CVE-2026-46243

🚨 CVE-2026-46243 - CIFSwitch Escalada de Privilegios Local del Kernel de Linux LPE Vulnerabilidad de escalada de privilegios local que afecta al cliente CIFS/SMB del kernel de Linux. 📖 Resumen CVE-2026-46243 es una vulnerabilidad de escalada de privilegios local LPE dentro del cliente CIFS/SMB de...

kernel: smb: client: fix double-free in SMB2_open() replay

A flaw was found in the Linux kernel's Server Message Block SMB client. A double-free vulnerability exists in the SMB2open replay mechanism. This occurs when a response-bearing attempt returns a replayable error and frees its response buffer, and then the cleanup process attempts to free the same...

AZL-102230 CVE-2026-90125 affecting package kernel 6.6.150.1-1

In the Linux kernel, the following vulnerability has been resolved: smb: client: fix request buffer leak in smb2newreadreq smb2newreadreq allocates the request buffer with smb2plainreqinit but only publishes it to the caller with buf = req at the very end of the function. Two error returns sit in...

CVE-2026-90125

CVE-2026-90125 is a request buffer leak in the Linux kernel's SMB client , specifically in smb2_new_read_req(). The function allocates a buffer via smb2_plain_req_init() but fails to release it on two early error returns: a failed initialization and a failed smbd_register_mr() call. Because -EAGA...

EUVD-2026-81718

In the Linux kernel, the following vulnerability has been resolved: smb: client: fix request buffer leak in smb2newreadreq smb2newreadreq allocates the request buffer with smb2plainreqinit but only publishes it to the caller with buf = req at the very end of the function. Two error returns sit in...

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...

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

Marco de Investigación de Vulnerabilidades del Cliente SMB de Windows Autor: cyberseallll Creado: 2025 Descripción General Desarrollé este marco de investigación para analizar y comprender CVE-2025-33073, una vulnerabilidad crítica de Elevación de Privilegios en el Cliente SMB de Windows. Esta...

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...

kernel: smb: client: fix double-free in SMB2_open() replay

A flaw was found in the Linux kernel's Server Message Block SMB client. A double-free vulnerability exists in the SMB2open replay mechanism. This occurs when a response-bearing attempt returns a replayable error and frees its response buffer, and then the cleanup process attempts to free the same...

kernel: smb: client: fix query directory replay double-free

A flaw was found in the Linux kernel's Server Message Block SMB client. This vulnerability, a double-free error, occurs when the client attempts to free the same memory buffer twice during a directory query operation. An attacker could potentially exploit this flaw to cause memory corruption,...

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-2026-84543

An out-of-bounds access issue was addressed with improved bounds checking. This issue is fixed in macOS Golden Gate 27, macOS Sequoia 15.8, macOS Tahoe 26.7. Connecting to a malicious SMB server may cause unexpected system termination or corrupt kernel memory...

CVE-2026-84509

An out-of-bounds read was addressed with improved bounds checking. This issue is fixed in macOS Golden Gate 27, macOS Sequoia 15.8, macOS Tahoe 26.7. Connecting to a malicious SMB server may lead to unexpected system termination...

CVE-2026-84515

An out-of-bounds write issue was addressed with improved bounds checking. This issue is fixed in macOS Golden Gate 27, macOS Sequoia 15.8, macOS Tahoe 26.7. Connecting to a malicious SMB server may lead to kernel memory corruption...

CVE-2026-84515

An out-of-bounds write issue was addressed with improved bounds checking. This issue is fixed in macOS Golden Gate 27, macOS Sequoia 15.8, macOS Tahoe 26.7. Connecting to a malicious SMB server may lead to kernel memory corruption...

CVE-2026-84509

An out-of-bounds read was addressed with improved bounds checking. This issue is fixed in macOS Golden Gate 27, macOS Sequoia 15.8, macOS Tahoe 26.7. Connecting to a malicious SMB server may lead to unexpected system termination...

CVE-2026-84509

An out-of-bounds read was addressed with improved bounds checking. This issue is fixed in macOS Golden Gate 27, macOS Sequoia 15.8, macOS Tahoe 26.7. Connecting to a malicious SMB server may lead to unexpected system termination...

EUVD-2026-77995

An integer underflow was addressed with improved input validation. This issue is fixed in macOS Golden Gate 27, macOS Sequoia 15.8, macOS Tahoe 26.7. Connecting to a malicious SMB server may lead to unexpected system termination...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: smb: Client: Fixed a potential Use-after-Free UAF in isvalidoplockbreak. Skipped sessions that are being torn down status == SESEXITING to avoid UAF...

Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1, and Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: smb: client: fixed UAF in async decryption Performing async decryption large read results in a crash due to a slabuseafterfree issue in the crypto API. Reproducing the issue: mount.cifs -o ...,seal,esize=1 //srv/share /mnt dd...