CIFSwitch-Checker-CVE-2026-46243

CIFSwitch Checker - CVE-2026-46243 适用于 Linux 的检查器，用于识别可能受到 CIFSwitch 漏洞 CVE-2026-46243 影响的配置。 该工具不利用漏洞，也不修改系统。主要目标是帮助识别潜在受影响的计算机并验证缓解措施。 该工具对以下内容执行被动检查： cifs-utils cifs.upcall request-key CIFS/SMB 用户命名空间 常见缓解措施 技术参考 原始漏洞和用于开发此检查器的概念验证 PoC 可在以下仓库中找到： https://github.com/manizada/CIFSwitch 安装与使用 克隆仓...

cifswitch-check

cifswitch-check 一个用于检查 Linux 系统是否暴露于 CIFSwitch CVE-2026-46243 的 Shell 脚本——这是一个自 2007 年以来一直存在于 Linux 内核 CIFS/SMB 客户端中的本地权限提升漏洞。 可在裸机主机、虚拟机以及容器内运行。设计用于直接嵌入 CI/CD 管道。 背景 CIFSwitch 于 2026 年 5 月 28 日由安全研究员 Asim Manizada 披露。该漏洞将内核 cifs.spnego 密钥类型中缺失的输入验证与 cifs-utils 中拥有 root 权限的 cifs.upcall 辅助程序串联起来。...

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...

CVE-2026-89630 smb: client: restore the data_offset bound in is_valid_oplock_break()

In the Linux kernel, the following vulnerability has been resolved: smb: client: restore the dataoffset bound in isvalidoplockbreak Commit 83bfbd0bb902 "cifs: Remove the RFC1002 header from smbhdr" changed the quantity this bound is measured against. It used to be srv-totalread minus the 4-byte...

PT-2026-72498

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An integer overflow exists in the SMB client during the validation of the PASSTHRU FSCTL response payload within the smb2 ioctl query info function. The issue occurs because the...

SUSE SLES15 / openSUSE 15 : Security update for the Linux Kernel (SUSE-SU-2026:1041-1)

The remote SUSE Linux SLES15 / SLESSAP15 / openSUSE 15 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2026:1041-1 advisory. The SUSE Linux Enterprise 15 SP6 kernel was updated to receive various security bugfixes. The following security bugs...

Security update for the Linux Kernel

The SUSE Linux Enterprise 15 SP7 RT kernel was updated to receive various security bugfixes. The following security bugs were fixed: CVE-2023-53817: crypto: lib/mpi - avoid null pointer deref in mpicmpui bsc1254992. CVE-2025-39748: bpf: Forget ranges when refining tnum after JSET bsc1249587...

Security update for the Linux Kernel (Live Patch 25 for SLE 15 SP4)

This update for the Linux Kernel 5.14.21-15040024116 fixes several issues. The following security issues were fixed: CVE-2024-50264: vsock/virtio: Initialization of the dangling pointer occurring in vsk-trans bsc1233712. CVE-2022-48956: ipv6: avoid use-after-free in ip6fragment bsc1232637...

Cannot restore to the backup repository host when storage VSP is enabled

Article Applicability Starting in Veeam Backup & Replication 12.1, this error will no longer occur due to internal coding changes. Challenge A Hyper-V Instant Recovery or SureBackup Job fails with the error message: Cannot restore to the backup repository host when storage VSP is enabled. Cause T...

Samba Server Detection

The remote host is running Samba, a CIFS/SMB server for Linux and Unix. C Tenable Network Security, Inc. include"compat.inc"; if description scriptid25240; scriptversion"1.15"; scriptsetattributeattribute:"pluginmodificationdate", value:"2022/10/12"; scriptnameenglish:"Samba Server Detection";...

CVE-2002-1955: Undefined Security Weakness

Iomega NAS A300U uses cleartext LANMAN authentication when mounting CIFS/SMB drives, which allows remote attackers to perform a man-in-the-middle attack...