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Search Results (405802 CVEs found)
| CVE | Vendors | Products | Updated | CVSS v3.1 |
|---|---|---|---|---|
| CVE-2026-95943 | 1 Microsoft | 12 Windows 11 23h2, Windows 11 23h2, Windows 11 24h2 and 9 more | 2026-10-29 | 7 High |
| Double free in Connected Devices Platform Service (Cdpsvc) allows an authorized attacker to elevate privileges locally. | ||||
| CVE-2026-83760 | 1 Microsoft | 23 Windows 10 1607, Windows 10 1809, Windows 10 21h2 and 20 more | 2026-10-29 | 5.5 Medium |
| Out-of-bounds read in Microsoft Bluetooth Driver allows an authorized attacker to disclose information locally. | ||||
| CVE-2026-96206 | 1 Microsoft | 1 Windows Subsystem For Linux | 2026-10-29 | 6.5 Medium |
| Use of uninitialized resource in Windows Subsystem for Linux allows an authorized attacker to disclose information locally. | ||||
| CVE-2026-83741 | 1 Microsoft | 20 Windows 10 1809, Windows 10 21h2, Windows 10 21h2 and 17 more | 2026-10-29 | 7.8 High |
| Use after free in Internet Explorer allows an authorized attacker to elevate privileges locally. | ||||
| CVE-2026-83740 | 1 Microsoft | 20 Windows 10 1809, Windows 10 21h2, Windows 10 21h2 and 17 more | 2026-10-29 | 7 High |
| Use after free in Windows Hello allows an authorized attacker to elevate privileges locally. | ||||
| CVE-2026-83739 | 1 Microsoft | 20 Windows 10 1809, Windows 10 21h2, Windows 10 21h2 and 17 more | 2026-10-29 | 7.5 High |
| Use after free in Windows Bluetooth Service allows an unauthorized attacker to execute code over an adjacent network. | ||||
| CVE-2026-83738 | 1 Microsoft | 28 Windows 10 1607, Windows 10 1809, Windows 10 21h2 and 25 more | 2026-10-29 | 7 High |
| Use after free in Windows Ancillary Function Driver for WinSock allows an authorized attacker to elevate privileges locally. | ||||
| CVE-2026-83725 | 1 Microsoft | 28 Windows 10 1607, Windows 10 1809, Windows 10 21h2 and 25 more | 2026-10-29 | 8.8 High |
| Heap-based buffer overflow in Microsoft Windows Search Component allows an unauthorized attacker to execute code over a network. | ||||
| CVE-2026-83737 | 1 Microsoft | 28 Windows 10 1607, Windows 10 1809, Windows 10 21h2 and 25 more | 2026-10-29 | 5.5 Medium |
| Out-of-bounds read in Windows NTFS allows an authorized attacker to disclose information locally. | ||||
| CVE-2026-83513 | 1 Microsoft | 28 Windows 10 1607, Windows 10 1809, Windows 10 21h2 and 25 more | 2026-10-29 | 7.8 High |
| Use after free in Windows Universal Disk Format File System Driver (UDFS) allows an authorized attacker to elevate privileges locally. | ||||
| CVE-2026-83736 | 1 Microsoft | 17 Windows 10 21h2, Windows 10 21h2, Windows 10 22h2 and 14 more | 2026-10-29 | 5.5 Medium |
| Heap-based buffer overflow in Windows Kernel allows an authorized attacker to elevate privileges locally. | ||||
| CVE-2026-83514 | 1 Microsoft | 28 Windows 10 1607, Windows 10 1809, Windows 10 21h2 and 25 more | 2026-10-29 | 7.8 High |
| Heap-based buffer overflow in Windows Partition Management Driver allows an authorized attacker to elevate privileges locally. | ||||
| CVE-2026-83735 | 1 Microsoft | 12 Windows 11 23h2, Windows 11 23h2, Windows 11 24h2 and 9 more | 2026-10-29 | 7.8 High |
| Release of invalid pointer or reference in Windows Kernel allows an authorized attacker to elevate privileges locally. | ||||
| CVE-2026-83516 | 1 Microsoft | 14 Windows 10 1809, Windows 11 24h2, Windows 11 24h2 and 11 more | 2026-10-29 | 7.5 High |
| Out-of-bounds read in Windows Local Security Authority Subsystem Service (LSASS) allows an unauthorized attacker to deny service over a network. | ||||
| CVE-2026-98966 | 1 Linux | 2 Linux, Linux Kernel | 2026-10-29 | 2.3 Low |
