CVE-2026-20927 Windows SMB Server Denial of Service Vulnerability

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CVE-2026-20926

CVE-2026-20926 describes a race condition in the Windows SMB Server that allows an authorized network attacker to elevate privileges. The vulnerability affects Windows SMB Server components and is tied to concurrent execution on a shared resource with improper synchronization. Mitigation is via M...

CVE-2026-20921

CVE-2026-20921 is a Windows SMB Server vulnerability described as a race condition in a shared resource that could allow an authenticated attacker to elevate privileges over the network. Connected sources indicate this CVE is listed under Windows SMB Server with an exploitability/impact profile (...

CVE-2026-20921

Concurrent execution using shared resource with improper synchronization 'race condition' in Windows SMB Server allows an authorized attacker to elevate privileges over a network...

CVE-2026-20921 Windows SMB Server Elevation of Privilege Vulnerability

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CVE-2026-20919 Windows SMB Server Elevation of Privilege Vulnerability

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CVE-2025-68817

In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix use-after-free in ksmbdtreeconnectput under concurrency Under high concurrency, A tree-connection object tcon is freed on a disconnect path while another path still holds a reference and later executes put/write on it...

Windows SMB Server Elevation of Privilege Vulnerability

Concurrent execution using shared resource with improper synchronization 'race condition' in Windows SMB Server allows an authorized attacker to elevate privileges over a network...

Windows SMB Server Elevation of Privilege Vulnerability

Concurrent execution using shared resource with improper synchronization 'race condition' in Windows SMB Server allows an authorized attacker to elevate privileges over a network...

Windows SMB Server Elevation of Privilege Vulnerability

Concurrent execution using shared resource with improper synchronization 'race condition' in Windows SMB Server allows an authorized attacker to elevate privileges over a network...

Windows SMB Server Elevation of Privilege Vulnerability

Concurrent execution using shared resource with improper synchronization 'race condition' in Windows SMB Server allows an authorized attacker to elevate privileges over a network...

Windows SMB Server Elevation of Privilege Vulnerability

Concurrent execution using shared resource with improper synchronization 'race condition' in Windows SMB Server allows an authorized attacker to elevate privileges over a network...

CVE-2025-68806

In CVE-2025-68806, the Linux kernel’s ksmbd SMB server code suffers a buffer-validation issue in smb2_set_ea.c, where EA Name null-terminator handling was ignored in the EaNameLength calculation. The root cause: buffer size checks did not account for the terminating character (+1), enabling impro...

Microsoft Windows SMB Server 竞争条件问题漏洞

Microsoft Windows SMB Server is a network file-sharing protocol from Microsoft. It allows applications on a computer to read and write files and request services from server programs on a computer network. An elevation of privilege vulnerability exists in Microsoft Windows SMB Server due to...

MiracleLinux 9 : kernel-5.14.0-570.58.1.el9_6 (AXSA:2025-11021:85)

The remote MiracleLinux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the AXSA:2025-11021:85 advisory. kernel: vsock/virtio: Validate length in packet header before skbput CVE-2025-39718 kernel: NFS: Fix filehandle bounds checking in nfsfhtodentry...

ROS-20260113-7306

A vulnerability in the createleasebuf function of the SMB subsystem of the Linux kernel is related to pointer dereferencing. Exploitation of the vulnerability could allow an attacker to cause a denial of service...

Microsoft Windows SMB Server 竞争条件问题漏洞

Microsoft Windows SMB Server is a network file-sharing protocol from Microsoft. It allows applications on a computer to read and write files and request services from server programs on a computer network. An elevation of privilege vulnerability exists in Microsoft Windows SMB Server, which can b...

PT-2026-2538

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description The smb2 set ea function, responsible for handling Extended Attributes EA, had incorrect buffer validation checks. These checks did not account for the size of the null terminator requir...

Microsoft Windows SMB Server 竞争条件问题漏洞

Microsoft Windows SMB Server is a network file-sharing protocol from Microsoft. It allows applications on a computer to read and write files and request services from server programs on a computer network. An elevation of privilege vulnerability exists in Microsoft Windows SMB Server due to...

ROS-20260113-7352

A vulnerability in the decryptrawdata function in the fs/smb/client/smb2ops.c module of the SMB subsystem of the Linux kernel is related to the reuse of previously freed memory. Exploitation of the vulnerability may allow an intruder to affect confidentiality, integrity and availability of...