, role, and task protocol. This is an authenticated WebSocket role/identity spoofing issue leading to peer task hijacking.
CVE-2026-46402
High · 8.1
CWE-22 May 27, 2026
Microsoft UFO uses untrusted task_name in log paths, allowing authenticated path traversal and log file creation outside the logs directory
Microsoft UFO open-source framework for intelligent automation across devices and platforms. In 3.0.1-4-ge2626659, Microsoft UFO uses the user-controlled task_name value directly when constructing session log paths. An authenticated client can supply path traversal sequences in task_name and cause UFO to create log directories and log files outside the intended logs/ directory.
CVE-2026-45322
High · 7.8
CWE-78 May 27, 2026
OS Command Injection in Microsoft UFO Shell Action Replay via Stored Session JSON
Microsoft UFO open-source framework for intelligent automation across devices and platforms. Microsoft UFO tagged releases up to and including v3.0.0 contain an OS command injection vulnerability in the shell action replay path. In affected releases, ShellReceiver.run_shell() passes a command string from action parameters directly to subprocess.Popen() with shell=True and executable=powershell.exe. The same shell-execution behavior is also reachable through ShellReceiver.execute_command(). The shell receiver is invoked by action classes such as RunShellCommand.execute() and ExecuteCommand.execute(), which forward stored action parameters to the shell receiver. Because UFO stores planned and executed actions in per-session JSON records, an attacker who can write or modify a session/action JSON file can plant a shell action. When the session is resumed or replayed, UFO executes the attacker's command as the UFO process user.
CVE-2026-47280
Critical · 9.8
CWE-287 May 22, 2026
Azure Resource Manager Elevation of Privilege Vulnerability
Improper authentication in Azure Resource Manager (ARM) allows an unauthorized attacker to elevate privileges over a network.
CVE-2026-45659
High · 8.8
KEV Urgent · 72 Public exploit Ransomware CWE-502 May 22, 2026
Microsoft SharePoint Server Deserialization of Untrusted Data Vulnerability
Deserialization of untrusted data in Microsoft Office SharePoint allows an authorized attacker to execute code over a network.
CVE-2026-42901
Critical · 10.0
CWE-346 May 22, 2026
Microsoft Entra ID Elevation of Privilege Vulnerability
Origin validation error in Microsoft Entra ID allows an unauthorized attacker to elevate privileges over a network.
CVE-2026-42827
High · 7.5
CWE-77 May 22, 2026
M365 Copilot Information Disclosure Vulnerability
Improper neutralization of special elements used in a command ('command injection') in M365 Copilot allows an unauthorized attacker to disclose information over a network.
CVE-2026-41104
High · 7.5
CWE-502 May 22, 2026
Microsoft Planetary Computer Pro Information Disclosure Vulnerability
Deserialization of untrusted data in Microsoft Planetary Computer Pro allows an unauthorized attacker to disclose information over a network.
CVE-2026-41090
Critical · 9.3
CWE-77 May 22, 2026
Microsoft Copilot Tampering Vulnerability
Improper neutralization of special elements used in a command ('command injection') in Microsoft Copilot allows an unauthorized attacker to perform tampering over a network.
CVE-2026-40412
Critical · 9.8
CWE-434 May 22, 2026
Azure Orbital Spatio Remote Code Execution Vulnerability
Unrestricted upload of file with dangerous type in Azure Orbital Spatio allows an unauthorized attacker to execute code over a network.
CVE-2026-40411
High · 8.8
CWE-20 May 22, 2026
Azure Virtual Network Gateway Remote Code Execution Vulnerability
Improper input validation in Azure Virtual Network Gateway allows an authorized attacker to execute code over a network.
CVE-2026-35430
High · 8.8
CWE-639 May 22, 2026
Azure Privileged Identity Management (PIM) Elevation of Privilege Vulnerability
Authorization bypass through user-controlled key in Azure Privileged Identity Management (PIM) allows an authorized attacker to elevate privileges over a network.
CVE-2026-33843
Critical · 9.8
CWE-288 May 22, 2026
Microsoft Azure Active Directory B2C Elevation of Privilege Vulnerability
Authentication bypass using an alternate path or channel in Microsoft Azure Active Directory B2C allows an unauthorized attacker to elevate privileges over a network.
CVE-2026-26147
High · 7.7
CWE-20 May 22, 2026
Azure Stack HCI Information Disclosure Vulnerability
Improper input validation in Azure Compute Gallery allows an authorized attacker to disclose information over a network.
CVE-2026-23663
High · 7.5
CWE-269 May 22, 2026
Microsoft Global Secure Access (GSA) Information Disclosure Vulnerability
Improper privilege management in Azure Entra ID allows an unauthorized attacker to elevate privileges over a network.
CVE-2026-23652
Critical · 9.8
CWE-77 May 22, 2026
Microsoft Power Pages Remote Code Execution Vulnerability
Improper neutralization of special elements used in a command ('command injection') in Microsoft Power Pages allows an unauthorized attacker to execute code over a network.
CVE-2026-45584
High · 8.1
CWE-122 May 20, 2026
Microsoft Defender Remote Code Execution Vulnerability
Heap-based buffer overflow in Microsoft Defender allows an unauthorized attacker to execute code over a network.
CVE-2026-45498
High · 7.5
KEV High · 62 Public exploit CWE-400 May 20, 2026
Microsoft Defender Denial of Service Vulnerability
Microsoft Defender Denial of Service Vulnerability
CVE-2026-42834
High · 7.8
CWE-59 May 20, 2026
Windows Admin Center in Azure Portal Elevation of Privilege Vulnerability
Improper access control in Windows Admin Center allows an authorized attacker to elevate privileges over a network.