The internet is broken right now.
96 critical CVEs without a fix in the last 48 hours. Somewhere a staging server is public. It always is. 34 more already have a fix that someone still has to apply.
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CVE-2026-105574
Use after free in Windows MIDI Service Module allows an authorized attacker to elevate privileges locally.
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CVE-2026-105558
Heap-based buffer overflow in Windows Deployment Services allows an authorized attacker to execute code over a network.
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CVE-2026-105549
Out-of-bounds read in Windows Smart Card allows an authorized attacker to disclose information with a physical attack.
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CVE-2026-105551
Heap-based buffer overflow in Windows NetBIOS allows an unauthorized attacker to elevate privileges over a network.
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CVE-2026-105552
An information disclosure vulnerability exists when the Windows kernel improperly initializes objects in memory. To exploit this vulnerability, an authenticated attacker could run a specially crafted application. An attacker who successfully exploited this vulnerability could obtain information to further compromise the user’s system. The update addresses the vulnerability by correcting how the Windows kernel initializes objects in memory.
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CVE-2026-105553
Stack-based buffer overflow in Windows Filtering Platform (WFP) allows an authorized attacker to elevate privileges locally.
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CVE-2026-105554
Heap-based buffer overflow in Windows Background Intelligent Transfer Service (BITS) allows an authorized attacker to elevate privileges locally.
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CVE-2026-105543
Null pointer dereference in Windows Installer allows an authorized attacker to elevate privileges locally.
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CVE-2026-105545
An elevation of privilege vulnerability exists in the Windows Installer when the Windows Installer fails to properly sanitize input leading to an insecure library loading behavior. A locally authenticated attacker could run arbitrary code with elevated system privileges. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights. The security update addresses the vulnerability by correcting the input sanitization error to preclude unintended elevation.
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CVE-2026-105547
Double free in Windows Setup and Deployment allows an authorized attacker to elevate privileges locally.
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CVE-2026-105537
Use of uninitialized resource in Mailslot File System allows an authorized attacker to disclose information locally.
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CVE-2026-105534
Heap-based buffer overflow in Windows Storage allows an unauthorized attacker to execute code over a network.
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CVE-2026-105528
Heap-based buffer overflow in Desktop Window Manager allows an authorized attacker to elevate privileges locally.
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CVE-2026-105530
Use after free in Windows System Events Broker allows an authorized attacker to disclose information locally.
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CVE-2026-105522
Use after free in Winlogon allows an authorized attacker to elevate privileges locally.
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CVE-2026-105525
Integer overflow or wraparound in Windows Network Connection Broker allows an authorized attacker to elevate privileges locally.
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CVE-2026-105526
Double free in Winsock allows an authorized attacker to elevate privileges locally.
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CVE-2026-105512
Integer underflow (wrap or wraparound) in Microsoft QUIC allows an unauthorized attacker to deny service over a network.
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CVE-2026-105515
Buffer over-read in Windows Message Queuing allows an unauthorized attacker to deny service over a network.
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CVE-2026-105518
Use after free in Windows iSCSI allows an unauthorized attacker to execute code over a network.
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CVE-2026-105506
Buffer over-read in Windows Shell allows an authorized attacker to disclose information locally.
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CVE-2026-105507
An elevation of privilege vulnerability exists in the Windows Installer when the Windows Installer fails to properly sanitize input leading to an insecure library loading behavior. A locally authenticated attacker could run arbitrary code with elevated system privileges. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights. The security update addresses the vulnerability by correcting the input sanitization error to preclude unintended elevation.
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CVE-2026-105509
Use after free in Windows Resilient File System (ReFS) allows an authorized attacker to elevate privileges locally.
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CVE-2026-105510
Use after free in Windows Secure Socket Tunneling Protocol (SSTP) allows an authorized attacker to elevate privileges locally.
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CVE-2026-105499
Out-of-bounds read in Windows Advanced Rasterization Platform allows an authorized attacker to elevate privileges locally.
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CVE-2026-105503
Heap-based buffer overflow in Windows Management Instrumentation allows an authorized attacker to elevate privileges locally.
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CVE-2026-105504
An elevation of privilege vulnerability exists in the way that the Windows Kernel handles objects in memory. An attacker who successfully exploited the vulnerability could execute code with elevated permissions. To exploit the vulnerability, a locally authenticated attacker could run a specially crafted application. The security update addresses the vulnerability by ensuring the Windows Kernel properly handles objects in memory.
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CVE-2026-105495
Heap-based buffer overflow in Windows Advanced Rasterization Platform allows an authorized attacker to elevate privileges locally.
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CVE-2026-105496
Double free in Windows Advanced Rasterization Platform allows an authorized attacker to elevate privileges locally.
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CVE-2026-105497
Heap-based buffer overflow in Windows Advanced Rasterization Platform allows an authorized attacker to elevate privileges locally.
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CVE-2026-105498
Heap-based buffer overflow in Windows Advanced Rasterization Platform allows an authorized attacker to elevate privileges locally.
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CVE-2026-105490
Stack-based buffer overflow in Windows Advanced Rasterization Platform allows an authorized attacker to elevate privileges locally.