| In the Linux kernel, the following vulnerability has been resolved: bonding: fix the program leak when XDP is replaced We need to release the reference on the old BPF prog, whether we are going to no-prog, or replacing the prog with another. Spotted by AI while running tests for the propagation series (leaked programs were accumulating). Selftest will come in the net-next series to avoid conflicts. | ||||
| CVE-2026-98972 | 1 Linux | 2 Linux, Linux Kernel | 2026-10-29 | 4.1 Medium |
| In the Linux kernel, the following vulnerability has been resolved: cgroup/cpuset: Don't access cpuset_cgrp_subsys.root in is_in_v2_mode() After seeing the patch [1] to guard is_in_v2_mode() with RCU, it makes me realize that is_in_v2_mode() may be called in a context where a new cgroup filesystem is being rebound with stale cpuset_cgrp_subsys.root pointer. Avoid this potential UaF situation by adding a new cpuset_v2_mode flag which is set when the cpuset_v2_mode mount option is used. This flag is written into only when cpuset_bind() is being called with a stable cpuset_cgrp_subsys.root value. The is_in_v2_mode() helper is modified to read the new cpuset_v2_mode flag instead of accessing cpuset_cgrp_subsys.root directly. [1] https://lore.kernel.org/lkml/20260929084124.626693-2-arighi@nvidia.com | ||||
| CVE-2026-98973 | 1 Linux | 2 Linux, Linux Kernel | 2026-10-29 | 4.1 Medium |
| In the Linux kernel, the following vulnerability has been resolved: drm/bridge: Fix unlocked list_del in drm_bridge_add() When re-adding a bridge that was previously removed, drm_bridge_add() drops it from bridge_lingering_list without holding bridge_lock. Both bridge_list and bridge_lingering_list are protected by bridge_lock, as they are concurrently modified by drm_bridge_remove() and __drm_bridge_free(), and walked by the debugfs 'bridges' file. Running the list_empty() test and the list_del_init() outside of the lock may therefore corrupt either list. Perform both under bridge_lock. | ||||
| CVE-2026-83517 | 1 Microsoft | 28 Windows 10 1607, Windows 10 1809, Windows 10 21h2 and 25 more | 2026-10-29 | 9.8 Critical |
| Heap-based buffer overflow in Microsoft Windows Media Foundation allows an unauthorized attacker to execute code over a network. | ||||
| CVE-2026-98980 | 1 Linux | 2 Linux, Linux Kernel | 2026-10-29 | 8.8 High |
| In the Linux kernel, the following vulnerability has been resolved: namei: don't reveal overmounted entries in refwalk In rcuwalk the dentry is validated before it is accepted. step_into() step_into() rechecks d_seq and __follow_mount_rcu() rechecks mount_lock. An entry that gets unlinked in between causes the lookup to retry and miss. A refwalk doesn't do this. lookup_fast() takes a reference on the hashed dentry and simply accepts it. So an unlink that happens after the reference was taken isn't seen by refwalk. That's fine for a simple file. We just happened to open it before it was unlinked, no problem. For a mountpoint and specifically a locked mountpoint it very much isn't. The unlink detaches all mounts and then removes the name. Any refwalk that hasn't traversed the mounts yet simply reveals the underlying entry. It's a very narrow window but it can be hit: reads of a covered file in 60 s, 3 walkers, ~15000 unlinks no widening 27 that step + 200 us 3741 See the appended patch for a more reliable reproducer. So check the entry after step_into(). unlink(), rmdir() and rename() mark the dentry with dont_mount() before they detach the mounts and remove the dentry. So a dentry that is marked with DCACHE_CANT_MOUNT and is unhashed by the time its mounts were looked at is a name that was unlinked under the refwalk. DCACHE_CANT_MOUNT is read after the mounts were looked up and it is set before they are detached by detach_mounts(). A refwalk that missed the mounts will see DCACHE_CANT_MOUNT. Plain d_unlinked() is fine. A