DbgNexum

DbgNexum - Shellcode Injection DbgNexum is a Proof-of-Concept for injecting shellcode using the Windows Debugging API and Shared Memory File Mapping. It avoids writing and reading remote memory directly, instead using context manipulation to force the target process to load and execute the payloa...

CVE-2021-41773_CVE-2021-42013_Exploits

利用 CVE-2021-41773 与 CVE-2021-42013 概述 本仓库专注于利用 Apache HTTPD 中的两个漏洞：CVE-2021-41773 和 CVE-2021-42013。 这些 CVE 代表路径遍历漏洞，可能进一步导致文件映射以及 Apache HTTPD 服务器上的远程代码执行。 有关这些 CVE 的深入信息，包括潜在的缺陷、易受攻击的配置、利用方式等，请参阅这篇内容全面的博客文章： Dissecting and Exploiting CVE-2021-41773 and CVE-2021-42013。 环境要求与执行 要成功利用这些漏洞，你需要： Pyth...

CVE-2025-7771

一个用 Rust 编写的针对 CVE-2025-7771 的漏洞利用程序 源代码一览 data.rs，将存在漏洞的驱动程序二进制文件存储为静态数组 exploit.rs，基于该存在漏洞的驱动程序实现任意读写原语 filemap.rs，Win32 文件映射操作的简单封装 nt.rs，用 Rust 实现的一些 NT 功能 services.rs，Win32 服务管理（创建/删除、启动/停止/暂停/继续）的简单封装 spf.rs，基于 SuperFetch 实现虚拟地址到物理地址的转换 编译与运行 编译后将得到一个可执行文件，在命令行提示符中运行它，将产生类似如下的输出：...

CVE-2026-64065

In the Linux kernel, the following vulnerability has been resolved: netfs: fix VMBUGONFOLIO issue in netfswritebegin call The multiple runs of generic/013 test-case is capable to reproduce a kernel BUG at mm/filemap.c:1504 with probability of 30%. while true; do sudo ./check generic/013 done...

CVE-2026-64065

In the Linux kernel, the following vulnerability has been resolved: netfs: fix VMBUGONFOLIO issue in netfswritebegin call The multiple runs of generic/013 test-case is capable to reproduce a kernel BUG at mm/filemap.c:1504 with probability of 30%. while true; do sudo ./check generic/013 done...

CVE-2026-45942

In the Linux kernel, the following vulnerability has been resolved: ext4: fix e4b bitmap inconsistency reports A bitmap inconsistency issue was observed during stress tests under mixed huge-page workloads. Ext4 reported multiple e4b bitmap check failures like: ext4mbcomplexscangroup:2508: group...

CVE-2026-31648

Summary of CVE-2026-31648 (Linux kernel) • Affects the kernel vulnerability in filemap handling: nr_pages overflow in filemap_map_pages() can cause set_pte_range() to map beyond the size of a large folio, potentially corrupting page metadata. • Root cause (as documented): race condition between f...

Linux Distros Unpatched Vulnerability : CVE-2026-31450

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - ext4: publish jinode after initialization ext4inodeattachjinode publishes ei-jinode to concurrent users. It used to set ei-jinode before jbd2journalinitjbdinode...

CVE-2025-40272

A use-after-free race condition was found in the secretmem subsystem of the Linux kernel. When two tasks concurrently fault on the same page in a memfdsecret file, the losing task may free its folio before restoring the direct map entry. This allows the freed page to be reallocated while still...

CVE-2025-40006 mm/hugetlb: fix folio is still mapped when deleted

In the Linux kernel, the following vulnerability has been resolved: mm/hugetlb: fix folio is still mapped when deleted Migration may be raced with fallocating hole. removeinodesinglefolio will unmap the folio if the folio is still mapped. However, it's called without folio lock. If the folio is...

Linux kernel 安全漏洞

Linux kernel is the kernel used by Linux, the open source operating system of the Linux Foundation in the United States. A security vulnerability exists in Linux kernel that stems from improper handling of file mapping, which could lead to null pointer dereferencing...

kernel: mm: migrate: fix getting incorrect page mapping during page migration

A page mapping vulnerability was found in the Linux kernel. A call to the pagemapping function during a page migration may return an incorrect file mapping and cause a system crash if another thread is simultaneously attempting to offline the target page that is being migrated...

The vulnerability of the filemap_fault_recheck_pte_none() function in the Linux kernel’s memory management subsystem allows an attacker to compromise the integrity of protected information.

The vulnerability of the filemapfaultrecheckptenone function in the mm/filemap.c module of the Linux kernel’s memory management subsystem is related to the repeated use of previously freed memory due to competitive access to resources race condition. Exploiting this vulnerability could allow an...

CLSA-2024-1728936982 kernel: Fix of 86 CVEs

drm/amd/pm: Fix negative array index read CVE-2024-46821 - drm/amd/display: Check gpioid before used as array index CVE-2024-46818 - drm/amd/display: Check linkindex before accessing dc-links CVE-2024-46813 - drm/amd/display: Fix index may exceed array range within fpuupdatebwboundingbox...

Security update for the Linux Kernel

The SUSE Linux Enterprise 15 SP6 Azure kernel was updated to receive various security bugfixes. The following security bugs were fixed: CVE-2023-52610: net/sched: actct: fix skb leak and crash on ooo frags bsc1221610. CVE-2023-52752: smb: client: fix use-after-free bug in cifsdebugdataprocshow...

CVE-2023-52490

In the Linux kernel, the following vulnerability has been resolved: mm: migrate: fix getting incorrect page mapping during page migration When running stress-ng testing, we found below kernel crash after a few hours: Unable to handle kernel NULL pointer dereference at virtual address...

PT-2023-31465

Name of the Vulnerable Software and Affected Versions WireMock with GUI versions 3.0.4.0 through 3.2.0.0 Description The issue concerns stored cross-site scripting SXSS through the recording feature. An attacker can host a malicious payload and perform a test mapping pointing to the attacker's...

Exploit for Path Traversal in Apache Http_Server

PoC exploit for CVE-2021-41773 and CVE-2021-42013, two vulnerabi...

CVE-2019-9345

CVE-2019-9345 affects the Android kernel (sdcardfs) and describes a local elevation of privilege due to shared mapping of OBB files that can breach profile data separation. The vulnerability is classified as Elevation of Privilege (High) in the Kernel component per Pixel update bulletin, with loc...

Linux userfaultfd tmpfs File Permission Bypass

Linux: userfaultfd bypasses tmpfs file permissions CVE-2018-18397 Using the userfaultfd API, it is possible to first register a userfaultfd region for any VMA that fulfills vmacanuserfault: It must be an anonymous VMA -vmops==NULL, a hugetlb VMA VMHUGETLB, or a shmem VMA -vmops==shmemvmops. This...