CVE-2025-33073

CVE-2025-33073 — Windows SMB Client NTLM Reflection EoP Research writeup by Sentinel AI Defense. Defensive analysis only — no working exploit or PoC is published here. An improper access control flaw in the Windows SMB Client that revives NTLM reflection techniques thought to be mitigated — letti...

CVE-2026-98318

The Linux kernel contains a vulnerability in the SMB client where absolute native symlink targets are not properly validated before NT fixups when symlinkroot is unset. This allows an absolute target to be copied without conversion to an NT drive path, causing subsequent code to assume an NT pref...

CVE-2026-98175

A use-after-free vulnerability exists in the Linux kernel 's SMB client. The issue occurs because clean_demultiplex_info() cancels server->echo delayed work but fails to cancel server->reconnect work before calling kfree_sensitive(server). This can lead to a use-after-free read of server-&g...

EUVD-2026-93102

In the Linux kernel, the following vulnerability has been resolved: smb: client: fix rlist race and missing initialization TCPServerInfo.rlist is allocated via kzalloc which zeros both -next and -prev to NULL instead of pointing to itself, making listempty always return false and listadd...

CVE-2026-98174

The Linux kernel contains a vulnerability in the SMB client related to the TCP_Server_Info.rlist structure. The issue stems from using kzalloc, which incorrectly initializes ->next and ->prev pointers to NULL instead of pointing to the structure itself, causing list_empty() to return false ...

CVE-2026-98173

The Linux kernel contains a use-after-free vulnerability in the SMB client component within the cifs_try_adding_channels() function. The issue occurs because the function captures the next entry in ses->iface_list while holding iface_lock, but then drops the lock during cifs_ses_add_channel()....

EUVD-2026-93100

In the Linux kernel, the following vulnerability has been resolved: smb: client: fix smbdconnection leak on cifsgettcpsession error When an RDMA connection is successfully established via smbdgetconnection but cifsgettcpsession later fails e.g. kthreadcreate returns an error, the error path frees...

CVE-2026-98172

The Linux kernel contains a vulnerability in the SMB client where an smbd_connection leak occurs. When an RDMA connection is successfully established via smbd_get_connection() but cifs_get_tcp_session() subsequently fails (for example, if kthread_create() returns an error), the error path incorre...

CVE-2026-98171

The Linux kernel contains a vulnerability in the SMB client 's handling of compound encrypted frames within the receive_encrypted_standard() function. The issue stems from pointer lifecycle errors and insufficient bounds checking. Specifically, a use-after-free can occur because next_buffer is no...

EUVD-2026-93098

In the Linux kernel, the following vulnerability has been resolved: smb: client: fix OOB struct field reads in movesmb2eatocifs In movesmb2eatocifs, the while srcsize 0 loop condition is insufficient. It allows iteration to continue even if the remaining srcsize is too small to contain a complete...

CVE-2026-98167

The Linux kernel SMB client contains a vulnerability in receive_encrypted_standard() where server->total_read incorrectly maintains the full decrypted frame size while processing sub-PDUs of a compound encrypted frame . This oversight causes cifs_handle_standard() to pass an incorrect size to ...

EUVD-2026-93095

In the Linux kernel, the following vulnerability has been resolved: smb: client: fix server-totalread for compound encrypted PDUs In receiveencryptedstandard, server-totalread is left at the full decrypted frame size when walking sub-PDUs of a compound encrypted frame. As a result,...

CVE-2026-46243

🚨 CVE-2026-46243 - CIFSwitch Linux Kernel Local Privilege Escalation LPE Local Privilege Escalation vulnerability affecting the Linux Kernel CIFS/SMB client. 📖 Overview CVE-2026-46243 is a Local Privilege Escalation LPE vulnerability within the Linux Kernel's CIFS/SMB client. Improper validation ...

Astra Linux – Vulnerability found in Linux 6.1, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: fs/smb/client: fixed an out-of-bounds read in cifssanitizeprepath. When cifssanitizeprepath is called with an empty string or a string containing only delimiters e.g., /, the current logic attempts to check cursor2 - 1 before...

windows-smb-vulnerability-framework-cve-2025-33073

Windows SMB Client Vulnerability Research Framework Author: cyberseallll Created: 2025 Overview I developed this research framework to analyze and understand CVE-2025-33073, a critical Windows SMB Client Elevation of Privilege vulnerability. This implementation provides comprehensive tools for...

Blackash-CVE-2025-33073

✨ CVE-2025-33073: Windows SMB RCE Vulnerability 🚨 🔥 High-Severity Authenticated Remote Code Execution 🔥 Improper Access Control in Windows SMB Client CWE-284 🛡️ Key Details at a Glance Aspect| Details ---|--- CVSS v3.1 Score| 8.8 High 🔥 Affected Systems| Windows 10, 11, Server 2012–2025 all...

Rocky Linux 9 [CIQ] Security Update: bpftool / bpftool-debuginfo / kernel / kernel-64k / kernel-64k-core / etc Multiple Vulnerabilities (crxsa-2023_7749)

The Rocky Linux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the CIQ crxsa-20237749 advisory. kernel: use-after-free vulnerability in the smb client component CVE-2023-5345 kernel: IGB driver inadequate buffer size for frames larger than MTU...

Rocky Linux 8 [CIQ] Security Update: kernel-rt-debug-debuginfo / kernel-rt-debuginfo / etc (crlsa-2026_23259)

The Rocky Linux 8 host has packages installed that are affected by a vulnerability as referenced in the CIQ crlsa-202623259 advisory. kernel: Linux kernel: smb: client: reject userspace cifs.spnego descriptions CVE-2026-46243 Tenable has extracted the preceding description block directly from the...

Rocky Linux 9 [CIQ] Security Update: kernel / kernel-64k / kernel-64k-core / kernel-64k-debug / etc Multiple Vulnerabilities (crlsa-2026_0793)

The Rocky Linux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the CIQ crlsa-20260793 advisory. kernel: drm/xe: Make dma-fences compliant with the safe access rules CVE-2025-38703 kernel: smb: client: let recvdone verify dataoffset, datalength and...

CVE-2026-90125

A flaw was found in the SMB client of the Linux kernel. In the smb2newreadreq function, a request buffer is allocated but not properly released when certain error conditions occur during an asynchronous read operation. A remote attacker could repeatedly trigger these error conditions, leading to ...