cifswitch-check

cifswitch-check A shell script to check whether a Linux system is exposed to CIFSwitch CVE-2026-46243 — a local privilege escalation vulnerability in the Linux kernel's CIFS/SMB client that has been present since 2007. Runs on bare-metal hosts, VMs, and inside containers. Designed to drop straigh...

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...

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-2026-46243

🚨 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 ...

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...

CVE-2026-98685

A flaw was found in the Linux kernel's SMB client. This vulnerability can lead to information disclosure when extending a file via a clone range operation. Because the client fails to discard cached memory pages that straddle the original end-of-file boundary, data previously written past the...

CVE-2026-98686

A flaw was found in the Linux kernel's SMB Server Message Block client. When extending a file using a zero-range operation, cached memory pages past the previous end-of-file boundary are not properly discarded. A local user can exploit this vulnerability to view stale or previously buffered data...

CVE-2026-98684

A flaw was found in the Linux kernel's Server Message Block SMB client. When performing file space allocation operations against certain remote servers, such as Windows servers, the client queries allocated file ranges before flushing recently written data. Because the remote server may report...

CVE-2026-98683

A flaw was found in the Linux kernel's SMB client. When zeroing a range within a file that does not reach the end of the file, dirty cached data is not flushed before the client requests the server to zero the region. A local user performing a zero-range operation could cause dirty cached pages t...

CVE-2026-98682

A flaw was found in the Linux kernel's Server Message Block SMB client subsystem. Due to improper synchronization during server-side file copy and clone operations, pending write operations are not drained before copying begins. A local user could exploit this timing issue during copy operations ...

CVE-2026-98681

A flaw was found in the Linux kernel's SMB Server Message Block client. Multiple internal file status flags shared the same memory byte without unified locking, creating a race condition during concurrent file operations. A local user performing simultaneous file operations could cause updates to...

kernel: smb: client: fix OOB read/write from unvalidated DataOffset in coalesce_t2()

A flaw was found in the Linux kernel's Server Message Block SMB client. The coalescet2 function processes server-supplied DataOffset fields without proper validation against buffer boundaries. A remote attacker could exploit this by crafting malicious SMB responses. This could lead to out-of-boun...

CVE-2026-93210

A flaw was found in the Linux kernel's Server Message Block SMB client Distributed File System DFS cache. This vulnerability occurs due to improper handling of invalid target hints, specifically when a null pointer is dereferenced within the dfscachenorequpdatetgthint function. An attacker could...

kernel: smb: client: reject a tree connect response whose byte count is too small

A flaw was found in the Linux kernel's Server Message Block SMB client. A remote malicious SMB server could send a specially crafted tree connect response with a byte count that is too small. This incorrect handling can lead to an integer underflow, causing the client to read beyond an allocated...

kernel: smb: client: reject a tree connect response whose byte count is too small

A flaw was found in the Linux kernel's Server Message Block SMB client. A remote malicious SMB server could send a specially crafted tree connect response with a byte count that is too small. This incorrect handling can lead to an integer underflow, causing the client to read beyond an allocated...

Siemens SIMATIC S7-1500 TM MFP Out-of-bounds Read (CVE-2026-43112)

In the Linux kernel, the following vulnerability has been resolved: fs/smb/client: fix 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 cursor2...

CentOS Linux 6 [TuxCare] Security Update: kernel / kernel-abi-whitelists / kernel-debug / kernel-debug-devel / etc Multiple Vulnerabilities (CENTOS6:CLSA-2026:1791949745)

The CentOS Linux 6 host has packages installed that are affected by multiple vulnerabilities as referenced in the TuxCare CENTOS6:CLSA-2026:1791949745 advisory. - In the Linux kernel, the following vulnerability has been resolved: HID: core: zero-initialize the report buffer Since the report buff...

Siemens SIMATIC S7-1500 TM MFP Out-of-bounds Write (CVE-2026-46195)

In the Linux kernel, the following vulnerability has been resolved: smb: client: validate dacloffset before building DACL pointers parsesecdesc, buildsecdesc, and the chown path in idmodetocifsacl all add the server-supplied dacloffset to pntsd before proving a DACL header fits inside the returne...

Siemens SIMATIC S7-1500 TM MFP Improper Input Validation (CVE-2026-46185)

In the Linux kernel, the following vulnerability has been resolved: smb/client: fix out-of-bounds read in symlinkdata Since smb2checkmessage returns success without length validation for the symlink error response, in symlinkdata it is possible for iov-iovlen to be smaller than sizeofstruct...

kernel: smb: client: reject a tree connect response whose byte count is too small

A flaw was found in the Linux kernel's Server Message Block SMB client. A remote malicious SMB server could send a specially crafted tree connect response with a byte count that is too small. This incorrect handling can lead to an integer underflow, causing the client to read beyond an allocated...