rename takes the dentry off its hash chain but ___d_drop() leaves d_hash.pprev set. So only __d_drop() and a rename over the dentry unhash it. The only move that flips IS_ROOT splices in a disconnected alias. That doesn't have DCACHE_CANT_MOUNT set. Add the to step_into_slowpath(). ".." and LOOKUP_DOWN may legitimately land on an unhashed directory. A refwalk that crossed onto a mount has path.mnt different from nd->path.mnt. A dentry that a filesystem dropped on its own (d_invalidate(), d_drop()) doesn't have the flag set and is treated as before. // SPDX-License-Identifier: GPL-2.0 /* * unlink_covered: unlink a file that is a mountpoint in a detached copy of * its mount, against walkers that open it through that copy. * * A is a tmpfs with the file f1 (content SECRET_F) and the plain file * MARK_A. A' is an open_tree(OPEN_TREE_CLONE) copy of A with MARK_A bound * on A'/f1, held through an O_PATH fd on its root once the tree fd is * closed. Walkers open f1 through that fd while the driver unlinks A/f1, * where nothing is mounted on it. A walker may read MARK_A or get ENOENT. * A read of SECRET_F is a hit: the name was found after its mount was * gone. The lockless walks use openat2(RESOLVE_CACHED). * * usage: unlink_covered [-t seconds] [-w walkers] */ #ifndef _GNU_SOURCE #define _GNU_SOURCE #endif #include <errno.h> #include <fcntl.h> #include <pthread.h> #include <stdatomic.h> #include <stdio.h> #include <stdlib.h> #include <string.h> #include <unistd.h> #include <sys/mount.h> #include <sys/stat.h> #include <sys/syscall.h> #include <linux/openat2.h> #ifndef __NR_open_tree #define __NR_open_tree 428 #endif #ifndef __NR_move_mount #define __NR_move_mount 429 #endif #ifndef __NR_openat2 #define __NR_openat2 437 #endif #ifndef OPEN_TREE_CLONE #define OPEN_TREE_CLONE 1 #endif #ifndef OPEN_TREE_CLOEXEC #define OPEN_TREE_CLOEXEC O_CLOEXEC #endif #ifndef MOVE_MOUNT_F_EMPTY_PATH #define MOVE_MOUNT_F_EMPTY_PATH 0x00000004 #endif #define WORK "/tmp/uc" #define ADIR WORK "/A" static int duration = 60, nwalkers = 3; static atomic_int stop, writer_waiting; static pthread_rwlock_t cur_lock = PTHREAD_RWLOCK_INITIALIZER; static int cur_fd = -1; /* the root of A', -1 while there is none */ static atomic_long n_unlink, n_walk, n_mark, n_enoent, n_othe ---truncated--- | ||||
| CVE-2026-98986 | 1 Linux | 2 Linux, Linux Kernel | 2026-10-29 | 5.5 Medium |
| In the Linux kernel, the following vulnerability has been resolved: namespace: remove the fsnotify marks of a mount namespace in process context mnt_ns_release() drops the last passive reference of a mount namespace and removes its fanotify marks via fsnotify_mntns_delete(). That takes the mutex of every group with a mark on the namespace and the spinlock of the connector. Fine from process context. But mnt_ns_tree_remove() hands the reference the namespace was allocated with to call_rcu() and so the marks are removed from the RCU softirq: BUG: sleeping function called from invalid context at kernel/locking/mutex.c:623 in_atomic(): 1, irqs_disabled(): 0, non_block: 0, pid: 0, name: swapper/3 __mutex_lock+0x113/0x24b0 fsnotify_destroy_marks+0x11b/0x3d0 mnt_ns_release_rcu+0x57/0xa0 rcu_core+0x6b6/0x1e40 and lockdep complains about the connector lock being taken from softirq context. A fanotify group with a FAN_MARK_MNTNS mark on the mount namespace of another task is all that's needed. Root in a user namespace can do that for a mount namespace it owns. The task exits and the namespace is freed with the mark still on it. Remove the marks in free_mnt_ns() before the namespace is handed to RCU. That runs in process context once the last active reference is gone. A mark is added through a file descriptor to the namespace which holds an active reference so no mark can show up after that. | ||||