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CVE-2026-105491
Heap-based buffer overflow in Windows Advanced Rasterization Platform allows an authorized attacker to elevate privileges locally.
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CVE-2026-105492
Out-of-bounds read in Microsoft Remote Registry Service allows an authorized attacker to deny service over a network.
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CVE-2026-105493
Stack-based buffer overflow in Windows Advanced Rasterization Platform allows an authorized attacker to elevate privileges locally.
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CVE-2026-105437
Affected versions of Git have a heap buffer overflow in the three-way merge code (xdiff), which an attacker can trigger through a repository they control. When Git merges a file, it first adds up the size of the merged output, allocates a buffer of that size, and then writes the output into it. That total was kept in a 32-bit signed integer. The conflict-marker-size attribute, which can be set from a committed .gitattributes file, accepts any positive integer, and the markers are written several times for every conflict. A small file with a huge marker size and many separate conflicts can therefore push the total past 4 GiB, so the integer wraps to a small value and Git writes attacker-controlled merge output past the end of a buffer that is too small. At minimum this crashes Git, and because the overflow is large and its contents are largely attacker-controlled, worse heap corruption is possible. Any command that does a textual three-way merge can trigger it, such as git-merge(1), git-rebase(1), git-cherry-pick(1), and git-merge-tree(1). The latter is most likely a target for Git forges, which might use git-merge-tree(1) on the server-side to check mergeability. When the server reads attributes from trees in the repository (for example through attr.tree or --attr-source), any user who can push branches and request that they be merged (for example by opening a pull or merge request) can trigger the overflow without anyone else doing anything, and the data they push is small because the oversized output only appears during the merge. The problem has been patched by computing the size as size_t and checking every addition for overflow, so Git stops with an error instead of overflowing. Servers that cannot upgrade right away can add * conflict-marker-size=7 to each repository's info/attributes as a workaround, which overrides any in-tree .gitattributes, or turn off server-side mergeability checks for untrusted repositories.
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CVE-2026-105028
Out-of-bounds read in Windows Win32K allows an authorized attacker to elevate privileges locally.
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CVE-2026-105023
Heap-based buffer overflow in Windows Advanced Rasterization Platform allows an authorized attacker to elevate privileges locally.
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CVE-2026-105024
Use after free in Windows Storage Spaces Controller allows an authorized attacker to elevate privileges locally.
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CVE-2026-105025
Double free in Windows Advanced Rasterization Platform allows an authorized attacker to elevate privileges locally.
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CVE-2026-105026
Heap-based buffer overflow in Windows Advanced Rasterization Platform allows an authorized attacker to elevate privileges locally.
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CVE-2026-105020
Heap-based buffer overflow in Windows Advanced Rasterization Platform allows an authorized attacker to elevate privileges locally.
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CVE-2026-105021
Heap-based buffer overflow in Windows Advanced Rasterization Platform allows an authorized attacker to elevate privileges locally.
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CVE-2026-105022
Use after free in Windows Advanced Rasterization Platform allows an authorized attacker to elevate privileges locally.
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CVE-2026-103571
An elevation of privilege vulnerability exists when the Windows Cryptography Next Generation (CNG) Key Isolation service improperly handles memory. An attacker who successfully exploited this vulnerability could run processes in an elevated context. To exploit this vulnerability, an attacker would first have to gain execution on the victim system. An attacker could then run a specially crafted application to elevate privileges. The security update addresses the vulnerability by correcting how the Windows CNG Key Isolation Service handles memory.
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CVE-2026-105018
Heap-based buffer overflow in Windows Partition Management Driver allows an authorized attacker to elevate privileges with a physical attack.
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CVE-2026-100204
Use after free in HEIF Image Extensions allows an unauthorized attacker to execute code locally.
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CVE-2026-100223
An elevation of privilege vulnerability exists when reparse points are created by sandboxed processes allowing sandbox escape. An attacker who successfully exploited the vulnerability could use the sandbox escape to elevate privileges on an affected system. To exploit the vulnerability, an attacker would first have to log on to the system, and then run a specially crafted application to take control over the affected system. The security update addresses the vulnerability by preventing sandboxed processes from creating reparse points targeting inaccessible files.
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CVE-2026-63018
Integer underflow (wrap or wraparound) for some Intel(R) Metrics Discovery Application Programming Interface software before version 1.16.189 within Ring 3: User Applications may allow a denial of service. Unprivileged software adversary with an authenticated user combined with a low complexity attack may enable denial of service. This result may potentially occur via local access when attack requirements are not present with special internal knowledge and requires no user interaction. The potential vulnerability may impact the confidentiality (none), integrity (none) and availability (low) of the vulnerable system, resulting in subsequent system confidentiality (none), integrity (none) and availability (none) impacts.
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CVE-2026-63540
Heap-based buffer overflow for some Hyperscan before version v5.4.2.1 within Ring 3: User Applications may allow a denial of service. Unprivileged software adversary with an unauthenticated user combined with a low complexity attack may enable denial of service. This result may potentially occur via local access when attack requirements are not present without special internal knowledge and requires passive user interaction. The potential vulnerability may impact the confidentiality (none), integrity (low) and availability (high) of the vulnerable system, resulting in subsequent system confidentiality (none), integrity (none) and availability (none) impacts.